id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
6bc9c0a905228bea5c53ec195fe54f5f0233dccc | Analyze and fix the following issue in the Linux kernel code: powerpc: fix KUAP warning in VMX usercopy path | Problem Details:
On powerpc with PREEMPT_FULL or PREEMPT_LAZY and function tracing enabled,
KUAP warnings can be triggered from the VMX usercopy path under memory
stress workloads.
KUAP requires that no subfunctions are called once userspace access has
been enabled. The existing VMX copy implementation violates this
r... | ```diff
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 570b3d91e2e4..17e63244e885 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -15,6 +15,9 @@
#define TASK_SIZE_MAX TASK_SIZE_USER64
#endif
+/* Threshold above which VMX copy p... |
e9bbfb4bfa86c6b5515b868d6982ac60505d7e39 | Analyze and fix the following issue in the Linux kernel code: powerpc, perf: Check that current->mm is alive before getting user callchain | Problem Details:
It may happen that mm is already released, which leads to kernel panic.
This adds the NULL check for current->mm, similarly to
commit 20afc60f892d ("x86, perf: Check that current->mm is alive before getting user callchain").
I was getting this panic when running a profiling BPF program
(profile.py fro... | ```diff
diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c
index 26aa26482c9a..992cc5c98214 100644
--- a/arch/powerpc/perf/callchain.c
+++ b/arch/powerpc/perf/callchain.c
@@ -103,6 +103,11 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re
void
perf_callchain_u... |
0a8321dde01ffdbd9455a028194d57484def59eb | Analyze and fix the following issue in the Linux kernel code: powerpc/mem: Move CMA reservations to arch_mm_preinit | Problem Details:
commit 4267739cabb8 ("arch, mm: consolidate initialization of SPARSE memory model"),
changed the initialization order of "pageblock_order" from...
start_kernel()
- setup_arch()
- initmem_init()
- sparse_init()
- set_pageblock_order(); // this sets the pageblock_order
... | ```diff
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index cb5b73adc250..b1761909c23f 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -35,7 +35,6 @@
#include <linux/of_irq.h>
#include <linux/hugetlb.h>
#include <linux/pgtable.h>
-#in... |
87f7dff3ec75b91def0024ebaaf732457f47a63b | Analyze and fix the following issue in the Linux kernel code: octeontx2-af: devlink: fix NIX RAS reporter to use RAS interrupt status | Problem Details:
The NIX RAS health report path uses nix_af_rvu_err when handling the
NIX_AF_RVU_RAS case, so the report prints the ERR interrupt status rather
than the RAS interrupt status.
Use nix_af_rvu_ras for the NIX_AF_RVU_RAS report.
Fixes: 5ed66306eab6 ("octeontx2-af: Add devlink health reporters for NIX")
Si... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
index 7ef3da0f6a88..a29f1ea04c7d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
@@ -327,10 +327,10 @@... |
dc26ca99b835e21e76a58b1463b84adb0ca34f58 | Analyze and fix the following issue in the Linux kernel code: octeontx2-af: devlink: fix NIX RAS reporter recovery condition | Problem Details:
The NIX RAS health reporter recovery routine checks nix_af_rvu_int to
decide whether to re-enable NIX_AF_RAS interrupts. This is the RVU
interrupt status field and is unrelated to RAS events, so the recovery
flow may incorrectly skip re-enabling NIX_AF_RAS interrupts.
Check nix_af_rvu_ras instead befo... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
index fb15c794efc9..7ef3da0f6a88 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c
@@ -475,7 +475,7 @@ s... |
840c9d13cb1ca96683a5307ee8e221be163a2c1e | Analyze and fix the following issue in the Linux kernel code: net: ethernet: ti: am65-cpsw-nuss: Fix rx_filter value for PTP support | Problem Details:
The "rx_filter" member of "hwtstamp_config" structure is an enum field and
does not support bitwise OR combination of multiple filter values. It
causes error while linuxptp application tries to match rx filter version.
Fix this by storing the requested filter type in a new port field.
Fixes: 97248adb5... | ```diff
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 967918050433..265ce5479915 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1351,7 +1351,7 @@ static int am65_cpsw_nuss_rx_packets(struct am65_cpsw_rx_fl... |
87c2302813abc55c46485711a678e3c312b00666 | Analyze and fix the following issue in the Linux kernel code: net/mana: Null service_wq on setup error to prevent double destroy | Problem Details:
In mana_gd_setup() error path, set gc->service_wq to NULL after
destroy_workqueue() to match the cleanup in mana_gd_cleanup().
This prevents a use-after-free if the workqueue pointer is checked
after a failed setup.
Fixes: f975a0955276 ("net: mana: Fix double destroy_workqueue on service rescan PCI pa... | ```diff
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 37d2f108a839..786186c9a115 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -1934,6 +1934,7 @@ remove_irq:
mana_gd_remove_ir... |
f0bd19316663710de157e85afd62058312aa97e1 | Analyze and fix the following issue in the Linux kernel code: selftests: net: fix timeout passed as positional argument to communicate() | Problem Details:
The cited commit refactored the hardcoded timeout=5 into a parameter,
but dropped the keyword from the communicate() call.
Since Popen.communicate()'s first positional argument is 'input' (not
'timeout'), the timeout value is silently treated as stdin input and the
call never enforces a timeout.
Pass ... | ```diff
diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py
index a6d7fe15e6e4..17adc2b67ee0 100644
--- a/tools/testing/selftests/net/lib/py/utils.py
+++ b/tools/testing/selftests/net/lib/py/utils.py
@@ -93,7 +93,7 @@ class cmd:
def _process_terminate(self, termin... |
82562972b85469e23fb787f78c1dea6ad6b16af4 | Analyze and fix the following issue in the Linux kernel code: selftests: net: pass bpftrace timeout to cmd() | Problem Details:
The bpftrace() helper configures an interval based exit timer but does
not propagate the timeout to the cmd object, which defaults to 5
seconds. Since the default BPFTRACE_TIMEOUT is 10 seconds, cmd.process()
always raises a TimeoutExpired exception before bpftrace has a chance to
exit gracefully.
Pas... | ```diff
diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py
index 5ffd9fb2a8ce..a6d7fe15e6e4 100644
--- a/tools/testing/selftests/net/lib/py/utils.py
+++ b/tools/testing/selftests/net/lib/py/utils.py
@@ -258,8 +258,9 @@ def bpftrace(expr, json=None, ns=None, host=None,... |
cbada1048847a348797aec63a1d8056621cbe653 | Analyze and fix the following issue in the Linux kernel code: neighbour: restore protocol != 0 check in pneigh update | Problem Details:
Prior to commit dc2a27e524ac ("neighbour: Update pneigh_entry in
pneigh_create()."), a pneigh's protocol was updated only when the
value of the NDA_PROTOCOL attribute was non-0. While moving the code,
that check was removed. This is a small change of user-visible
behavior, and inconsistent with the (no... | ```diff
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index a95cfe77f7f0..c56a4e7bf790 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -820,7 +820,8 @@ int pneigh_create(struct neigh_table *tbl, struct net *net,
update:
WRITE_ONCE(n->flags, flags);
n->permanent = permanent;
- WRITE_ONCE(... |
e8f0dc024ce55451ebd54bad975134ba802e4fcc | Analyze and fix the following issue in the Linux kernel code: net: dsa: realtek: Fix LED group port bit for non-zero LED group | Problem Details:
The rtl8366rb_led_group_port_mask() function always returns LED port
bit in LED group 0; the switch statement returns the same thing in all
non-default cases.
This means that the driver does not currently support configuring LEDs
in non-zero LED groups.
Fix this.
Fixes: 32d617005475a71e ("net: dsa: ... | ```diff
diff --git a/drivers/net/dsa/realtek/rtl8366rb-leds.c b/drivers/net/dsa/realtek/rtl8366rb-leds.c
index 99c890681ae6..509ffd3f8db5 100644
--- a/drivers/net/dsa/realtek/rtl8366rb-leds.c
+++ b/drivers/net/dsa/realtek/rtl8366rb-leds.c
@@ -12,11 +12,11 @@ static inline u32 rtl8366rb_led_group_port_mask(u8 led_group,... |
6c5a9baa15de240e747263aba435a0951da8d8d2 | Analyze and fix the following issue in the Linux kernel code: tipc: fix divide-by-zero in tipc_sk_filter_connect() | Problem Details:
A user can set conn_timeout to any value via
setsockopt(TIPC_CONN_TIMEOUT), including values less than 4. When a
SYN is rejected with TIPC_ERR_OVERLOAD and the retry path in
tipc_sk_filter_connect() executes:
delay %= (tsk->conn_timeout / 4);
If conn_timeout is in the range [0, 3], the integer d... | ```diff
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 4c618c2b871d..9329919fb07f 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2233,6 +2233,8 @@ static bool tipc_sk_filter_connect(struct tipc_sock *tsk, struct sk_buff *skb,
if (skb_queue_empty(&sk->sk_write_queue))
break;
get_random_by... |
99c8c16a4aad0b37293cae213e15957c573cf79b | Analyze and fix the following issue in the Linux kernel code: net: dsa: microchip: Fix error path in PTP IRQ setup | Problem Details:
If request_threaded_irq() fails during the PTP message IRQ setup, the
newly created IRQ mapping is never disposed. Indeed, the
ksz_ptp_irq_setup()'s error path only frees the mappings that were
successfully set up.
Dispose the newly created mapping if the associated
request_threaded_irq() fails at set... | ```diff
diff --git a/drivers/net/dsa/microchip/ksz_ptp.c b/drivers/net/dsa/microchip/ksz_ptp.c
index 4a2cc57a628f..8b98039320ad 100644
--- a/drivers/net/dsa/microchip/ksz_ptp.c
+++ b/drivers/net/dsa/microchip/ksz_ptp.c
@@ -1108,6 +1108,7 @@ static int ksz_ptp_msg_irq_setup(struct ksz_port *port, u8 n)
const struct ks... |
d56b5d163458c45ab8fa1f00bd875af01b3ce28c | Analyze and fix the following issue in the Linux kernel code: bpf: bpf_out_neigh_v6: Fix nd_tbl NULL dereference when IPv6 is disabled | Problem Details:
When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never
initialized because inet6_init() exits before ndisc_init() is called which
initializes it. If bpf_redirect_neigh() is called with explicit AF_INET6
nexthop parameters, __bpf_redirect_neigh_v6() can skip the IPv6 FIB lookup
and call b... | ```diff
diff --git a/net/core/filter.c b/net/core/filter.c
index fd38b6f8b7a8..78b548158fb0 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2228,6 +2228,9 @@ static int bpf_out_neigh_v6(struct net *net, struct sk_buff *skb,
return -ENOMEM;
}
+ if (unlikely(!ipv6_mod_enabled()))
+ goto out_drop;
+
... |
dcb4e2231469523d20cf0a2477d68245795c205d | Analyze and fix the following issue in the Linux kernel code: bpf: bpf_out_neigh_v4: Fix nd_tbl NULL dereference when IPv6 is disabled | Problem Details:
When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never
initialized because inet6_init() exits before ndisc_init() is called which
initializes it. If bpf_redirect_neigh() is called from tc with an explicit
nexthop of nh_family == AF_INET6, bpf_out_neigh_v4() takes the AF_INET6
branch and ... | ```diff
diff --git a/net/core/filter.c b/net/core/filter.c
index a77d23fe2359..fd38b6f8b7a8 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2335,6 +2335,10 @@ static int bpf_out_neigh_v4(struct net *net, struct sk_buff *skb,
neigh = ip_neigh_for_gw(rt, skb, &is_v6gw);
} else if (nh->nh_family == AF_IN... |
30021e969d48e5819d5ae56936c2f34c0f7ce997 | Analyze and fix the following issue in the Linux kernel code: net: bonding: Fix nd_tbl NULL dereference when IPv6 is disabled | Problem Details:
When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never
initialized because inet6_init() exits before ndisc_init() is called
which initializes it. If bonding ARP/NS validation is enabled, an IPv6
NS/NA packet received on a slave can reach bond_validate_na(), which
calls bond_has_this_ip6(... | ```diff
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index c1fb92602e46..707419270ebf 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3428,7 +3428,7 @@ int bond_rcv_validate(const struct sk_buff *skb, struct bonding *bond,
} else if (is_arp) {
... |
94a4b1f959989de9c54d43c3a102fb1ee92e1414 | Analyze and fix the following issue in the Linux kernel code: ipv6: move the disable_ipv6_mod knob to core code | Problem Details:
From: Jakub Kicinski <kuba@kernel.org>
Make sure disable_ipv6_mod itself is not part of the IPv6 module,
in case core code wants to refer to it. We will remove support
for IPv6=m soon, this change helps make fixes we commit before
that less messy.
Link: https://patch.msgid.link/20260307-net-nd_tbl_fi... | ```diff
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 443053a76dcf..a7421382a916 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -333,7 +333,12 @@ struct tcp6_timewait_sock {
};
#if IS_ENABLED(CONFIG_IPV6)
-bool ipv6_mod_enabled(void);
+extern int disable_ipv6_mod;
+
+static inline ... |
40e75e42f49ca54b4ff41f3edb94f5ef0299140c | Analyze and fix the following issue in the Linux kernel code: smb: client: fix open handle lookup in cifs_open() | Problem Details:
When looking up open handles to be re-used in cifs_open(), calling
cifs_get_{writable,readable}_path() is wrong as it will look up for
the first matching open handle, and if @file->f_flags doesn't match,
it will ignore the remaining open handles in
cifsInodeInfo::openFileList that might potentially mat... | ```diff
diff --git a/fs/smb/client/cifsacl.c b/fs/smb/client/cifsacl.c
index f4cb3018a358..c920039d733c 100644
--- a/fs/smb/client/cifsacl.c
+++ b/fs/smb/client/cifsacl.c
@@ -1489,7 +1489,7 @@ struct smb_ntsd *get_cifs_acl(struct cifs_sb_info *cifs_sb,
struct cifsFileInfo *open_file = NULL;
if (inode)
- open_fil... |
d4c7210d2f3ea481a6481f03040a64d9077a6172 | Analyze and fix the following issue in the Linux kernel code: smb: client: fix iface port assignment in parse_server_interfaces | Problem Details:
parse_server_interfaces() initializes interface socket addresses with
CIFS_PORT. When the mount uses a non-default port this overwrites the
configured destination port.
Later, cifs_chan_update_iface() copies this sockaddr into server->dstaddr,
causing reconnect attempts to use the wrong port after ser... | ```diff
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index 7f2d3459cbf9..612057318de2 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -628,6 +628,7 @@ parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf,
struct smb_sockaddr_in6 *p6;
struct cifs_server_iface *... |
f311a05784634febd299f03476b80f3f18489767 | Analyze and fix the following issue in the Linux kernel code: i3c: dw-i3c-master: Set SIR_REJECT in DAT on device attach and reattach | Problem Details:
The DesignWare I3C master controller ACKs IBIs as soon as a valid
Device Address Table (DAT) entry is present. This can create a race
between device attachment (after DAA) and the point where the client
driver enables IBIs via i3c_device_enable_ibi().
Set DEV_ADDR_TABLE_SIR_REJECT in the DAT entry dur... | ```diff
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index d334c217c7a3..d6bdb32397fb 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -1024,7 +1024,7 @@ static int dw_i3c_master_reattach_i3c_dev(struct i3c_dev_desc *dev,
master->free... |
f26ecaa0f0abfe5db173416214098a00d3b7db79 | Analyze and fix the following issue in the Linux kernel code: i3c: master: dw-i3c: Fix missing of_node for virtual I2C adapter | Problem Details:
The DesignWare I3C master driver creates a virtual I2C adapter to
provide backward compatibility with I2C devices. However, the current
implementation does not associate this virtual adapter with any
Device Tree node.
Propagate the of_node from the I3C master platform device to the
virtual I2C adapter... | ```diff
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index d87bde3f7700..d334c217c7a3 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -1659,6 +1659,8 @@ int dw_i3c_common_probe(struct dw_i3c_master *master,
pm_runtime_get_noresume(&p... |
9a258d1336f7ff3add8b92d566d3a421f03bf4d2 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fallback to software reset when bus disable fails | Problem Details:
Disruption of the MIPI I3C HCI controller's internal state can cause
i3c_hci_bus_disable() to fail when attempting to shut down the bus.
In the code paths where bus disable is invoked - bus clean-up and runtime
suspend - the controller does not need to remain operational afterward, so
a full controlle... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index d5e91af7d569..284f3ed7af8c 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -181,6 +181,34 @@ static int i3c_hci_bus_disable(struct i3c_hci *hci)
return ret;
}... |
c6396b835a5e599c4df656112140f065bb544a24 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fix handling of shared IRQs during early initialization | Problem Details:
Shared interrupts may fire unexpectedly, including during periods when the
controller is not yet fully initialized. Commit b9a15012a1452
("i3c: mipi-i3c-hci: Add optional Runtime PM support") addressed this issue
for the runtime-suspended state, but the same problem can also occur before
the bus is ena... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index b98952d12d7c..d5e91af7d569 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -152,6 +152,9 @@ static int i3c_hci_bus_init(struct i3c_master_controller *m)
if (hc... |
e44d2719225e618dde74c7056f8e6949f884095e | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fix race in DMA error handling in interrupt context | Problem Details:
The DMA ring halts whenever a transfer encounters an error. The interrupt
handler previously attempted to detect this situation and restart the ring
if a transfer completed at the same time. However, this restart logic runs
entirely in interrupt context and is inherently racy: it interacts with
other p... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index 4a80671536f0..b98952d12d7c 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -223,10 +223,21 @@ int i3c_hci_process_xfer(struct i3c_hci *hci, struct hci_xfer *xfer... |
7ac45bc68f089887ab3a70358057edb7e6b6084e | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Consolidate common xfer processing logic | Problem Details:
Several parts of the MIPI I3C HCI driver duplicate the same sequence for
queuing a transfer, waiting for completion, and handling timeouts. This
logic appears in five separate locations and will be affected by an
upcoming fix.
Refactor the repeated code into a new helper, i3c_hci_process_xfer(), and
s... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
index 831a261f6c56..75d452d7f6af 100644
--- a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
+++ b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
@@ -331,12 +331,10 @@ static int hci_cmd_v1_daa(struct i3c_hci *hci)
CMD_A0_R... |
b6d586431ae20d5157ee468d0ef62ad26798ef13 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Restart DMA ring correctly after dequeue abort | Problem Details:
The DMA dequeue path attempts to restart the ring after aborting an
in-flight transfer, but the current sequence is incomplete. The controller
must be brought out of the aborted state and the ring control registers
must be programmed in the correct order: first clearing ABORT, then
re-enabling the ring... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index 239a195df7c7..41b83f07fdab 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -600,7 +600,9 @@ static bool hci_dma_dequeue_xfer(struct i3c_hci *hci,
}
/* restart ... |
ec3cfd835f7c4bbd23bc9ad909d2fdc772a578bb | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Add missing TID field to no-op command descriptor | Problem Details:
The internal control command descriptor used for no-op commands includes a
Transaction ID (TID) field, but the no-op command constructed in
hci_dma_dequeue_xfer() omitted it. As a result, the hardware receives a
no-op descriptor without the expected TID.
This bug has gone unnoticed because the TID is... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/cmd.h b/drivers/i3c/master/mipi-i3c-hci/cmd.h
index 1d6dd2c5d01a..b1bf87daa651 100644
--- a/drivers/i3c/master/mipi-i3c-hci/cmd.h
+++ b/drivers/i3c/master/mipi-i3c-hci/cmd.h
@@ -17,6 +17,7 @@
#define CMD_0_TOC W0_BIT_(31)
#define CMD_0_ROC W0_BIT_(30)
#define ... |
b795e68bf3073d67bebbb5a44d93f49efc5b8cc7 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue | Problem Details:
The logic used to abort the DMA ring contains several flaws:
1. The driver unconditionally issues a ring abort even when the ring has
already stopped.
2. The completion used to wait for abort completion is never
re-initialized, resulting in incorrect wait behavior.
3. The abort sequence uni... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index d7840ff69e59..a3e8e01a35c9 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -546,18 +546,25 @@ static bool hci_dma_dequeue_xfer(struct i3c_hci *hci,
struct hci_rh_d... |
f0b5159637ca0b8feaaa95de0f5ea38f1ba26729 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fix race between DMA ring dequeue and interrupt handler | Problem Details:
The DMA ring bookkeeping in the MIPI I3C HCI driver is updated from two
contexts: the DMA ring dequeue path (hci_dma_dequeue_xfer()) and the
interrupt handler (hci_dma_xfer_done()). Both modify the ring's
in-flight transfer state - specifically rh->src_xfers[] and
xfer->ring_entry - but without any se... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index 061e84a5c412..adf35b7fa498 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -567,6 +567,8 @@ static irqreturn_t i3c_hci_irq_handler(int irq, void *dev_id)
irqre... |
1dca8aee80eea76d2aae21265de5dd64f6ba0f09 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue | Problem Details:
The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for
multiple transfers that timeout around the same time. However, the
function is not serialized and can race with itself.
When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes
incomplete transfers, and then restarts ... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index faf5eae2409f..061e84a5c412 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -927,6 +927,7 @@ static int i3c_hci_probe(struct platform_device *pdev)
return -ENO... |
4decbbc8a8cf0a69ab011d7c2c88ed3cd0a00ddd | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fix race in DMA ring enqueue for parallel xfers | Problem Details:
The I3C subsystem allows multiple transfers to be queued concurrently.
However, the MIPI I3C HCI driver's DMA enqueue path, hci_dma_queue_xfer(),
lacks sufficient serialization.
In particular, the allocation of the enqueue_ptr and its subsequent update
in the RING_OPERATION1 register, must be done ato... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index 2442cedd5c2a..74b255ad6d0f 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -129,7 +129,7 @@ struct hci_rh_data {
dma_addr_t xfer_dma, resp_dma, ibi_status_dma, ibi... |
fa12bb903bc3ed1826e355d267fe134bde95e23c | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Consolidate spinlocks | Problem Details:
The MIPI I3C HCI driver currently uses separate spinlocks for different
contexts (PIO vs. DMA rings). This split is unnecessary and complicates
upcoming fixes. The driver does not support concurrent PIO and DMA
operation, and it only supports a single DMA ring, so a single lock is
sufficient for all ... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index 4877a321edf9..faf5eae2409f 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -926,6 +926,8 @@ static int i3c_hci_probe(struct platform_device *pdev)
if (!hci)
... |
f3bcbfe1b8b0b836b772927f75f8cb6e759eb00a | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Factor out DMA mapping from queuing path | Problem Details:
Prepare for fixing a race in the DMA ring enqueue path when handling
parallel transfers. Move all DMA mapping out of hci_dma_queue_xfer()
and into a new helper that performs the mapping up front.
This refactoring allows the upcoming fix to extend the spinlock coverage
around the enqueue operation wit... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index b903a2da1fd1..ba451f026386 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -439,6 +439,33 @@ static void hci_dma_unmap_xfer(struct i3c_hci *hci,
}
}
+static str... |
fa9586bd77ada1e3861c7bef65f6bb9dcf8d9481 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Fix Hot-Join NACK | Problem Details:
The MIPI I3C HCI host controller driver does not implement Hot-Join
handling, yet Hot-Join response control defaults to allowing devices to
Hot-Join the bus. Configure HC_CONTROL_HOT_JOIN_CTRL to NACK all Hot-Join
attempts.
Fixes: 9ad9a52cce282 ("i3c/master: introduce the mipi-i3c-hci driver")
Cc: st... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index dbe93df0c70e..4877a321edf9 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -152,7 +152,8 @@ static int i3c_hci_bus_init(struct i3c_master_controller *m)
if (hc... |
4167b8914463132654e01e16259847d097f8a7f7 | Analyze and fix the following issue in the Linux kernel code: i3c: mipi-i3c-hci: Use ETIMEDOUT instead of ETIME for timeout errors | Problem Details:
The MIPI I3C HCI driver currently returns -ETIME for various timeout
conditions, while other I3C master drivers consistently use -ETIMEDOUT
for the same class of errors. Align the HCI driver with the rest of the
subsystem by replacing all uses of -ETIME with -ETIMEDOUT.
Fixes: 9ad9a52cce282 ("i3c/mas... | ```diff
diff --git a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
index fe260461e7e6..831a261f6c56 100644
--- a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
+++ b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
@@ -334,7 +334,7 @@ static int hci_cmd_v1_daa(struct i3c_hci *hci)
hci->io->qu... |
bd377af0970164a4d12479bf36049619201be2f0 | Analyze and fix the following issue in the Linux kernel code: sched_ext: Fix incomplete help text usage strings | Problem Details:
Several demo schedulers and the selftest runner had usage strings
that omitted options which are actually supported:
- scx_central: add missing [-v]
- scx_pair: add missing [-v]
- scx_qmap: add missing [-S] and [-H]
- scx_userland: add missing [-v]
- scx_sdt: remove [-f] which no longer exists
- runne... | ```diff
diff --git a/tools/sched_ext/scx_central.c b/tools/sched_ext/scx_central.c
index 710fa03376e2..fd4c0eaa4326 100644
--- a/tools/sched_ext/scx_central.c
+++ b/tools/sched_ext/scx_central.c
@@ -21,7 +21,7 @@ const char help_fmt[] =
"\n"
"See the top-level comment in .bpf.c for more details.\n"
"\n"
-"Usage: %s ... |
35b16a7a2c4fc458304447128b86514ce9f70f3c | Analyze and fix the following issue in the Linux kernel code: perf synthetic-events: Fix stale build ID in module MMAP2 records | Problem Details:
perf_event__synthesize_modules() allocates a single union perf_event and
reuses it across every kernel module callback.
After the first module is processed, perf_record_mmap2__read_build_id()
sets PERF_RECORD_MISC_MMAP_BUILD_ID in header.misc and writes that
module's build ID into the event.
On subse... | ```diff
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index ef79433ebc3a..ddf1cbda1902 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -703,6 +703,11 @@ static int perf_event__synthesize_modules_maps_cb(struct map *map, void *data)
... |
bb4d28e377cf04fbee8a01322059fa14808cdfe9 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm6125: Add missing MDSS core reset | Problem Details:
To make sure the display subsystem starts in a predictable state, we
need to reset it. Otherwise, unpredictable issues can happen, e.g.
on the xiaomi-laurel-sprout smartphone DSI would not work on boot.
Wire up the reset to fix.
Fixes: 0865d23a0226 ("arm64: dts: qcom: sm6125: Add display hardware nod... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qcom/sm6125.dtsi
index 80c42dff5399..a22374e5a17f 100644
--- a/arch/arm64/boot/dts/qcom/sm6125.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi
@@ -1238,6 +1238,8 @@
"ahb",
"core";
+ resets = <&dispcc DISP_CC_MDSS_C... |
1cc317d4188ba2d72c298b5271fb4a2fa1d84c29 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm6115: Add missing MDSS core reset | Problem Details:
To make sure the display subsystem starts in a predictable state, we
need to reset it. Otherwise, unpredictable issues can happen, e.g.
on the motorola-guamp smartphone DSI would not transmit anything.
Wire up the reset to fix.
Fixes: 705e50427d81 ("arm64: dts: qcom: sm6115: Add mdss/dpu node")
Revie... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
index e9336adbc391..3a9a1ad8d581 100644
--- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
@@ -1864,6 +1864,8 @@
<&gcc GCC_DISP_HF_AXI_CLK>,
<&dispcc DISP_CC_MDSS_MDP_CLK>;
+... |
6f02c6b196036dbb6defb4647d8707d29b7fe95b | Analyze and fix the following issue in the Linux kernel code: io_uring: fix physical SQE bounds check for SQE_MIXED 128-byte ops | Problem Details:
When IORING_SETUP_SQE_MIXED is used without IORING_SETUP_NO_SQARRAY,
the boundary check for 128-byte SQE operations in io_init_req()
validated the logical SQ head position rather than the physical SQE
index.
The existing check:
!(ctx->cached_sq_head & (ctx->sq_entries - 1))
ensures the logical pos... | ```diff
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 20fdc442e014..20ec8fdafcae 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1745,7 +1745,7 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req,
* well as 2 contiguous entries.
*/
if (!(ctx->flags & IORING_S... |
177c69432161f6e4bab07ccacf8a1748a6898a6b | Analyze and fix the following issue in the Linux kernel code: io_uring/eventfd: use ctx->rings_rcu for flags checking | Problem Details:
Similarly to what commit e78f7b70e837 did for local task work additions,
use ->rings_rcu under RCU rather than dereference ->rings directly. See
that commit for more details.
Cc: stable@vger.kernel.org
Fixes: 79cfe9e59c2a ("io_uring/register: add IORING_REGISTER_RESIZE_RINGS")
Signed-off-by: Jens Axbo... | ```diff
diff --git a/io_uring/eventfd.c b/io_uring/eventfd.c
index 78f8ab7db104..ab789e1ebe91 100644
--- a/io_uring/eventfd.c
+++ b/io_uring/eventfd.c
@@ -76,11 +76,15 @@ void io_eventfd_signal(struct io_ring_ctx *ctx, bool cqe_event)
{
bool skip = false;
struct io_ev_fd *ev_fd;
-
- if (READ_ONCE(ctx->rings->cq_fl... |
96189080265e6bb5dde3a4afbaf947af493e3f82 | Analyze and fix the following issue in the Linux kernel code: io_uring: ensure ctx->rings is stable for task work flags manipulation | Problem Details:
If DEFER_TASKRUN | SETUP_TASKRUN is used and task work is added while
the ring is being resized, it's possible for the OR'ing of
IORING_SQ_TASKRUN to happen in the small window of swapping into the
new rings and the old rings being freed.
Prevent this by adding a 2nd ->rings pointer, ->rings_rcu, whic... | ```diff
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index 3e4a82a6f817..dd1420bfcb73 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -388,6 +388,7 @@ struct io_ring_ctx {
* regularly bounce b/w CPUs.
*/
struct {
+ struct io_rings __rcu *rings... |
92f7ee408c23fcc074e4952fb6ffacdf3eb86b56 | Analyze and fix the following issue in the Linux kernel code: hrtimer: Less agressive interrupt 'hang' handling | Problem Details:
When the hrtimer_interrupt needs to restart more than 3 times and still has
expired timers, the interrupt is considered hung. To give the system a
little time to recover, the hardware timer is programmed a little into the
future.
Prior to commit 288924384856 ("hrtimer: Re-arrange hrtimer_interrupt()")... | ```diff
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index b94bd56b739f..cafd6771a225 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -2031,8 +2031,8 @@ static void hrtimer_rearm(struct hrtimer_cpu_base *cpu_base, ktime_t expires_nex
* Give the system a chance to do something else th... |
30c64fb9839949f085c8eb55b979cbd8a4c51f00 | Analyze and fix the following issue in the Linux kernel code: ASoC: amd: acp-mach-common: Add missing error check for clock acquisition | Problem Details:
The acp_card_rt5682_init() and acp_card_rt5682s_init() functions did not
check the return values of clk_get(). This could lead to a kernel crash
when the invalid pointers are later dereferenced by clock core
functions.
Fix this by:
1. Changing clk_get() to the device-managed devm_clk_get().
2. Adding ... | ```diff
diff --git a/sound/soc/amd/acp/acp-mach-common.c b/sound/soc/amd/acp/acp-mach-common.c
index 4d99472c75ba..09f6c9a2c041 100644
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -127,8 +127,13 @@ static int acp_card_rt5682_init(struct snd_soc_pcm_runtime *rtd)
if (drvdata->... |
0fed679e0862b3abd706041be3cc7620318fbee8 | Analyze and fix the following issue in the Linux kernel code: RDMA/rdmavt: Correct multi-port QP iteration | Problem Details:
When finding special QPs, the iterator makes an incorrect port
index calculation. Fix the calculation.
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://patch.msgid.link/177308909468.1279894.5073405674... | ```diff
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index c1199ea5d41f..b519d9d0e429 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -2707,7 +2707,7 @@ int rvt_qp_iter_next(struct rvt_qp_iter *iter)
struct rvt_ibport *rvp;
int pi... |
786ee8ddf47a2333aa5ffd16f68a3c0e9c7d1fbf | Analyze and fix the following issue in the Linux kernel code: RDMA/OPA: Update OPA link speed list | Problem Details:
Update the list of available link speeds. Fix comments.
Signed-off-by: Dean Luick <dean.luick@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://patch.msgid.link/177308908456.1279894.16723781060261360236.stgit@awdrv-04.cornelisnetworks.com
... | ```diff
diff --git a/include/rdma/opa_port_info.h b/include/rdma/opa_port_info.h
index 73bcac90a048..fb66d3a1dfa9 100644
--- a/include/rdma/opa_port_info.h
+++ b/include/rdma/opa_port_info.h
@@ -93,9 +93,11 @@
#define OPA_LINKINIT_QUARANTINED (9 << 4)
#define OPA_LINKINIT_INSUFIC_CAPABILITY (10... |
f879365c5bb210ed0d0b0aae1a0202d0c0b4b9d0 | Analyze and fix the following issue in the Linux kernel code: spi: atcspi200: Handle invalid buswidth and fix compiler warning | Problem Details:
The kernel test robot reported a compile-time error regarding the
FIELD_PREP() value being too large for the TRANS_DUAL_QUAD field:
error: FIELD_PREP: value too large for the field
note: in expansion of macro 'TRANS_DUAL_QUAD'
tc |= TRANS_DUAL_QUAD(ffs(op->data.buswidth) - 1);
This occurs becau... | ```diff
diff --git a/drivers/spi/spi-atcspi200.c b/drivers/spi/spi-atcspi200.c
index fef6954d27e1..2665f31a49ce 100644
--- a/drivers/spi/spi-atcspi200.c
+++ b/drivers/spi/spi-atcspi200.c
@@ -195,7 +195,15 @@ static void atcspi_set_trans_ctl(struct atcspi_dev *spi,
if (op->addr.buswidth > 1)
tc |= TRANS_ADDR_FMT;
... |
46b87c37ca4f54a630d988cb24a1aa9a2e5ba1dc | Analyze and fix the following issue in the Linux kernel code: ASoC: dt-bindings: ti,tas2770: Switch to undeprecated reset-gpios | Problem Details:
GPIOs with "gpio" suffix were long time ago deprecated, thus
"reset-gpios" should be used. Linux kernel supports both, thus this
only documents desired choice of ABI.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260311153548.94265-2-krzysz... | ```diff
diff --git a/Documentation/devicetree/bindings/sound/ti,tas2770.yaml b/Documentation/devicetree/bindings/sound/ti,tas2770.yaml
index 8eab98a0f7a2..8d49fbcf0b9b 100644
--- a/Documentation/devicetree/bindings/sound/ti,tas2770.yaml
+++ b/Documentation/devicetree/bindings/sound/ti,tas2770.yaml
@@ -30,7 +30,7 @@ pro... |
56e2ef8f5f9161d08d45656d373da83d4a789be1 | Analyze and fix the following issue in the Linux kernel code: efi: libstub: fix type of fdt 32 and 64bit variables | Problem Details:
In update_fdt_memmap() an update_fdt() the fdt values should be
of the fd32_t and fdt64_t types. Make the relevant changes to
remove the following sparse warnings:
drivers/firmware/efi/libstub/fdt.c:97:19: warning: incorrect type in assignment (different base types)
drivers/firmware/efi/libstub/fdt.c:... | ```diff
diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index 6a337f1f8787..23b3543d3041 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -32,8 +32,8 @@ static efi_status_t update_fdt(void *orig_fdt, unsigned long orig_fdt_size,
{
int no... |
d7bd8cf0b348d3edae7bee33e74a32b21668b181 | Analyze and fix the following issue in the Linux kernel code: ima_fs: Correctly create securityfs files for unsupported hash algos | Problem Details:
ima_tpm_chip->allocated_banks[i].crypto_id is initialized to
HASH_ALGO__LAST if the TPM algorithm is not supported. However there
are places relying on the algorithm to be valid because it is accessed
by hash_algo_name[].
On 6.12.40 I observe the following read out-of-bounds in hash_algo_name:
=====... | ```diff
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 23d3a14b8ce3..ca4931a95098 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -398,16 +398,24 @@ static int __init create_securityfs_measurement_lists(void)
char file_name[NAME_MAX + 1];
... |
dca01b0a264642929732c4db4a07e7b213304c15 | Analyze and fix the following issue in the Linux kernel code: Documentation: kvm: fix formatting of the quirks table | Problem Details:
A recently added quirk does not fit in the left column of the table,
so it all has to be reformatted and realigned.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | ```diff
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 19365b284395..032516783e96 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -8435,123 +8435,123 @@ KVM_CHECK_EXTENSION.
The valid bits in cap.args[0] are:
-=================================... |
2ce75a0b7e1bfddbcb9bc8aeb2e5e7fa99971acf | Analyze and fix the following issue in the Linux kernel code: drm/amdkfd: Unreserve bo if queue update failed | Problem Details:
Error handling path should unreserve bo then return failed.
Fixes: 305cd109b761 ("drm/amdkfd: Validate user queue update")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ... | ```diff
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 8ea31699d38b..f5d2847e1cbb 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -593,6 +593,7 @@ int p... |
becbab4a5a02156000f3aaff8bb70e8fd3e0d4cf | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Check for S0i3 to be done before DCCG init on DCN21 | Problem Details:
[WHY]
On DCN21, dccg2_init() is called in dcn10_init_hw() before
bios_golden_init(). During S0i3 resume, BIOS sets MICROSECOND_TIME_BASE_DIV
to 0x00120464 as a marker. dccg2_init() overwrites this to 0x00120264,
causing dcn21_s0i3_golden_init_wa() to misdetect the state and skip golden
init.
Eventually... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c b/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c
index 75c69348027e..c4d4eea140f3 100644
--- a/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c
@@ -96,6 +96,25 @@ static... |
33efc6346e8cf75219673fe1ca1916ab40643728 | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Add missing DCCG register entries for DCN20-DCN316 | Problem Details:
Commit 4c595e75110e ("drm/amd/display: Migrate DCCG registers access
from hwseq to dccg component.") moved register writes from hwseq to
dccg2_*() functions but did not add the registers to the DCCG register
list macros. The struct fields default to 0, so REG_WRITE() targets
MMIO offset 0, causing a GP... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/dccg/dcn20/dcn20_dccg.h b/drivers/gpu/drm/amd/display/dc/dccg/dcn20/dcn20_dccg.h
index 3711d400773a..4c4e61bc91b5 100644
--- a/drivers/gpu/drm/amd/display/dc/dccg/dcn20/dcn20_dccg.h
+++ b/drivers/gpu/drm/amd/display/dc/dccg/dcn20/dcn20_dccg.h
@@ -38,7 +38,11 @@
DCCG... |
da16822ce5c32b5aca848eaea521936d4410d48c | Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: Fix xgmi max speed reporting | Problem Details:
Fix XGMI max bitrate/width reporting on SMUv13.0.12 SOCs. The data
format got changed when moved to static table from dynamic metrics
table.
Fixes: 1bec2f270766 ("drm/amd/pm: Fetch SMUv13.0.12 xgmi max speed/width")
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd... | ```diff
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c
index 8610f3da514f..54a86eb77cd5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c
@@ -269,8 +269,9 @@ static vo... |
418b4e397570f1b0ffb6d5c8aa0872bc33071d49 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix array out of bounds accesses for mes sw_fini | Problem Details:
The mes.fw[] is per-pipe resource shared accross xcc inst.
And enlarge hung_queue array to max inst_pipes.
Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index bcf2a067dc41..f80e3aca9c78 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -159,9 +159,9 @@ struct amdgpu_mes {
int hung_queue_db_array_size;
int ... |
cbbf33396c5b4b54e28e9865a28090eca7a13173 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix sysfs ip base addr with 64bit | Problem Details:
Correct the base addr value shown on sysfs with ignore reg_base_64,
since the base_addr value have been over write when discovery_init.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 5f8f0c841666..f9f785c5d8ac 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -1215,13 +1215,8 @@ static int amdgpu_discovery_sysfs_ips(... |
1394a4926f4bcff0dc6ac6deea5beeb2844297f0 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix shift-out-of-bounds when updating umc active mask | Problem Details:
UMC node_inst_num can exceed 32, causing
(1 << node_inst_num) to shift a 32-bit int
out of bounds
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 2669b0346a60..5f8f0c841666 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -793,7 +793,7 @@ static void amdgpu_discovery_read_from_ha... |
3ebe58535898cb0a842390ecde79b5bc63a5b777 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: update GFX CGCG/LS flags for gfx 12.1 | Problem Details:
Update GFX CGCG flags and fix num_xcc assignment
Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/soc_v1_0.c b/drivers/gpu/drm/amd/amdgpu/soc_v1_0.c
index 43209eae81bb..a0e10dbf0733 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc_v1_0.c
@@ -281,7 +281,8 @@ static int soc_v1_0_common_early_init(struct amdgpu_ip_block *ip_block)
... |
50808826a64b4957b7088c789e539dd0a75a1560 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix DF NULL pointer issue for soc24 | Problem Details:
If DF function not initialized, NULL pointer issue
will happen on soc24.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/soc24.c b/drivers/gpu/drm/amd/amdgpu/soc24.c
index 308f32daa780..d1adf19a51c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc24.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc24.c
@@ -478,7 +478,7 @@ static int soc24_common_hw_init(struct amdgpu_ip_block *ip_block)
if (adev->nbio.fu... |
c24afed7de9ecce341825d8ab55a43a254348b33 | Analyze and fix the following issue in the Linux kernel code: drm/amdkfd: Unreserve bo if queue update failed | Problem Details:
Error handling path should unreserve bo then return failed.
Fixes: 305cd109b761 ("drm/amdkfd: Validate user queue update")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> | ```diff
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 586d409ebe4e..cc2621ae12f9 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -593,6 +593,7 @@ int p... |
78aad33088dd7fc3e222d387a272b2e50dec3fb9 | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Promote DC to 3.2.373 | Problem Details:
This version brings along the following updates:
- [FW Promotion] Release 0.1.50.0
- Sync DCN42 with DC 3.2.373
- Add DML support for dcn42
- Enable dcn42 DC clk_mgr
- Clean up unused code
- Add back missing memory type in array
- Fix compile warnings in dml2_0
- Check for S0i3 to be done before DCCG ... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 8c49f8083475..c7a09724f569 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -63,7 +63,7 @@ struct dcn_dsc_reg_state;
struct dcn_optc_reg_state;
struct dcn_dccg_reg_state;
... |
a28076422b0b1dc640471e4905d9c3a360b10a08 | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Fix compile warnings in dml2_0 | Problem Details:
Fix static analysis warnings by ensuring swath size temporaries
are initialized before use. No functional change intended.
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Gaghik Khachatrian <gaghik.khachatrian@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheel... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/display_mode_core.c b/drivers/gpu/drm/amd/display/dc/dml2_0/display_mode_core.c
index 09303c282495..8e8935995fca 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2_0/display_mode_core.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2_0/display_mode_core.c
@@ -4089,8 +4... |
c61eda434336cf2c033aa35efdc9a08b31d2fdfa | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Check for S0i3 to be done before DCCG init on DCN21 | Problem Details:
[WHY]
On DCN21, dccg2_init() is called in dcn10_init_hw() before
bios_golden_init(). During S0i3 resume, BIOS sets MICROSECOND_TIME_BASE_DIV
to 0x00120464 as a marker. dccg2_init() overwrites this to 0x00120264,
causing dcn21_s0i3_golden_init_wa() to misdetect the state and skip golden
init.
Eventually... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c b/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c
index 75c69348027e..c4d4eea140f3 100644
--- a/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dccg/dcn21/dcn21_dccg.c
@@ -96,6 +96,25 @@ static... |
ca0f39a369c5f927c3d004e63a5a778b08a9df94 | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Fix const qualifier warning in fexit_bpf2bpf.c | Problem Details:
Building selftests with
clang 23.0.0 (6fae863eba8a72cdd82f37e7111a46a70be525e0) triggers
the following error:
tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c:117:12:
error: assigning to 'char *' from 'const char *' discards qualifiers
[-Werror,-Wincompatible-pointer-types-discards-qualifi... | ```diff
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
index 23d933f1aec6..92c20803ea76 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
@@ -111,7 +111,7 @@ stati... |
87d0f901a9bd8ae6be57249c737f20ac0cace93d | Analyze and fix the following issue in the Linux kernel code: KVM: SVM: Set/clear CR8 write interception when AVIC is (de)activated | Problem Details:
Explicitly set/clear CR8 write interception when AVIC is (de)activated to
fix a bug where KVM leaves the interception enabled after AVIC is
activated. E.g. if KVM emulates INIT=>WFS while AVIC is deactivated, CR8
will remain intercepted in perpetuity.
On its own, the dangling CR8 intercept is "just" ... | ```diff
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index 44e07c27b190..f7ec7914e3c4 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -189,12 +189,12 @@ static void avic_activate_vmcb(struct vcpu_svm *svm)
struct kvm_vcpu *vcpu = &svm->vcpu;
vmcb->control.int_ctl &= ~(AVIC_... |
3989a6d036c8ec82c0de3614bed23a1dacd45de5 | Analyze and fix the following issue in the Linux kernel code: KVM: SVM: Initialize AVIC VMCB fields if AVIC is enabled with in-kernel APIC | Problem Details:
Initialize all per-vCPU AVIC control fields in the VMCB if AVIC is enabled
in KVM and the VM has an in-kernel local APIC, i.e. if it's _possible_ the
vCPU could activate AVIC at any point in its lifecycle. Configuring the
VMCB if and only if AVIC is active "works" purely because of optimizations
in kv... | ```diff
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index f92214b1a938..44e07c27b190 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -368,7 +368,7 @@ void avic_init_vmcb(struct vcpu_svm *svm, struct vmcb *vmcb)
vmcb->control.avic_physical_id = __sme_set(__pa(kvm_svm->avic_phys... |
e2ffe85b6d2bb7780174b87aa4468a39be17eb81 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Introduce KVM_X86_QUIRK_VMCS12_ALLOW_FREEZE_IN_SMM | Problem Details:
Add KVM_X86_QUIRK_VMCS12_ALLOW_FREEZE_IN_SMM to allow L1 to set
FREEZE_IN_SMM in vmcs12's GUEST_IA32_DEBUGCTL field, as permitted
prior to commit 6b1dd26544d0 ("KVM: VMX: Preserve host's
DEBUGCTLMSR_FREEZE_IN_SMM while running the guest"). Enable the quirk
by default for backwards compatibility (like ... | ```diff
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 6f85e1b321dd..19365b284395 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -8543,6 +8543,14 @@ KVM_X86_QUIRK_IGNORE_GUEST_PAT By default, on Intel platforms, KVM ignores
... |
b54e4707a64be93a8ab3348e32e89817229b5eaa | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Fix SRCU list traversal in kvm_fire_mask_notifiers() | Problem Details:
The mask_notifier_list is protected by kvm->irq_srcu, but the traversal
in kvm_fire_mask_notifiers() incorrectly uses hlist_for_each_entry_rcu().
This leads to lockdep warnings because the standard RCU iterator expects
to be under rcu_read_lock(), not SRCU.
Replace the RCU variant with hlist_for_each_... | ```diff
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index bb257793b6cb..eed96ff6e722 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -321,7 +321,8 @@ void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
idx = srcu_read_lock(&kvm->irq_srcu);
gsi = kvm_irq_map... |
f78e627a01bd4ec0219566d2c9c40f3c3614f875 | Analyze and fix the following issue in the Linux kernel code: KVM: VMX: Fix a wrong MSR update in add_atomic_switch_msr() | Problem Details:
The previous change had a bug to update a guest MSR with a host value.
Fixes: c3d6a7210a4de9096 ("KVM: VMX: Dedup code for adding MSR to VMCS's auto list")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://patch.msgid.link/2026022022021... | ```diff
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 967b58a8ab9d..83d057cfa816 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1149,7 +1149,7 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr,
}
vmx_add_auto_msr(&m->guest, msr, guest_val, VM_ENTRY_... |
a5264387c2ee42fca92ac792199008fc60ee82f1 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: hyper-v: Validate all GVAs during PV TLB flush | Problem Details:
In KVM guests with Hyper-V hypercalls enabled, the hypercalls
HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST and HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX
allow a guest to request invalidation of portions of a virtual TLB.
For this, the hypercall parameter includes a list of GVAs that are supposed
to be invalidated.
Cu... | ```diff
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 30202942289a..9b140bbdc1d8 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1981,16 +1981,17 @@ int kvm_hv_vcpu_flush_tlb(struct kvm_vcpu *vcpu)
if (entries[i] == KVM_HV_TLB_FLUSHALL_ENTRY)
goto out_flush_all;
- if (is_... |
4b3b8a8b0df1a5e7a1af04ff512df2c80db35dc8 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: synthesize CPUID bits only if CPU capability is set | Problem Details:
KVM incorrectly synthesizes CPUID bits for KVM-only leaves, as the
following branch in kvm_cpu_cap_init() is never taken:
if (leaf < NCAPINTS)
kvm_cpu_caps[leaf] &= kernel_cpu_caps[leaf];
This means that bits set via SYNTHESIZED_F() for KVM-only leaves are
unconditionally set. This for ex... | ```diff
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index d2486506a808..8137927e7387 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -776,7 +776,10 @@ do { \
#define SYNTHESIZED_F(name) \
({ \
kvm_cpu_cap_synthesized |= feature_bit(name); \
- F(name); \
+ ... |
4c0134639694fcdc4ab041d7c53d6188a3e18040 | Analyze and fix the following issue in the Linux kernel code: KVM: PPC: e500: Fix build error due to using kmalloc_obj() with wrong type | Problem Details:
Fix a build error in kvmppc_e500_tlb_init() that was introduced by the
conversion to use kzalloc_objs(), as KVM confusingly uses the size of the
structure that is one and only field in tlbe_priv:
arch/powerpc/kvm/e500_mmu.c:923:33: error: assignment to 'struct tlbe_priv *'
from incompatible poin... | ```diff
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index 48580c85f23b..75ed1496ead5 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -920,12 +920,12 @@ int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
vcpu_e500->gtlb_offset[0] = 0;
vcpu_e500->gtlb... |
cf534a09fb621b0aa875613e3cd88aee336e16d7 | Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Increase 'maxnode' for guest_memfd tests | Problem Details:
Increase 'maxnode' when using 'get_mempolicy' syscall in guest_memfd
mmap and NUMA policy tests to fix a failure on one Intel GNR platform.
On a CXL-capable platform, the memory affinity of CXL memory regions may
not be covered by the SRAT. Since each CXL memory region is enumerated
via a CFMWS table... | ```diff
diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing/selftests/kvm/guest_memfd_test.c
index 618c937f3c90..cc329b57ce2e 100644
--- a/tools/testing/selftests/kvm/guest_memfd_test.c
+++ b/tools/testing/selftests/kvm/guest_memfd_test.c
@@ -80,7 +80,7 @@ static void test_mbind(int fd, size_t t... |
ce6a2badf58170bcf73489cd73981bb5775c1e22 | Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Fix out-of-tree build for nVHE/pKVM tracing | Problem Details:
simple_ring_buffer.c is located in the source tree and isn't duplicated
to objtree. Fix its include path.
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Link: https://patch.msgid.link/20260311164956.1424119-1-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org> | ```diff
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 143d55ec7298..3d33fbefdfc1 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -33,7 +33,7 @@ hyp-obj-$(CONFIG_NVHE_EL2_TRACING) += clock.o trace.o events.o
hyp-obj-y += $(lib-objs)
# P... |
464b1c115852fe025635ae2065e00caced184d92 | Analyze and fix the following issue in the Linux kernel code: slab: fix memory leak when refill_sheaf() fails | Problem Details:
When refill_sheaf() partially fills one sheaf (e.g., fills 5 objects
but need to fill 10), it will update sheaf->size and return -ENOMEM.
However, the callers (alloc_full_sheaf() and __pcs_replace_empty_main())
directly call free_empty_sheaf() on failure, which only does kfree(sheaf),
causing the parti... | ```diff
diff --git a/mm/slub.c b/mm/slub.c
index 6371838d2352..2b2d33cc735c 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2790,6 +2790,7 @@ static void free_empty_sheaf(struct kmem_cache *s, struct slab_sheaf *sheaf)
if (s->flags & SLAB_KMALLOC)
mark_obj_codetag_empty(sheaf);
+ VM_WARN_ON_ONCE(sheaf->size > 0);
k... |
3fde5281b805370a6c3bd2ef462ebff70a0ea2c6 | Analyze and fix the following issue in the Linux kernel code: x86/hyperv: Use __naked attribute to fix stackless C function | Problem Details:
hv_crash_c_entry() is a C function that is entered without a stack,
and this is only allowed for functions that have the __naked attribute,
which informs the compiler that it must not emit the usual prologue and
epilogue or emit any other kind of instrumentation that relies on a
stack frame.
So split ... | ```diff
diff --git a/arch/x86/hyperv/hv_crash.c b/arch/x86/hyperv/hv_crash.c
index 92da1b4f2e73..fdb277bf73d8 100644
--- a/arch/x86/hyperv/hv_crash.c
+++ b/arch/x86/hyperv/hv_crash.c
@@ -107,14 +107,12 @@ static void __noreturn hv_panic_timeout_reboot(void)
cpu_relax();
}
-/* This cannot be inlined as it needs st... |
aa181c7d642cf10c31d53f73754795b6e5d88785 | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: drop serial restriction | Problem Details:
Patch 1/2 added PID filtering to the probe_user BPF program to avoid
cross-test interference from the global connect() hooks.
With the interference removed, drop the serial_ prefix and remove the
stale TODO comment so the test can run in parallel.
Tested:
./test_progs -t probe_user -v
./test_prog... | ```diff
diff --git a/tools/testing/selftests/bpf/prog_tests/probe_user.c b/tools/testing/selftests/bpf/prog_tests/probe_user.c
index b3e17a329cb4..7a9d13aa2c87 100644
--- a/tools/testing/selftests/bpf/prog_tests/probe_user.c
+++ b/tools/testing/selftests/bpf/prog_tests/probe_user.c
@@ -1,8 +1,7 @@
// SPDX-License-Iden... |
ca5848ae87d24886a7886f5a22278bd4045c15f8 | Analyze and fix the following issue in the Linux kernel code: jfs: hold LOG_LOCK on umount to avoid null-ptr-deref | Problem Details:
write_special_inodes() function iterate through the log->sb_list and
access the sbi fields, which can be set to NULL concurrently by umount.
Fix concurrency issue by holding LOG_LOCK and checking for NULL.
Reported-by: syzbot+e14b1036481911ae4d77@syzkaller.appspotmail.com
Closes: https://syzkaller.ap... | ```diff
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 472b6500e817..306165e61438 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -74,12 +74,6 @@ static struct lbuf *log_redrive_list;
static DEFINE_SPINLOCK(log_redrive_lock);
-/*
- * log read/write serialization (per log)
- */
-#define ... |
b15e4310633f90072d66cc9b6692acbf6b4d7d00 | Analyze and fix the following issue in the Linux kernel code: jfs: Set the lbmDone flag at the end of lbmIODone | Problem Details:
In lbmRead(), the I/O event waited for by wait_event() finishes before
it goes to sleep, and the lbmIODone() prematurely sets the flag to
lbmDONE, thus ending the wait. This causes wait_event() to return before
lbmREAD is cleared (because lbmDONE was set first), the premature return
of wait_event() lea... | ```diff
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index ada00d5bc214..472b6500e817 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -2180,8 +2180,6 @@ static void lbmIODone(struct bio *bio)
LCACHE_LOCK(flags); /* disable+lock */
- bp->l_flag |= lbmDONE;
-
if (bio->bi_status) {
bp->... |
3c778ec882084626ac915d6c6ec88aff87b82221 | Analyze and fix the following issue in the Linux kernel code: jfs: fix corrupted list in dbUpdatePMap | Problem Details:
This patch resolves the "list_add corruption. next is NULL" Oops
reported by syzkaller in dbUpdatePMap(). The root cause is uninitialized
synclist nodes in struct metapage and struct TxBlock, plus improper list
node removal using list_del() (which leaves nodes in an invalid state).
This fixes the foll... | ```diff
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 64c6eaa7f3f2..78dd8a1b29b7 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -270,6 +270,7 @@ static inline struct metapage *alloc_metapage(gfp_t gfp_mask)
mp->clsn = 0;
mp->log = NULL;
init_waitqueue_head(&mp->wait);
+ I... |
cce219b203c4b9cb445e910c7090d1f58af847c5 | Analyze and fix the following issue in the Linux kernel code: jfs: add dmapctl integrity check to prevent invalid operations | Problem Details:
Add check_dmapctl() to validate dmapctl structure integrity, focusing on
preventing invalid operations caused by on-disk corruption.
Key checks:
- nleafs bounded by [0, LPERCTL] (maximum leaf nodes per dmapctl).
- l2nleafs bounded by [0, L2LPERCTL] and consistent with nleafs
(nleafs must be 2^l2n... | ```diff
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 2abe8cc02ee6..a841cf21da7d 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -133,6 +133,93 @@ static const s8 budtab[256] = {
2, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -1
};
+/*
+ * check_dmapctl - Validate integrity of a dmapctl structur... |
119e448bb50a5b2626e248c01f439095766e248b | Analyze and fix the following issue in the Linux kernel code: jfs: add dtpage integrity check to prevent index/pointer overflows | Problem Details:
Add check_dtpage() to validate dtpage_t integrity, focusing on
preventing index/pointer overflows from on-disk corruption.
Key checks:
- maxslot must be exactly DTPAGEMAXSLOT (128) as defined for dtpage
slot array.
- freecnt bounded by [0, DTPAGEMAXSLOT-1] (slot[0] reserved for header).
- freelist v... | ```diff
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 8abd9c7663ea..7669e268fe35 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -115,10 +115,7 @@ struct dtsplit {
do { \
BT_GETPAGE(IP, BN, MP, dtpage_t, SIZE, P, RC, i_dtroot); \
if (!(RC)) { \
- if (((P)->header.nextindex >... |
c83abc766aeb153e69cb46363bf7c9de0c9f3268 | Analyze and fix the following issue in the Linux kernel code: jfs: add dtroot integrity check to prevent index out-of-bounds | Problem Details:
Add check_dtroot() to validate dtroot_t integrity, focusing on preventing
index/pointer overflows from on-disk corruption.
Key checks:
- freecnt bounded by [0, DTROOTMAXSLOT-1] (slot[0] reserved for header).
- freelist validity: -1 when freecnt=0; 1~DTROOTMAXSLOT-1 when non-zero,
with linked list... | ```diff
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 9ab3f2fc61d1..8abd9c7663ea 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -4297,3 +4297,89 @@ int dtModify(tid_t tid, struct inode *ip,
return 0;
}
+
+bool check_dtroot(dtroot_t *p)
+{
+ DECLARE_BITMAP(bitmap, DTROOTMAXSLOT) = {0};
+ i... |
ee78d466db8a001d137d6f9c97010b343aee456b | Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: ifc: set chip->of_node to nand@0 child node if present | Problem Details:
The nand-controller.yaml binding requires a child node (e.g. nand@0) under
the NAND controller. However, the driver currently assigns the controller's
of_node directly to the NAND chip.
Search for the first child node with the "nand" prefix and assign it to
chip->of_node. This filters out properties s... | ```diff
diff --git a/drivers/mtd/nand/raw/fsl_ifc_nand.c b/drivers/mtd/nand/raw/fsl_ifc_nand.c
index dd88b22a91bd..fad0334f759d 100644
--- a/drivers/mtd/nand/raw/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_ifc_nand.c
@@ -7,6 +7,7 @@
* Author: Dipen Dudhat <Dipen.Dudhat@freescale.com>
*/
+#include <linux/cleanup... |
f7bd1948a5461df9e1027d5bd9a511e754146689 | Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: mxc: set chip->of_node to nand@0 child node if present | Problem Details:
The nand-controller.yaml binding requires a child node (e.g. nand@0) under
the NAND controller. However, the driver currently assigns the controller's
of_node directly to the NAND chip.
Search for the first child node with the "nand" prefix and assign it to
chip->of_node. This filters out properties s... | ```diff
diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c
index 8c56b685bf91..4d8b92e7e672 100644
--- a/drivers/mtd/nand/raw/mxc_nand.c
+++ b/drivers/mtd/nand/raw/mxc_nand.c
@@ -4,6 +4,7 @@
* Copyright 2008 Sascha Hauer, kernel@pengutronix.de
*/
+#include <linux/cleanup.h>
#include <... |
3a6e21ea57c8118d3095f073aeaf9362dc2c3865 | Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: gpmi: set chip->of_node to nand@0 child node if present | Problem Details:
The nand-controller.yaml binding requires a child node (e.g. nand@0) under
the NAND controller. However, the driver currently assigns the controller's
of_node directly to the NAND chip.
Search for the first child node with the "nand" prefix and assign it to
chip->of_node. This filters out properties s... | ```diff
diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 51f595fbc834..c1f766cb225a 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -5,6 +5,7 @@
* Copyright (C) 2010-2015 Freescale Semiconductor, Inc.... |
da9ba4dcc01e7cf52b7676f0ee9607b8358c2171 | Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: brcmnand: skip DMA during panic write | Problem Details:
When oops_panic_write is set, the driver disables interrupts and
switches to PIO polling mode but still falls through into the DMA
path. DMA cannot be used reliably in panic context, so make the
DMA path an else branch to ensure only PIO is used during panic
writes.
Fixes: c1ac2dc34b51 ("mtd: rawnand:... | ```diff
diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index 0427d76f45d0..5b9dadd5405e 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -2350,14 +2350,12 @@ static int brcmnand_write(struct mtd_info *mtd, struct na... |
bab2bc6e850a697a23b9e5f0e21bb8c187615e95 | Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: serialize lock/unlock against other NAND operations | Problem Details:
nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area
without holding the NAND device lock. On controllers that implement
SET_FEATURES via multiple low-level PIO commands, these can race with
concurrent UBI/UBIFS background erase/write operations that hold the
device lock, resulting i... | ```diff
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 38429363251c..dfd8361bdd36 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4737,11 +4737,16 @@ static void nand_shutdown(struct mtd_info *mtd)
static int nand_lock(struct mtd_info *mt... |
a9683730e8b1d632674f81844ed03ddfbe4821c0 | Analyze and fix the following issue in the Linux kernel code: ASoC: detect empty DMI strings | Problem Details:
Some bootloaders like recent versions of U-Boot may install some DMI
properties with empty values rather than not populate them. This manages
to make its way through the validator and cleanup resulting in a rogue
hyphen being appended to the card longname.
Fixes: 4e01e5dbba96 ("ASoC: improve the DMI l... | ```diff
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index cf826c2a8b59..573693e21780 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1863,12 +1863,15 @@ static void cleanup_dmi_name(char *name)
/*
* Check if a DMI field is valid, i.e. not containing any string
- * in the black list.
+... |
073b2db72426adee591a0f5a967009ea459ef688 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: mtd: st,spear600-smi: Fix example | Problem Details:
Example is wrong, the reg property of the flash is always matching the
node name.
Fixes: 68cd8ef48452 ("dt-bindings: mtd: st,spear600-smi: convert to DT schema")
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> | ```diff
diff --git a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
index 62d4359908f2..e7385d906591 100644
--- a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
+++ b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
@@ -76,7 ... |
c21cac8cdcdcb7940c0aab85246ffbb649b73937 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: mtd: st,spear600-smi: #address/size-cells is mandatory | Problem Details:
These properties must be set because they overwrite the default values,
especially #size-cells which is 0 for most controllers and is 'const: 1'
here.
Fixes: 68cd8ef48452 ("dt-bindings: mtd: st,spear600-smi: convert to DT schema")
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel ... | ```diff
diff --git a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
index d065df269657..62d4359908f2 100644
--- a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
+++ b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
@@ -60,6 ... |
db9a26765010c55712d8cff32ea9d99732407c55 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: mtd: st,spear600-smi: Fix description | Problem Details:
The description mixes two nodes. There is the controller, and there is
the flash. Describe the flash (which itself can be considered an mtd
device, unlike the top level controller), and move the st,smi-fast-mode
property inside, as this property is flash specific and should not live
in the parent contr... | ```diff
diff --git a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
index 8fe27aae7527..d065df269657 100644
--- a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
+++ b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml
@@ -19,9 ... |
0073a17b466684413ac87cf8ff6c19560db44e7a | Analyze and fix the following issue in the Linux kernel code: gpu: nova-core: gsp: fix UB in DmaGspMem pointer accessors | Problem Details:
The DmaGspMem pointer accessor methods (gsp_write_ptr, gsp_read_ptr,
cpu_read_ptr, cpu_write_ptr, advance_cpu_read_ptr,
advance_cpu_write_ptr) dereference a raw pointer to DMA memory, creating
an intermediate reference before calling volatile read/write methods.
This is undefined behavior since DMA me... | ```diff
diff --git a/drivers/gpu/nova-core/gsp/cmdq.rs b/drivers/gpu/nova-core/gsp/cmdq.rs
index 9c5efd2daf45..03a4f3599849 100644
--- a/drivers/gpu/nova-core/gsp/cmdq.rs
+++ b/drivers/gpu/nova-core/gsp/cmdq.rs
@@ -2,11 +2,7 @@
use core::{
cmp,
- mem,
- sync::atomic::{
- fence,
- Ordering, /... |
ca19808bc6fac7e29420d8508df569b346b3e339 | Analyze and fix the following issue in the Linux kernel code: mtd: docg3: fix use-after-free in docg3_release() | Problem Details:
In docg3_release(), the docg3 pointer is obtained from
cascade->floors[0]->priv before the loop that calls
doc_release_device() on each floor. doc_release_device() frees the
docg3 struct via kfree(docg3) at line 1881. After the loop,
docg3->cascade->bch dereferences the already-freed pointer.
Fix this... | ```diff
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index 33050a2a80f7..603fd0efc2ea 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -2049,7 +2049,6 @@ err_probe:
static void docg3_release(struct platform_device *pdev)
{
struct docg3_cascade *cascade = platfo... |
87d8f1285470b3c8367880993113ea604d365e33 | Analyze and fix the following issue in the Linux kernel code: mtd: virt_concat: fix kdoc text | Problem Details:
The function name in the kdoc comment is different from the name of the
function being documented, fix it.
Fixes: 43db6366fc2d ("mtd: Add driver for concatenating devices")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202603041232.fNDHNtUa-lkp@intel.com/... | ```diff
diff --git a/drivers/mtd/mtd_virt_concat.c b/drivers/mtd/mtd_virt_concat.c
index aea88d1c9bc5..42c3bf189faa 100644
--- a/drivers/mtd/mtd_virt_concat.c
+++ b/drivers/mtd/mtd_virt_concat.c
@@ -222,7 +222,7 @@ void mtd_virt_concat_destroy_items(void)
}
/**
- * mtd_virt_concat_create_add - Add a mtd device to t... |
163cc462dea7d5b75be4db49ca78a2b99c55375e | Analyze and fix the following issue in the Linux kernel code: gpib: lpvo_usb: fix unintended binding of FTDI 8U232AM devices | Problem Details:
The LPVO USB GPIB adapter apparently uses an FTDI 8U232AM with the
default PID, but this device id is already handled by the ftdi_sio
serial driver.
Stop binding to the default PID to avoid breaking existing setups with
FTDI 8U232AM.
Anyone using this driver should blacklist the ftdi_sio driver and a... | ```diff
diff --git a/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c b/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c
index 6fc4e3452b88..ee781d2f0b8e 100644
--- a/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c
+++ b/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c
@@ -38,8 +38,10 @@ MODULE_DESCRIPTION("GPIB driver for LPVO usb devices")... |
8345b1539faa49fcf9c9439c3cbd97dac6eca171 | Analyze and fix the following issue in the Linux kernel code: usb: roles: get usb role switch from parent only for usb-b-connector | Problem Details:
usb_role_switch_is_parent() was walking up to the parent node and checking
for the "usb-role-switch" property regardless of the type of the passed
fwnode. This could cause unrelated device nodes to be probed as potential
role switch parent, leading to spurious matches and "-EPROBE_DEFER" being
returned... | ```diff
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index b8e28ceca51e..edec139b68b5 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -139,9 +139,14 @@ static void *usb_role_switch_match(const struct fwnode_handle *fwnode, const cha
static struct usb_role_switch *
usb_r... |
6b275bfaa16be3fb1689fa6794e445ecd127a1b4 | Analyze and fix the following issue in the Linux kernel code: Revert "tcpm: allow looking for role_sw device in the main node" | Problem Details:
This reverts commit 1366cd228b0c67b60a2c0c26ef37fe9f7cfedb7f.
The fwnode_usb_role_switch_get() returns NULL only if no connection is
found, returns ERR_PTR(-EPROBE_DEFER) if connection is found but deferred
probe is needed, or a valid pointer of usb_role_switch.
When switching from a NULL check to IS... | ```diff
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 1d2f3af034c5..8e0e14a2704e 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -7890,7 +7890,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->partner_desc.id... |
ec35c1969650e7cb6c8a91020e568ed46e3551b0 | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_ncm: Fix net_device lifecycle with device_move | Problem Details:
The network device outlived its parent gadget device during
disconnection, resulting in dangling sysfs links and null pointer
dereference problems.
A prior attempt to solve this by removing SET_NETDEV_DEV entirely [1]
was reverted due to power management ordering concerns and a NO-CARRIER
regression.
... | ```diff
diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
index 3d772c9beb91..a6fa5ed3d6cb 100644
--- a/drivers/usb/gadget/function/f_ncm.c
+++ b/drivers/usb/gadget/function/f_ncm.c
@@ -1439,6 +1439,7 @@ static int ncm_bind(struct usb_configuration *c, struct usb_function *f)
stru... |
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