id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
321d6b4b9cbe3dd0bc99937d5e5b4d730b5b5798 | Analyze and fix the following issue in the Linux kernel code: drm/xe: fixup xe_alloc_pf_queue | Problem Details:
kzalloc expects number of bytes, therefore we should convert the number
of dw into bytes, otherwise we are likely just accessing beyond the
array causing all kinds of carnage. Also fixup the error handling while
we are here.
v2:
- Prefer kcalloc (dim)
Fixes: 3338e4f90c14 ("drm/xe: Use topology to de... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_gt_pagefault.c b/drivers/gpu/drm/xe/xe_gt_pagefault.c
index 401c0527d914..0be4687bfc20 100644
--- a/drivers/gpu/drm/xe/xe_gt_pagefault.c
+++ b/drivers/gpu/drm/xe/xe_gt_pagefault.c
@@ -417,7 +417,10 @@ static int xe_alloc_pf_queue(struct xe_gt *gt, struct pf_queue *pf_queue)
... |
40520283e0fd11237ed9dfc0991503b3403d5fa4 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Invalidate media_gt TLBs in PT code | Problem Details:
Testing on LNL has shown media GT's TLBs need to be invalidated via the
GuC, update PT code appropriately.
v2:
- Do dma_fence_get before first call of invalidation_fence_init (Himal)
- No need to check for valid chain fence (Himal)
Fixes: 3330361543fc ("drm/xe/lnl: Add LNL platform definition")
Sig... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index 579ed31b46db..6c6714af3d5d 100644
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -3,6 +3,8 @@
* Copyright © 2022 Intel Corporation
*/
+#include <linux/dma-fence-chain.h>
+
#include "xe_pt.h"
#include "regs... |
124410976bf807e76c45e36685ed8bf959229545 | Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: limit the PPDU length for VHT rate to 0x40000 | Problem Details:
If the PPDU length for VHT rate exceeds 0x40000, calculating the PSDU
length will overflow. TMAC will determine the length to be too small and
as a result, all packets will be sent as ZLD (Zero Length Delimiter).
Fixes: 5f7e92c59b8e ("wifi: rtw89: 8852b: set AMSDU limit to 5000")
Signed-off-by: Chia-Y... | ```diff
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index 89875f59d722..a661c176100c 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -2742,6 +2742,7 @@ bool rtw89_mac_is_qta_dbcc(struct rtw89_dev *rtwdev, enum r... |
76abb5d675c49baa0bc899c6ef8b49197ac914b8 | Analyze and fix the following issue in the Linux kernel code: net: xilinx: axienet: Add statistics support | Problem Details:
Add support for reading the statistics counters, if they are enabled.
The counters may be 64-bit, but we can't detect this statically as
there's no ability bit for it and the counters are read-only. Therefore,
we assume the counters are 32-bits by default. To ensure we don't miss
an overflow, we read a... | ```diff
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index ea4103a635f9..8165f5f271ff 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -156,6 +156,7 @@
#define XAE_TPID0_OFFSET 0x00000028 /* VLAN ... |
8baeef7616d5194045c5a6b97fd1246b87c55b13 | Analyze and fix the following issue in the Linux kernel code: bnxt_en: Fix double DMA unmapping for XDP_REDIRECT | Problem Details:
Remove the dma_unmap_page_attrs() call in the driver's XDP_REDIRECT
code path. This should have been removed when we let the page pool
handle the DMA mapping. This bug causes the warning:
WARNING: CPU: 7 PID: 59 at drivers/iommu/dma-iommu.c:1198 iommu_dma_unmap_page+0xd5/0x100
CPU: 7 PID: 59 Comm: k... | ```diff
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index 345681d5007e..f88b641533fc 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -297,11 +297,6 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct... |
2d5ff7e339d04622d8282661df36151906d0e1c7 | Analyze and fix the following issue in the Linux kernel code: ipv6: prevent possible UAF in ip6_xmit() | Problem Details:
If skb_expand_head() returns NULL, skb has been freed
and the associated dst/idev could also have been freed.
We must use rcu_read_lock() to prevent a possible UAF.
Fixes: 0c9f227bee11 ("ipv6: use skb_expand_head in ip6_xmit")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vasily Averin <vasil... | ```diff
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 1b9ebee7308f..f26841f1490f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -287,11 +287,15 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
head_room += opt->opt_nflen + opt->opt_flen;
if (un... |
da273b377ae0d9bd255281ed3c2adb228321687b | Analyze and fix the following issue in the Linux kernel code: ipv6: fix possible UAF in ip6_finish_output2() | Problem Details:
If skb_expand_head() returns NULL, skb has been freed
and associated dst/idev could also have been freed.
We need to hold rcu_read_lock() to make sure the dst and
associated idev are alive.
Fixes: 5796015fa968 ("ipv6: allocate enough headroom in ip6_finish_output2()")
Signed-off-by: Eric Dumazet <edu... | ```diff
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index f7b53effc80f..1b9ebee7308f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -70,11 +70,15 @@ static int ip6_finish_output2(struct net *net, struct sock *sk, struct sk_buff *
/* Be paranoid, rather than too clever. */
if (unl... |
faa389b2fbaaec7fd27a390b4896139f9da662e3 | Analyze and fix the following issue in the Linux kernel code: ipv6: prevent UAF in ip6_send_skb() | Problem Details:
syzbot reported an UAF in ip6_send_skb() [1]
After ip6_local_out() has returned, we no longer can safely
dereference rt, unless we hold rcu_read_lock().
A similar issue has been fixed in commit
a688caa34beb ("ipv6: take rcu lock in rawv6_send_hdrinc()")
Another potential issue in ip6_finish_output2(... | ```diff
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index ab504d31f0cd..f7b53effc80f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1956,6 +1956,7 @@ int ip6_send_skb(struct sk_buff *skb)
struct rt6_info *rt = dst_rt6_info(skb_dst(skb));
int err;
+ rcu_read_lock();
err = ip6_l... |
0ce054f2b891afdd102c8bcc1fc57253c8964e40 | Analyze and fix the following issue in the Linux kernel code: ice: Fix a 32bit bug | Problem Details:
BIT() is unsigned long but ->pu.flg_msk and ->pu.flg_val are u64 type.
On 32 bit systems, unsigned long is a u32 and the mismatch between u32
and u64 will break things for the high 32 bits.
Fixes: 9a4c07aaa0f5 ("ice: add parser execution main loop")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.o... | ```diff
diff --git a/drivers/net/ethernet/intel/ice/ice_parser_rt.c b/drivers/net/ethernet/intel/ice/ice_parser_rt.c
index d5bcc266b01e..dedf5e854e4b 100644
--- a/drivers/net/ethernet/intel/ice/ice_parser_rt.c
+++ b/drivers/net/ethernet/intel/ice/ice_parser_rt.c
@@ -377,11 +377,11 @@ static void ice_pg_exe(struct ice_p... |
f8669d7b5f5d2d88959456ae9123d8bb6fdc1ebe | Analyze and fix the following issue in the Linux kernel code: selftests: mlxsw: ethtool_lanes: Source ethtool lib from correct path | Problem Details:
Source the ethtool library from the correct path and avoid the following
error:
./ethtool_lanes.sh: line 14: ./../../../net/forwarding/ethtool_lib.sh: No such file or directory
Fixes: 40d269c000bd ("selftests: forwarding: Move several selftests")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed... | ```diff
diff --git a/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh b/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh
index 877cd6df94a1..fe905a7f34b3 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh
@@ -2,6 +... |
488d34643ec3f4ce5ce120846fc81412534e9af1 | Analyze and fix the following issue in the Linux kernel code: nfc: pn533: Avoid -Wflex-array-member-not-at-end warnings | Problem Details:
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Remove unnecessary flex-array member `data[]`, and with this fix
the following warnings:
drivers/nfc/pn533/usb.c:268:38: warning: structure containing a flexible array member is not at the end of... | ```diff
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index a187f0e0b0f7..ffd7367ce119 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -254,7 +254,6 @@ struct pn533_acr122_ccid_hdr {
* byte for reposnse msg
*/
u8 params[3];
- u8 data[]; /* payload */
} __packed;
struct... |
b128ed5ab27330deeeaf51ea8bb69f1442a96f7f | Analyze and fix the following issue in the Linux kernel code: udp: fix receiving fraglist GSO packets | Problem Details:
When assembling fraglist GSO packets, udp4_gro_complete does not set
skb->csum_start, which makes the extra validation in __udp_gso_segment fail.
Fixes: 89add40066f9 ("net: drop bad gso csum_start and offset in virtio_net_hdr")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Willem de Bruijn ... | ```diff
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index b254a5dadfcf..d842303587af 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -279,7 +279,8 @@ struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
return ERR_PTR(-EINVAL);
if (unlikely(skb_checksum_start(gso_skb) !... |
2933aa8b77be957d57d1a1ba71617e09cdaa2cbb | Analyze and fix the following issue in the Linux kernel code: HID: hid-playstation: DS4: Update rumble and lightbar together | Problem Details:
Some 3rd party gamepads expect updates to rumble and lightbar together,
and setting one may cancel the other.
Let's maximise compatibility by always sending rumble and lightbar
updates together, even when only one has been scheduled.
Further background reading:
- Apparently the PS4 always sends rumb... | ```diff
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c
index e7c309cfe3a0..0d90d7ee693c 100644
--- a/drivers/hid/hid-playstation.c
+++ b/drivers/hid/hid-playstation.c
@@ -2143,6 +2143,26 @@ static void dualshock4_output_worker(struct work_struct *work)
spin_lock_irqsave(&ds4->base.lock, ... |
db1ec60fba4a995975dc1dc837b408db0d666801 | Analyze and fix the following issue in the Linux kernel code: PCI: qcom: Use OPP only if the platform supports it | Problem Details:
With commit 5b6272e0efd5 ("PCI: qcom: Add OPP support to scale
performance"), OPP was used to control the interconnect and power domains
if the platform supported OPP. Also to maintain the backward compatibility
with platforms not supporting OPP but just ICC, the above mentioned commit
assumed that if ... | ```diff
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 0180edf3310e..6f953e32d990 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -261,6 +261,7 @@ struct qcom_pcie {
const struct qcom_pcie_cfg *cfg;
struct dentry... |
5d6a6c7454ebaefba518e334750b05700131923b | Analyze and fix the following issue in the Linux kernel code: PCI: qcom-ep: Disable MHI RAM data parity error interrupt for SA8775P SoC | Problem Details:
SA8775P SoC has support for the hardware parity check feature on the MHI
RAM (entity that holds MHI registers, etc.) But due to a hardware bug in
the parity check logic, the data parity error interrupt is getting
generated all the time when using MHI. So the hardware team has suggested
disabling the pa... | ```diff
diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c
index 236229f66c80..a9b263f749b6 100644
--- a/drivers/pci/controller/dwc/pcie-qcom-ep.c
+++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c
@@ -58,6 +58,7 @@
#define PARF_DEBUG_CNT_AUX_CLK_IN_L1SUB_L2 0xc88
#define ... |
447b167bb60d0bb95967c4d93dac9af1cca437db | Analyze and fix the following issue in the Linux kernel code: nvdimm: Remove dead code for ENODEV checking in scan_labels() | Problem Details:
The only way create_namespace_pmem() returns an ENODEV code is if
select_pmem_id(nd_region, &uuid) returns ENODEV when its 2nd parameter
is a null pointer. However, this is impossible because &uuid is always
valid.
Furthermore, create_namespace_pmem() is the only user of
select_pmem_id(), it's safe to... | ```diff
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 35d9f3cc2efa..55cfbf1e0a95 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1612,9 +1612,6 @@ static int select_pmem_id(struct nd_region *nd_region, const uuid_t *pmem_id)
{
int i;
- i... |
62c2aa6b1f565d2fc1ec11a6e9e8336ce37a6426 | Analyze and fix the following issue in the Linux kernel code: nvdimm: Fix devs leaks in scan_labels() | Problem Details:
scan_labels() leaks memory when label scanning fails and it falls back
to just creating a default "seed" namespace for userspace to configure.
Root can force the kernel to leak memory.
Allocate the minimum resources unconditionally and release them when
unneeded to avoid the memory leak.
A kmemleak r... | ```diff
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index d6d558f94d6b..35d9f3cc2efa 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1937,12 +1937,16 @@ static int cmp_dpa(const void *a, const void *b)
static struct device **scan_labels(struct n... |
524b2c6dc80d735be9ebcd2decffe2889baab65d | Analyze and fix the following issue in the Linux kernel code: romfs: fix romfs_read_folio() | Problem Details:
Add the correct offset to folio_zero_tail().
Fixes: d86f2de026c5 ("romfs: Convert romfs_read_folio() to use a folio")
Reported-by: Greg Ungerer <gregungerer@westnet.com.au>
Link: https://lore.kernel.org/r/Zr0GTnPHfeA0P8nb@casper.infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org> | ```diff
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 68758b6fed94..0addcc849ff2 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -126,7 +126,7 @@ static int romfs_read_folio(struct file *file, struct folio *folio)
}
}
- buf = folio_zero_tail(folio, fillsize, buf);
+ buf = folio_zero_tail(folio, ... |
92764e8822d4e7f8efb5ad959fac195a7f8ea0c6 | Analyze and fix the following issue in the Linux kernel code: netfs, ceph: Partially revert "netfs: Replace PG_fscache by setting folio->private and marking dirty" | Problem Details:
This partially reverts commit 2ff1e97587f4d398686f52c07afde3faf3da4e5c.
In addition to reverting the removal of PG_private_2 wrangling from the
buffered read code[1][2], the removal of the waits for PG_private_2 from
netfs_release_folio() and netfs_invalidate_folio() need reverting too.
It also adds ... | ```diff
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 71cd70514efa..4a8eec46254b 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -695,6 +695,7 @@ void ceph_evict_inode(struct inode *inode)
percpu_counter_dec(&mdsc->metric.total_inodes);
+ netfs_wait_for_outstanding_io(inode);
truncate_inode_pages_f... |
c4b43d8336e52dce6d124e428aa3b71703e62647 | Analyze and fix the following issue in the Linux kernel code: drivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir() | Problem Details:
The debugfs_create_dir() function returns error pointers.
It never returns NULL. So use IS_ERR() to check it.
Signed-off-by: Yang Ruibin <11162571@vivo.com>
Link: https://patch.msgid.link/20240821083911.3411-1-11162571@vivo.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c
index a52a6b61c8b5..20b3b5212da7 100644
--- a/drivers/iio/industrialio-backend.c
+++ b/drivers/iio/industrialio-backend.c
@@ -219,7 +219,7 @@ void iio_backend_debugfs_add(struct iio_backend *back,
snprintf(name, sizeof(name),... |
dbc3171194403d0d40e4bdeae666f6e76e428b53 | Analyze and fix the following issue in the Linux kernel code: x86/PCI: Check pcie_find_root_port() return for NULL | Problem Details:
If pcie_find_root_port() is unable to locate a Root Port, it will return
NULL. Check the pointer for NULL before dereferencing it.
This particular case is in a quirk for devices that are always below a Root
Port, so this won't avoid a problem and doesn't need to be backported, but
check as a matter of... | ```diff
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index b33afb240601..98a9bb92d75c 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -980,7 +980,7 @@ static void amd_rp_pme_suspend(struct pci_dev *dev)
return;
rp = pcie_find_root_port(dev);
- if (!rp->pm_cap)
+ if (!rp || !rp->pm_cap... |
bc754cc76d1bbc87be5d8b7eee05ceb0ae613bce | Analyze and fix the following issue in the Linux kernel code: tracing: Fix memory leak in fgraph storage selftest | Problem Details:
With ftrace boot-time selftest, kmemleak reported some memory leaks in
the new test case for function graph storage for multiple tracers.
unreferenced object 0xffff888005060080 (size 32):
comm "swapper/0", pid 1, jiffies 4294676440
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 20 10 06 05... | ```diff
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 97f1e4bc47dc..c4ad7cd7e778 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -942,7 +942,7 @@ static __init int test_graph_storage_multi(void)
{
struct fgraph_fixture *fixture;
bool printed = fa... |
57df60e1f981fa8c288a49012a4bbb02ae0ecdbc | Analyze and fix the following issue in the Linux kernel code: thermal/debugfs: Fix the NULL vs IS_ERR() confusion in debugfs_create_dir() | Problem Details:
The debugfs_create_dir() return value is never NULL, it is either a
valid pointer or an error one.
Use IS_ERR() to check it.
Fixes: 7ef01f228c9f ("thermal/debugfs: Add thermal debugfs information for mitigation episodes")
Fixes: 755113d76786 ("thermal/debugfs: Add thermal cooling device debugfs infor... | ```diff
diff --git a/drivers/thermal/thermal_debugfs.c b/drivers/thermal/thermal_debugfs.c
index 7dd67bf48571..939d3e5f1817 100644
--- a/drivers/thermal/thermal_debugfs.c
+++ b/drivers/thermal/thermal_debugfs.c
@@ -178,11 +178,11 @@ struct thermal_debugfs {
void thermal_debug_init(void)
{
d_root = debugfs_create_di... |
f00bb757ed630affc951691ddaff206039cbb7ee | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: fix to avoid __msg tag de-duplication by clang | Problem Details:
__msg, __regex and __xlated tags are based on
__attribute__((btf_decl_tag("..."))) annotations.
Clang de-duplicates such annotations, e.g. the following
two sequences of tags are identical in final BTF:
/* seq A */ /* seq B */
__tag("foo") __tag("foo")
__tag("bar") ... | ```diff
diff --git a/tools/testing/selftests/bpf/progs/bpf_misc.h b/tools/testing/selftests/bpf/progs/bpf_misc.h
index a225cd87897c..4f1029743734 100644
--- a/tools/testing/selftests/bpf/progs/bpf_misc.h
+++ b/tools/testing/selftests/bpf/progs/bpf_misc.h
@@ -2,6 +2,9 @@
#ifndef __BPF_MISC_H__
#define __BPF_MISC_H__
... |
d0a29cdb6ef95d8a175e09ab2d1334271f047e60 | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: correctly move 'log' upon successful match | Problem Details:
Suppose log="foo bar buz" and msg->substr="bar".
In such case current match processing logic would update 'log' as
follows: log += strlen(msg->substr); -> log += 3 -> log=" bar".
However, the intent behind the 'log' update is to make it point after
the successful match, e.g. to make log=" buz" in the e... | ```diff
diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c
index 1b1290e090e7..f5f5d16ac550 100644
--- a/tools/testing/selftests/bpf/test_loader.c
+++ b/tools/testing/selftests/bpf/test_loader.c
@@ -522,7 +522,7 @@ static void validate_msgs(char *log_buf, struct expected_... |
a069a22f391019e84390f4e8c1a9c531ba4fb28f | Analyze and fix the following issue in the Linux kernel code: tracing: fgraph: Fix to add new fgraph_ops to array after ftrace_startup_subops() | Problem Details:
Since the register_ftrace_graph() assigns a new fgraph_ops to
fgraph_array before registring it by ftrace_startup_subops(), the new
fgraph_ops can be used in function_graph_enter().
In most cases, it is still OK because those fgraph_ops's hashtable is
already initialized by ftrace_set_filter*() etc.
... | ```diff
diff --git a/kernel/trace/fgraph.c b/kernel/trace/fgraph.c
index d1d5ea2d0a1b..d7d4fb403f6f 100644
--- a/kernel/trace/fgraph.c
+++ b/kernel/trace/fgraph.c
@@ -1206,18 +1206,24 @@ static void init_task_vars(int idx)
read_unlock(&tasklist_lock);
}
-static void ftrace_graph_enable_direct(bool enable_branch)
+... |
baebe9aaba1e59e34cd1fe6455bb4c3029ad3bc1 | Analyze and fix the following issue in the Linux kernel code: bpf: allow passing struct bpf_iter_<type> as kfunc arguments | Problem Details:
There are potentially useful cases where a specific iterator type might
need to be passed into some kfunc. So, in addition to existing
bpf_iter_<type>_{new,next,destroy}() kfuncs, allow to pass iterator
pointer to any kfunc.
We employ "__iter" naming suffix for arguments that are meant to accept
itera... | ```diff
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index df3be12096cf..920d7c5fe944 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7970,12 +7970,17 @@ static bool is_iter_destroy_kfunc(struct bpf_kfunc_call_arg_meta *meta)
return meta->kfunc_flags & KF_ITER_DESTROY;
}
-static bo... |
8fa052c29e509f3e47d56d7fc2ca28094d78c60a | Analyze and fix the following issue in the Linux kernel code: remoteproc: k3-r5: Delay notification of wakeup event | Problem Details:
Few times, core1 was scheduled to boot first before core0, which leads
to error:
'k3_r5_rproc_start: can not start core 1 before core 0'.
This was happening due to some scheduling between prepare and start
callback. The probe function waits for event, which is getting
triggered by prepare callback. T... | ```diff
diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
index 0a9fe53dd40d..60bd2042b0c6 100644
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -469,8 +469,6 @@ static int k3_r5_rproc_prepare(struct rproc *rproc)
ret);... |
d156263e247c334a8872578118e0709ed63c4806 | Analyze and fix the following issue in the Linux kernel code: workqueue: Fix another htmldocs build warning | Problem Details:
Fix htmldocs build warning introduced by 9b59a85a84dc ("workqueue: Don't
call va_start / va_end twice").
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Matthew Brost <matthew.brost@intel.com> | ```diff
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index f3cc15940b4d..59c2695e12e7 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -534,7 +534,7 @@ alloc_workqueue_lockdep_map(const char *fmt, unsigned int flags, int max_active,
* @fmt: printf format for the name of ... |
84c425bef3409d69ddb171c89664f66030bbf9d9 | Analyze and fix the following issue in the Linux kernel code: workqueue: fix null-ptr-deref on __alloc_workqueue() error | Problem Details:
wq->lockdep_map is set only after __alloc_workqueue()
successfully returns. However, on its error path
__alloc_workqueue() may call destroy_workqueue() which
expects wq->lockdep_map to be already set, which results
in a null-ptr-deref in touch_wq_lockdep_map().
Add a simple NULL-check to touch_wq_lock... | ```diff
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 7cc77adb18bb..03dc2c95d62e 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3871,6 +3871,9 @@ static bool flush_workqueue_prep_pwqs(struct workqueue_struct *wq,
static void touch_wq_lockdep_map(struct workqueue_struct *wq)
{
#ifdef CONFIG... |
77cc3f6c58b1b28cee73904946c46a1415187d04 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Invalidate media_gt TLBs | Problem Details:
Testing on LNL has shown media TLBs need to be invalidated via the GuC,
update xe_vm_invalidate_vma appropriately.
v2: Fix 2 tile case
v3: Include missing local change
Fixes: 3330361543fc ("drm/xe/lnl: Add LNL platform definition")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: H... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 3cff3ae57643..bfa4880a1673 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -3157,9 +3157,10 @@ int xe_vm_invalidate_vma(struct xe_vma *vma)
{
struct xe_device *xe = xe_vma_vm(vma)->xe;
struct xe_tile *til... |
9e7f30563677fbeff62d368d5d2a5ac7aaa9746a | Analyze and fix the following issue in the Linux kernel code: drm/xe: Free job before xe_exec_queue_put | Problem Details:
Free job depends on job->vm being valid, the last xe_exec_queue_put can
destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_sched_job.c b/drivers/gpu/drm/xe/xe_sched_job.c
index 44d534e362cd..9628f9deb3c0 100644
--- a/drivers/gpu/drm/xe/xe_sched_job.c
+++ b/drivers/gpu/drm/xe/xe_sched_job.c
@@ -171,12 +171,13 @@ void xe_sched_job_destroy(struct kref *ref)
struct xe_sched_job *job =
container_o... |
dd3e840a33b57b92812fbec26273b3f0b4eb5ae3 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Drop HW fence pointer to HW fence ctx | Problem Details:
The HW fence ctx objects are not ref counted rather tied to the life of
an LRC object. HW fences reference the HW fence ctx, HW fences can
outlive LRCs thus resulting in UAF. Drop the HW fence pointer to HW
fence ctx rather just store what is needed directly in HW fence.
v2:
- Fix typo in commit (As... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_hw_fence.c b/drivers/gpu/drm/xe/xe_hw_fence.c
index 45a9789cf501..0b4f12be3692 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence.c
+++ b/drivers/gpu/drm/xe/xe_hw_fence.c
@@ -148,20 +148,20 @@ static const char *xe_hw_fence_get_driver_name(struct dma_fence *dma_fence)
{
struct xe_... |
a6f78359ac75f24cac3c1bdd753c49c1877bcd82 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Fix missing workqueue destroy in xe_gt_pagefault | Problem Details:
On driver reload we never free up the memory for the pagefault and
access counter workqueues. Add those destroy calls here.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.c... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_gt_pagefault.c b/drivers/gpu/drm/xe/xe_gt_pagefault.c
index 9292d5468868..b2a7fa55bd18 100644
--- a/drivers/gpu/drm/xe/xe_gt_pagefault.c
+++ b/drivers/gpu/drm/xe/xe_gt_pagefault.c
@@ -382,6 +382,18 @@ static void pf_queue_work_func(struct work_struct *w)
static void acc_que... |
32a42c93b74c8ca6d0915ea3eba21bceff53042f | Analyze and fix the following issue in the Linux kernel code: drm/xe: Free job before xe_exec_queue_put | Problem Details:
Free job depends on job->vm being valid, the last xe_exec_queue_put can
destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_sched_job.c b/drivers/gpu/drm/xe/xe_sched_job.c
index 44d534e362cd..9628f9deb3c0 100644
--- a/drivers/gpu/drm/xe/xe_sched_job.c
+++ b/drivers/gpu/drm/xe/xe_sched_job.c
@@ -171,12 +171,13 @@ void xe_sched_job_destroy(struct kref *ref)
struct xe_sched_job *job =
container_o... |
c158ceb826068a8bbe3c9e78df420f47ba53c8a8 | Analyze and fix the following issue in the Linux kernel code: soc: qcom: pd-mapper: Fix singleton refcount | Problem Details:
The Qualcomm pd-mapper is a refcounted singleton, but the refcount is
never incremented, which means the as soon as any remoteproc instance
stops the count will hit 0.
At this point the pd-mapper QMI service is stopped, leaving firmware
without access to the PD information. Stopping any other remotepr... | ```diff
diff --git a/drivers/soc/qcom/qcom_pd_mapper.c b/drivers/soc/qcom/qcom_pd_mapper.c
index 9afa09c3920e..2228595a3dc5 100644
--- a/drivers/soc/qcom/qcom_pd_mapper.c
+++ b/drivers/soc/qcom/qcom_pd_mapper.c
@@ -635,6 +635,8 @@ static int qcom_pdm_probe(struct auxiliary_device *auxdev,
ret = PTR_ERR(data);
el... |
4d6d6e0f61e2267103e9b013d2a82d04ff278127 | Analyze and fix the following issue in the Linux kernel code: perf annotate-data: Fix percpu pointer check | Problem Details:
In check_matching_type(), it checks the type state of the register in a
wrong order. When it's the percpu pointer, it should check the type for
the pointer, but it checks the CFA bit first and thought it has no type
in the stack slot. This resulted in no type info.
--------------------------------... | ```diff
diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c
index 88b5bcf2116f..15dfc2988e24 100644
--- a/tools/perf/arch/x86/annotate/instructions.c
+++ b/tools/perf/arch/x86/annotate/instructions.c
@@ -282,6 +282,7 @@ static void update_insn_state_x86(struct type_sta... |
922ec313f061cf75157d8e93fe16bc6397f6ea25 | Analyze and fix the following issue in the Linux kernel code: perf annotate-data: Fix missing constant copy | Problem Details:
I found it missed to copy the immediate constant when it moves the
register value. This could result in a wrong type inference since the
address for the per-cpu variable would be 0 always.
Fixes: eb9190afaed6afd5 ("perf annotate-data: Handle ADD instructions")
Signed-off-by: Namhyung Kim <namhyung@ke... | ```diff
diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c
index 7b7d462c6c6b..88b5bcf2116f 100644
--- a/tools/perf/arch/x86/annotate/instructions.c
+++ b/tools/perf/arch/x86/annotate/instructions.c
@@ -382,6 +382,7 @@ static void update_insn_state_x86(struct type_sta... |
073ef6b2041075e08c780db34f67e6daf884c9f8 | Analyze and fix the following issue in the Linux kernel code: s390/zcrypt_msgtype6: Cleanup debug code | Problem Details:
The dynamic debugging provides function names on request. So remove
all explicit function strings.
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
[dengler: fix indent]
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> | ```diff
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
index 215f257d2360..b64c9d9fc613 100644
--- a/drivers/s390/crypto/zcrypt_msgtype6.c
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -437,9 +437,8 @@ static int xcrb_msg_to_type6cprb_msgx(bool userspace, struct ap_message *... |
a7a88eeae310f2acb564bb3e747cd3739daccc10 | Analyze and fix the following issue in the Linux kernel code: s390/zcrypt_msgtype50: Cleanup debug code | Problem Details:
The dynamic debugging provides function names on request. So remove
all explicit function strings.
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> | ```diff
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c
index 3b39cb8f926d..adc65eddaa1e 100644
--- a/drivers/s390/crypto/zcrypt_msgtype50.c
+++ b/drivers/s390/crypto/zcrypt_msgtype50.c
@@ -427,7 +427,7 @@ static void zcrypt_msgtype50_receive(struct ap_queue *aq,
len = t8... |
1849850e8177b60ae67be4ae1a0bebaaaabcb4d7 | Analyze and fix the following issue in the Linux kernel code: s390/zcrypt_api: Cleanup debug code | Problem Details:
The dynamic debugging provides function names on request. So remove
all explicit function strings.
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> | ```diff
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 74036886ca87..f9a47b54c51a 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -715,7 +715,7 @@ static long zcrypt_rsa_modexpo(struct ap_perms *perms,
spin_unlock(&zcrypt_list_lock);
... |
ea31f0f6e251db7408cbe7500e97bc9d1694910c | Analyze and fix the following issue in the Linux kernel code: s390/ap_queue: Cleanup debug code | Problem Details:
The dynamic debugging provides function names on request. So remove
all explicit function strings.
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> | ```diff
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index 1f647ffd6f4d..8c878c5aa31f 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -171,8 +171,8 @@ static struct ap_queue_status ap_sm_recv(struct ap_queue *aq)
aq->queue_count = 0;
list_splice_... |
391b8a6ce12891815491fd51a00619cab2589fe4 | Analyze and fix the following issue in the Linux kernel code: s390/ap_bus: Cleanup debug code | Problem Details:
The dynamic debugging provides function names on request. So remove
all explicit function strings.
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> | ```diff
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 0998b17ecb37..ebc3fe2a7f40 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -733,7 +733,7 @@ static void ap_check_bindings_complete(void)
if (!completion_done(&ap_apqn_bindings_complete)) {
com... |
b4f5bd60d558f6ba451d7e76aa05782c07a182a3 | Analyze and fix the following issue in the Linux kernel code: s390/ap: Refine AP bus bindings complete processing | Problem Details:
With the rework of the AP bus scan and the introduction of
a bindings complete completion also the timing until the
userspace finally receives a AP bus binding complete uevent
had increased. Unfortunately this event triggers some important
jobs for preparation of KVM guests, for example the modificatio... | ```diff
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 0998b17ecb37..f9f682f19415 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -971,11 +971,16 @@ int ap_driver_register(struct ap_driver *ap_drv, struct module *owner,
char *name)
{
struct de... |
ad51126037a43c05f5f4af5eb262734e3e88ca59 | Analyze and fix the following issue in the Linux kernel code: soc: qcom: pmic_glink: Actually communicate when remote goes down | Problem Details:
When the pmic_glink state is UP and we either receive a protection-
domain (PD) notification indicating that the PD is going down, or that
the whole remoteproc is going down, it's expected that the pmic_glink
client instances are notified that their function has gone DOWN.
This is not what the code do... | ```diff
diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
index b218460219b7..9606222993fd 100644
--- a/drivers/soc/qcom/pmic_glink.c
+++ b/drivers/soc/qcom/pmic_glink.c
@@ -191,7 +191,7 @@ static void pmic_glink_state_notify_clients(struct pmic_glink *pg)
if (pg->pdr_state == SERVREG_SERVIC... |
11bb2ffb679399f99041540cf662409905179e3a | Analyze and fix the following issue in the Linux kernel code: usb: typec: ucsi: Move unregister out of atomic section | Problem Details:
Commit '9329933699b3 ("soc: qcom: pmic_glink: Make client-lock
non-sleeping")' moved the pmic_glink client list under a spinlock, as it
is accessed by the rpmsg/glink callback, which in turn is invoked from
IRQ context.
This means that ucsi_unregister() is now called from atomic context,
which isn't f... | ```diff
diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
index 53b176d04fbd..b218460219b7 100644
--- a/drivers/soc/qcom/pmic_glink.c
+++ b/drivers/soc/qcom/pmic_glink.c
@@ -112,8 +112,16 @@ EXPORT_SYMBOL_GPL(pmic_glink_client_register);
int pmic_glink_send(struct pmic_glink_client *client, vo... |
3568affcddd68743e25aa3ec1647d9b82797757b | Analyze and fix the following issue in the Linux kernel code: soc: qcom: pmic_glink: Fix race during initialization | Problem Details:
As pointed out by Stephen Boyd it is possible that during initialization
of the pmic_glink child drivers, the protection-domain notifiers fires,
and the associated work is scheduled, before the client registration
returns and as a result the local "client" pointer has been initialized.
The outcome of ... | ```diff
diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c
index 46f36dcb185c..7cf19a39d986 100644
--- a/drivers/power/supply/qcom_battmgr.c
+++ b/drivers/power/supply/qcom_battmgr.c
@@ -1385,12 +1385,16 @@ static int qcom_battmgr_probe(struct auxiliary_device *adev,
"fail... |
91191a6e50a2ff752da244493171037663536768 | Analyze and fix the following issue in the Linux kernel code: ALSA: hda: cs35l56: Don't use the device index as a calibration index | Problem Details:
The HDA driver cannot assume that the order that the devices are
specified in the cirrus,dev-index matches the order of calibration
entries.
Only a calibration entry with a matching silicon id will be used.
Fixes: cfa43aaa7948 ("ALSA: hda: cs35l56: Apply amp calibration from EFI data")
Signed-off-by:... | ```diff
diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c
index a9dfd62637cf..e3ac0e23ae32 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -1003,7 +1003,7 @@ int cs35l56_hda_common_probe(struct cs35l56_hda *cs35l56, int hid, int id)
goto err;
}
- cs35l56->base.c... |
e0ee967630c8ee67bb47a5b38d235cd5a8789c48 | Analyze and fix the following issue in the Linux kernel code: io_uring/kbuf: sanitize peek buffer setup | Problem Details:
Harden the buffer peeking a bit, by adding a sanity check for it having
a valid size. Outside of that, arg->max_len is a size_t, though it's
only ever set to a 32-bit value (as it's governed by MAX_RW_COUNT).
Bump our needed check to a size_t so we know it fits. Finally, cap the
calculated needed iov v... | ```diff
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c
index c95dc1736dd9..1af2bd56af44 100644
--- a/io_uring/kbuf.c
+++ b/io_uring/kbuf.c
@@ -218,10 +218,13 @@ static int io_ring_buffers_peek(struct io_kiocb *req, struct buf_sel_arg *arg,
buf = io_ring_head_to_buf(br, head, bl->mask);
if (arg->max_len) {
- int ... |
6690d6b52726bcb2b743466a1833e0b9f049b9d7 | Analyze and fix the following issue in the Linux kernel code: printk: Add helper for flush type logic | Problem Details:
There are many call sites where console flushing occur.
Depending on the system state and types of consoles, the flush
methods to use are different. A flush call site generally must
consider:
@have_boot_console
@have_nbcon_console
@have_legacy_console
@legacy_allow_panic_sync
is_printk_preferred(... | ```diff
diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h
index 6b61350a3026..ba2e0f1940bd 100644
--- a/kernel/printk/internal.h
+++ b/kernel/printk/internal.h
@@ -154,8 +154,81 @@ static inline bool console_is_usable(struct console *con, short flags) { return
#endif /* CONFIG_PRINTK */
extern bool h... |
eda25860bf6e71932311f1b5acdf8fc05cd84ff3 | Analyze and fix the following issue in the Linux kernel code: printk: Add notation to console_srcu locking | Problem Details:
kernel/printk/printk.c:284:5: sparse: sparse: context imbalance in
'console_srcu_read_lock' - wrong count at exit
include/linux/srcu.h:301:9: sparse: sparse: context imbalance in
'console_srcu_read_unlock' - unexpected unlock
Fixes: 6c4afa79147e ("printk: Prepare for SRCU console list protection")
Sig... | ```diff
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index c22b07049c38..93c67eb7ca9e 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -282,6 +282,7 @@ EXPORT_SYMBOL(console_list_unlock);
* Return: A cookie to pass to console_srcu_read_unlock().
*/
int console_srcu_read_lock(void... |
0ff8f3f0979559b0d7494d580f2597beab3f159b | Analyze and fix the following issue in the Linux kernel code: rust: kernel: fix typos in code comments | Problem Details:
Fix spelling mistakes in code comments.
Signed-off-by: Michael Vetter <jubalh@iodoru.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20240819205731.2163-1-jubalh@iodoru.org
[ Reworded slightly. - Miguel ]
Signed-off... | ```diff
diff --git a/rust/kernel/init/macros.rs b/rust/kernel/init/macros.rs
index 02ecedc4ae7a..9a0c4650ef67 100644
--- a/rust/kernel/init/macros.rs
+++ b/rust/kernel/init/macros.rs
@@ -145,7 +145,7 @@
//! }
//! }
//! // Implement the internal `PinData` trait that marks the pin-data struct as a pin-... |
5d88f98b2e73b2928cab7f8bd3d67777cb9ea1e7 | Analyze and fix the following issue in the Linux kernel code: docs: rust: remove unintended blockquote in Coding Guidelines | Problem Details:
An unordered list in coding-guidelines.rst was indented, producing
a blockquote around it and making it look more indented than expected.
Remove the indentation to only output an unordered list.
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://github.com/Rust-for-Linux/linux/issues/1063
Fi... | ```diff
diff --git a/Documentation/rust/coding-guidelines.rst b/Documentation/rust/coding-guidelines.rst
index 05542840b16c..329b070a1d47 100644
--- a/Documentation/rust/coding-guidelines.rst
+++ b/Documentation/rust/coding-guidelines.rst
@@ -145,32 +145,32 @@ This is how a well-documented Rust function may look like:
... |
fd764e74e5b75512be1b55ec9680a6c35885cc63 | Analyze and fix the following issue in the Linux kernel code: rust: block: fix wrong usage of lockdep API | Problem Details:
When allocating `struct gendisk`, `GenDiskBuilder` is using a dynamic
lock class key without registering the key. This is an incorrect use of
the API, which causes a `WARN` trace.
Fix the issue by using a static lock class key, which is more appropriate
for the situation anyway.
Fixes: 3253aba3408a (... | ```diff
diff --git a/rust/kernel/block/mq/gen_disk.rs b/rust/kernel/block/mq/gen_disk.rs
index f548a6199847..708125dce96a 100644
--- a/rust/kernel/block/mq/gen_disk.rs
+++ b/rust/kernel/block/mq/gen_disk.rs
@@ -6,8 +6,8 @@
//! C header: [`include/linux/blk_mq.h`](srctree/include/linux/blk_mq.h)
use crate::block::mq... |
95f6580352a7225e619551febb83595bcb77ab17 | Analyze and fix the following issue in the Linux kernel code: powercap: intel_rapl: Fix off by one in get_rpi() | Problem Details:
The rp->priv->rpi array is either rpi_msr or rpi_tpmi which have
NR_RAPL_PRIMITIVES number of elements. Thus the > needs to be >=
to prevent an off by one access.
Fixes: 98ff639a7289 ("powercap: intel_rapl: Support per Interface primitive information")
Signed-off-by: Dan Carpenter <dan.carpenter@lina... | ```diff
diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c
index d110c5da5cfe..a63a4f04063e 100644
--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -740,7 +740,7 @@ static struct rapl_primitive_info *get_rpi(struct rapl_package *rp, int prim)... |
a8efd8ce280996fe29f2564f705e96e18da3fa62 | Analyze and fix the following issue in the Linux kernel code: drm/i915/psr: Prevent Panel Replay if CRC calculation is enabled | Problem Details:
Similarly as for PSR2 CRC calculation seems to timeout when Panel Replay is
enabled. Fix this by falling back to PSR if CRC calculation is enabled.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2266
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 9cb1cdaaeefa..572dcdf77453 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1586,6 +1586,12 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
... |
90d4fed5b273155c378b1d37595f2209f0a92bed | Analyze and fix the following issue in the Linux kernel code: powerpc/64: Convert patch_instruction() to patch_u32() | Problem Details:
This use of patch_instruction() is working on 32 bit data, and can fail
if the data looks like a prefixed instruction and the extra write
crosses a page boundary. Use patch_u32() to fix the write size.
Fixes: 8734b41b3efe ("powerpc/module_64: Fix livepatching for RO modules")
Link: https://lore.kernel... | ```diff
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 7112adc597a8..e9bab599d0c2 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -651,12 +651,11 @@ static inline int create_stub(const Elf64_Shdr *sechdrs,
// func_desc_t is 8 bytes if ABIv2, ... |
a9556637a23311dea96f27fa3c3e5bfba0b38ae4 | Analyze and fix the following issue in the Linux kernel code: drm/i915: move rawclk from runtime to display runtime info | Problem Details:
It's mostly about display, so move it under display. This should also
fix rawclk freq initialization in the xe driver.
v2: Change the init location
Link: https://lore.kernel.org/r/20240819133138.147511-2-maarten.lankhorst@linux.intel.com
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: V... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c
index 18933b003cbe..9e05745d797d 100644
--- a/drivers/gpu/drm/i915/display/intel_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_backlight.c
@@ -1011,7 +1011,7 @@ static u32 cnp_hz_to_pwm(struct int... |
c049acee3c71cfc26c739f82617a84e13e471a45 | Analyze and fix the following issue in the Linux kernel code: selftests/ftrace: Fix test to handle both old and new kernels | Problem Details:
The function "scheduler_tick" was renamed to "sched_tick" and a selftest
that used that function for testing function trace filtering used that
function as part of the test.
But the change causes it to fail when run on older kernels. As tests
should not fail on older kernels, add a check to see which ... | ```diff
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
index 073a748b9380..263f6b798c85 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
+++ b/tools/testing/selftests/ftrace/test.d/... |
99338cc1e47187c3efdd39cda2a31500d0f2305d | Analyze and fix the following issue in the Linux kernel code: kselftest: timers: Fix const correctness | Problem Details:
Make timespec pointers, pointers to const in checklist function. As a
consequence, make list parameter in checklist function pointer to const
as well. Const-correctness increases readability.
Improvement was found by running cppcheck tool on the patched file as
follows:
```
cppcheck --enable=all \
to... | ```diff
diff --git a/tools/testing/selftests/timers/threadtest.c b/tools/testing/selftests/timers/threadtest.c
index 76b38e41d9c7..d5564bbf0e50 100644
--- a/tools/testing/selftests/timers/threadtest.c
+++ b/tools/testing/selftests/timers/threadtest.c
@@ -38,10 +38,10 @@ struct timespec global_list[LISTSIZE];
int listc... |
d4bc0a264fb482b019c84fbc7202dd3cab059087 | Analyze and fix the following issue in the Linux kernel code: ata: pata_macio: Use WARN instead of BUG | Problem Details:
The overflow/underflow conditions in pata_macio_qc_prep() should never
happen. But if they do there's no need to kill the system entirely, a
WARN and failing the IO request should be sufficient and might allow the
system to keep running.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-... | ```diff
diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index 1cb8d24b088f..f2f36e55a1f4 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -554,7 +554,8 @@ static enum ata_completion_errors pata_macio_qc_prep(struct ata_queued_cmd *qc)
while (sg_len) {
/* table overflow s... |
822c8020aebcf5804a143b891e34f29873fee5e2 | Analyze and fix the following issue in the Linux kernel code: ata: pata_macio: Fix DMA table overflow | Problem Details:
Kolbjørn and Jonáš reported that their 32-bit PowerMacs were crashing
in pata-macio since commit 09fe2bfa6b83 ("ata: pata_macio: Fix
max_segment_size with PAGE_SIZE == 64K").
For example:
kernel BUG at drivers/ata/pata_macio.c:544!
Oops: Exception in kernel mode, sig: 5 [#1]
BE PAGE_SIZE=4K MMU... | ```diff
diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index 1b85e8bf4ef9..1cb8d24b088f 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -208,6 +208,19 @@ static const char* macio_ata_names[] = {
/* Don't let a DMA segment go all the way to 64K */
#define MAX_DBDMA_SEG 0xff00... |
9cead81eff635e3b3cbce51b40228f3bdc6f2b8c | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix eGPU hotplug regression | Problem Details:
The driver needs to wait for the on board firmware
to finish its initialization before probing the card.
Commit 959056982a9b ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
switched from using msleep() to using usleep_range() which
seems to have caused init failures on some navi1... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index ac108fca64fe..7b561e8e3caf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -278,7 +278,7 @@ static int amdgpu_discovery_read_binary_f... |
e3e4bf58bad1576ac732a1429f53e3d4bfb82b4b | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu/sdma5.2: limit wptr workaround to sdma 5.2.1 | Problem Details:
The workaround seems to cause stability issues on other
SDMA 5.2.x IPs.
Fixes: a03ebf116303 ("drm/amdgpu/sdma5.2: Update wptr registers as well as doorbell")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3556
Acked-by: Ruijing Dong <ruijing.dong@amd.com>
Signed-off-by: Alex Deucher <alexande... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
index af1e90159ce3..2e72d445415f 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
@@ -176,14 +176,16 @@ static void sdma_v5_2_ring_set_wptr(struct amdgpu_ring *ring)
DR... |
0b43312902d165c4c8429cd49e8c91479f52b7c4 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fixing rlc firmware loading failure issue | Problem Details:
Skip rlc firmware validation to ignore firmware header size mismatch issues.
This restores the workaround added in
commit 849e133c973c ("drm/amdgpu: Fix the null pointer when load rlc firmware")
Fixes: 3af2c80ae2f5 ("drm/amdgpu: refine gfx10 firmware loading")
Closes: https://gitlab.freedesktop.org/dr... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 2957702fca0c..e444e621ddaa 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4116,6 +4116,7 @@ static void gfx_v10_0_check_gfxoff_flag(struct amdgpu_device *adev)... |
88c511dea151b931ba4873119b1b3555aac0ce53 | Analyze and fix the following issue in the Linux kernel code: drm/amd/gfx11: move the gfx mutex into the caller | Problem Details:
Otherwise we can fail to drop the software mutex when
we fail to take the hardware mutex.
Fixes: 76acba7b7f12 ("drm/amdgpu/gfx11: add a mutex for the gfx semaphore")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Alex Deucher ... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 5685aee479df..ee8604722467 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4747,8 +4747,6 @@ int gfx_v11_0_request_gfx_index_mutex(struct amdgpu_device *adev,
... |
c69b07f7bbc905022491c45097923d3487479529 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix eGPU hotplug regression | Problem Details:
The driver needs to wait for the on board firmware
to finish its initialization before probing the card.
Commit 959056982a9b ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
switched from using msleep() to using usleep_range() which
seems to have caused init failures on some navi1... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index ac108fca64fe..7b561e8e3caf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -278,7 +278,7 @@ static int amdgpu_discovery_read_binary_f... |
e389eefe34cebc6219dbe76a923b342b2f31e3ba | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Promote DC to 3.2.297 | Problem Details:
- Various DML 2.1 fixes
- Fix module unload
- Fix construct_phy with MXM connector
- Support UHBR10 link rate on eDP
- Revert updated DCCG wrappers
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Martin Leung <Martin.Leung@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel W... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 3de311533571..5bbc7d2daca6 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -55,7 +55,7 @@ struct aux_payload;
struct set_config_cmd_payload;
struct dmub_notification;
-#... |
20b5a8f9f4670a8503aa9fa95ca632e77c6bf55d | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: fix double free issue during amdgpu module unload | Problem Details:
Flexible endpoints use DIGs from available inflexible endpoints,
so only the encoders of inflexible links need to be freed.
Otherwise, a double free issue may occur when unloading the
amdgpu module.
[ 279.190523] RIP: 0010:__slab_free+0x152/0x2f0
[ 279.190577] Call Trace:
[ 279.190580] <TASK>
[ 2... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_factory.c b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
index 85fd6e422238..5e1b5ab9fbc6 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_factory.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
@@ -385,7 +385,7 @@ static void link_dest... |
ec9e2e7acc6dabb8f00c2c60785931310caaa883 | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Fix construct_phy with MXM connector | Problem Details:
[Why/How]
The call to construct_phy will fail in cases where connector type is
MXM, and the dc_link won't be properly created/initialized.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wh... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_factory.c b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
index 8246006857b3..85fd6e422238 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_factory.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
@@ -524,6 +524,7 @@ static bool construct... |
8783a18409b48455b3a63f0cd930c7c88beee93d | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: remove an extraneous call for checking dchub clock | Problem Details:
when removing the amdgpu module and reinserting it, a call trace is
triggered:
[ 334.230602] RIP: 0010:hubbub2_get_dchub_ref_freq+0xbb/0xe0 [amdgpu]
[ 334.230807] Code: 25 28 00 00 00 75 3c 48 8d 65 f0 5b 41 5c 5d 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 45 31 db e9 55 a1 ca de <0f> ... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index b6377efc6253..ef585a89847b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -342,11 +342,6 @@ struct resource_pool *dc... |
9de60462cdba60f575f97ca2655533b35273c715 | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Update HPO I/O When Handling Link Retrain Automation Request | Problem Details:
[WHY]
Previous multi-display HPO fix moved where HPO I/O enable/disable is performed.
The codepath now taken to enable/disable HPO I/O is not used for compliance
test automation, meaning that if a compliance box being driven at a DP1 rate
requests retrain at UHBR, HPO I/O will remain off if it was prev... | ```diff
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index b38340c690c6..b6377efc6253 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -5303,3 +5303,16 @@ int resource_calculate... |
234eebe16138f94de3046f60c52763dc17fe5fed | Analyze and fix the following issue in the Linux kernel code: drm/amdkfd: APIs to stop/start KFD scheduling | Problem Details:
Provide amdgpu_amdkfd_stop_sched() for amdgpu to stop KFD scheduling
compute work on HIQ. amdgpu_amdkfd_start_sched() resumes the scheduling.
When amdgpu_amdkfd_stop_sched is called, KFD will unmap queues from
runlist. If users send ioctls to KFD to create queues, they'll be added
but those queues won'... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index c272461d70a9..64a989cbc301 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -887,3 +887,21 @@ free_ring_funcs:
return r;
}
+
+/* Stop schedul... |
335288315af18c0def7f47a37fe7eaa782c98f6d | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu/gfx9: Add cleaner shader for GFX9.4.3 | Problem Details:
This commit adds the cleaner shader microcode for GFX9.4.3 GPUs. The
cleaner shader is a piece of GPU code that is used to clear or
initialize certain GPU resources, such as Local Data Share (LDS), Vector
General Purpose Registers (VGPRs), and Scalar General Purpose Registers
(SGPRs).
Clearing these r... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3_cleaner_shader.asm b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3_cleaner_shader.asm
new file mode 100644
index 000000000000..d5325ef80ab0
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3_cleaner_shader.asm
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: MIT *... |
d361ad5d2fc0e4d59d5d538092c9b37889756642 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: Add sysfs interface for running cleaner shader | Problem Details:
This patch adds a new sysfs interface for running the cleaner shader on
AMD GPUs. The cleaner shader is used to clear GPU memory before it's
reused, which can help prevent data leakage between different processes.
The new sysfs file is write-only and is named `run_cleaner_shader`.
Write the number of ... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 2e35fc2577f9..76f77cf562af 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -24,10 +24,13 @@
*/
#include <linux/firmware.h>
+#include <linux/pm_runtime.h... |
e189be9b2e3820c88164d95090f1fd6343cd77fc | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: Add enforce_isolation sysfs attribute | Problem Details:
This commit adds a new sysfs attribute 'enforce_isolation' to control
the 'enforce_isolation' setting per GPU. The attribute can be read and
written, and accepts values 0 (disabled) and 1 (enabled).
When 'enforce_isolation' is enabled, reserved VMIDs are allocated for
each ring. When it's disabled, th... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 0dceeea235cf..aa97bbefe934 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1164,6 +1164,8 @@ struct amdgpu_device {
bool debug_enable_ras_aca;
... |
f67fbacd923f280c55b9e26e49650331446ef335 | Analyze and fix the following issue in the Linux kernel code: ext4: fix macro definition error of EXT4_DIRENT_HASH and EXT4_DIRENT_MINOR_HASH | Problem Details:
The macro parameter 'entry' of EXT4_DIRENT_HASH and
EXT4_DIRENT_MINOR_HASH was not used, but rather the variable 'de' was
directly used, which may be a local variable inside a function that
calls the macros. Fortunately, all callers have passed in 'de' so
far, so this bug didn't have an effect.
Signe... | ```diff
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 3d57acae0925..5845e4aa091a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2338,9 +2338,9 @@ struct ext4_dir_entry_2 {
((struct ext4_dir_entry_hash *) \
(((void *)(entry)) + \
((8 + (entry)->name_len + EXT4_DIR_ROUND) & ~EXT4_DIR_ROUND)))
-#define ... |
985b67cd86392310d9e9326de941c22fc9340eec | Analyze and fix the following issue in the Linux kernel code: ext4: filesystems without casefold feature cannot be mounted with siphash | Problem Details:
When mounting the ext4 filesystem, if the default hash version is set to
DX_HASH_SIPHASH but the casefold feature is not set, exit the mounting.
Reported-by: syzbot+340581ba9dceb7e06fb3@syzkaller.appspotmail.com
Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com>
Link: https://patch.msgid.link/2024060501... | ```diff
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e72145c4ae5a..25cd0d662e31 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3582,6 +3582,13 @@ int ext4_feature_set_ok(struct super_block *sb, int readonly)
"mounted without CONFIG_UNICODE");
return 0;
}
+ if (EXT4_SB(sb)->s_es->s_def_hash_ver... |
b2c160f4f3cfe9334b3e6bb52cb89a3a20ef0385 | Analyze and fix the following issue in the Linux kernel code: f2fs: atomic: fix to forbid dio in atomic_file | Problem Details:
atomic write can only be used via buffered IO, let's fail direct IO on
atomic_file and return -EOPNOTSUPP.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> | ```diff
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 0bfcc1bf5832..81d0b86c5718 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2162,6 +2162,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate)
goto out;
f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
+ f2fs_down_write(&fi->i_gc_rwse... |
f785cec298c95d00058560c0715233294a04b8f3 | Analyze and fix the following issue in the Linux kernel code: f2fs: compress: don't redirty sparse cluster during {,de}compress | Problem Details:
In f2fs_do_write_data_page, when the data block is NULL_ADDR, it skips
writepage considering that it has been already truncated.
This results in an infinite loop as the PAGECACHE_TAG_TOWRITE tag is not
cleared during the writeback process for a compressed file including
NULL_ADDR in compress_mode=user.... | ```diff
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 990b93689b46..f55d54bb12f4 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -945,7 +945,7 @@ static int __f2fs_get_cluster_blocks(struct inode *inode,
unsigned int cluster_size = F2FS_I(inode)->i_cluster_size;
int count, i;
- for (i = 1... |
43aec4d01bd2ce961817a777b3846f8318f398e4 | Analyze and fix the following issue in the Linux kernel code: f2fs: check discard support for conventional zones | Problem Details:
As the helper function f2fs_bdev_support_discard() shows, f2fs checks if
the target block devices support discard by calling
bdev_max_discard_sectors() and bdev_is_zoned(). This check works well
for most cases, but it does not work for conventional zones on zoned
block devices. F2fs assumes that zoned ... | ```diff
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 3aee71c9f3c6..ed070b9ef91b 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1282,6 +1282,13 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
wait_list, issued);
return 0;
}
+
+ /*
+ * Issue discard for conventional z... |
c7f114d864ac91515bb07ac271e9824a20f5ed95 | Analyze and fix the following issue in the Linux kernel code: f2fs: fix to avoid use-after-free in f2fs_stop_gc_thread() | Problem Details:
syzbot reports a f2fs bug as below:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
print_report+0xe8/0x550 mm/kasan/report.c:491
kasan_report+0x143/0x180 mm/kasan/report.c:601
kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
instrument_atomic_read_w... | ```diff
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 51fd5063a69c..0e0189084462 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3508,7 +3508,7 @@ int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
void f2fs_truncat... |
ebd3309aec6271c4616573b0cb83ea25e623070a | Analyze and fix the following issue in the Linux kernel code: f2fs: atomic: fix to truncate pagecache before on-disk metadata truncation | Problem Details:
We should always truncate pagecache while truncating on-disk data.
Fixes: a46bebd502fe ("f2fs: synchronize atomic write aborts")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> | ```diff
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 73f70a7a2567..5fb8e4242c7a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2195,6 +2195,10 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate)
F2FS_I(fi->cow_inode)->atomic_inode = inode;
} else {
/* Reuse the already create... |
a4d7f2b3238fd5f76b9e6434a0bd5d2e29049cff | Analyze and fix the following issue in the Linux kernel code: f2fs: fix to wait page writeback before setting gcing flag | Problem Details:
Soft IRQ Thread
- f2fs_write_end_io
- f2fs_defragment_range
- set_page_private_gcing
- type = WB_DATA_TYPE(page, false);
: assign type w/ F2FS_WB_CP_DATA
due to page_private_gcing() is true
- dec_page_count() w/ wrong type
- end_page_writeback()
Value of F2FS_WB_CP_DATA reference ... | ```diff
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 082e81ba09b9..73f70a7a2567 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2807,6 +2807,8 @@ do_map:
goto clear_out;
}
+ f2fs_wait_on_page_writeback(page, DATA, true, true);
+
set_page_dirty(page);
set_page_private_gcing(page);
f2f... |
8c1b787938fd86bab27a1492fa887408c75fec2b | Analyze and fix the following issue in the Linux kernel code: f2fs: Create COW inode from parent dentry for atomic write | Problem Details:
The i_pino in f2fs_inode_info has the previous parent's i_ino when inode
was renamed, which may cause f2fs_ioc_start_atomic_write to fail.
If file_wrong_pino is true and i_nlink is 1, then to find a valid pino,
we should refer to the dentry from inode.
To resolve this issue, let's get parent inode usi... | ```diff
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2c591fbc75a9..082e81ba09b9 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2127,7 +2127,6 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate)
struct mnt_idmap *idmap = file_mnt_idmap(filp);
struct f2fs_inode_info *fi = F2FS_I(in... |
4f5a100f87f32cb65d4bb1ad282a08c92f6f591e | Analyze and fix the following issue in the Linux kernel code: f2fs: Require FMODE_WRITE for atomic write ioctls | Problem Details:
The F2FS ioctls for starting and committing atomic writes check for
inode_owner_or_capable(), but this does not give LSMs like SELinux or
Landlock an opportunity to deny the write access - if the caller's FSUID
matches the inode's UID, inode_owner_or_capable() immediately returns true.
There are scena... | ```diff
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index bddcb2cd945a..2c591fbc75a9 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2131,6 +2131,9 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate)
loff_t isize;
int ret;
+ if (!(filp->f_mode & FMODE_WRITE))
+ return -EBADF;
+
if... |
48e50dcbcbaaf713d82bf2da5c16aeced94ad07d | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: avoid possible UaF when selecting endp | Problem Details:
select_local_address() and select_signal_address() both select an
endpoint entry from the list inside an RCU protected section, but return
a reference to it, to be read later on. If the entry is dereferenced
after the RCU unlock, reading info could cause a Use-after-Free.
A simple solution is to copy ... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index a2e37ab1c40f..3e4ad801786f 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -143,11 +143,13 @@ static bool lookup_subflow_by_daddr(const struct list_head *list,
return false;
}
-static struct mptcp_pm_addr_entry *
+static... |
4878f9f8421f4587bee7b232c1c8a9d3a7d4d782 | Analyze and fix the following issue in the Linux kernel code: selftests: mptcp: join: validate fullmesh endp on 1st sf | Problem Details:
This case was not covered, and the wrong ID was set before the previous
commit.
The rest is not modified, it is just that it will increase the code
coverage.
The right address ID can be verified by looking at the packet traces. We
could automate that using Netfilter with some cBPF code for example, b... | ```diff
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index f609c02c6123..89e553e0e0c2 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3059,6 +3059,7 @@ fullmesh_tests()
pm_nl_set_l... |
09355f7abb9fbfc1a240be029837921ea417bf4f | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: fullmesh: select the right ID later | Problem Details:
When reacting upon the reception of an ADD_ADDR, the in-kernel PM first
looks for fullmesh endpoints. If there are some, it will pick them,
using their entry ID.
It should set the ID 0 when using the endpoint corresponding to the
initial subflow, it is a special case imposed by the MPTCP specs.
Note ... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index d0a80f537fc3..a2e37ab1c40f 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -636,6 +636,7 @@ static unsigned int fill_local_addresses_vec(struct mptcp_sock *msk,
{
struct sock *sk = (struct sock *)msk;
struct mptcp_pm_add... |
ca6e55a703ca2894611bb5c5bca8bfd2290fd91e | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: only in-kernel cannot have entries with ID 0 | Problem Details:
The ID 0 is specific per MPTCP connections. The per netns entries cannot
have this special ID 0 then.
But that's different for the userspace PM where the entries are per
connection, they can then use this special ID 0.
Fixes: f40be0db0b76 ("mptcp: unify pm get_flags_and_ifindex_by_id")
Cc: stable@vge... | ```diff
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 925123e99889..3e6e0f5510bb 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -434,9 +434,6 @@ int mptcp_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id
*flags = 0;
*ifindex = 0;
- if (!id)
- return 0;
-
if (mptcp_pm_is_userspac... |
0137a3c7c2ea3f9df8ebfc65d78b4ba712a187bb | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: check add_addr_accept_max before accepting new ADD_ADDR | Problem Details:
The limits might have changed in between, it is best to check them
before accepting new ADD_ADDR.
Fixes: d0876b2284cf ("mptcp: add the incoming RM_ADDR support")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 882781571c7b..28a9a3726146 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -848,8 +848,8 @@ static void mptcp_pm_nl_rm_addr_or_subflow(struct mptcp_sock *msk,
/* Note: if the subflow has been closed before, this
* ad... |
1c1f721375989579e46741f59523e39ec9b2a9bd | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: only decrement add_addr_accepted for MPJ req | Problem Details:
Adding the following warning ...
WARN_ON_ONCE(msk->pm.add_addr_accepted == 0)
... before decrementing the add_addr_accepted counter helped to find a
bug when running the "remove single subflow" subtest from the
mptcp_join.sh selftest.
Removing a 'subflow' endpoint will first trigger a RM_ADDR, the... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 4cf7cc851f80..882781571c7b 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -829,7 +829,7 @@ static void mptcp_pm_nl_rm_addr_or_subflow(struct mptcp_sock *msk,
mptcp_close_ssk(sk, ssk, subflow);
spin_lock_bh(&msk->pm.l... |
322ea3778965da72862cca2a0c50253aacf65fe6 | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: only mark 'subflow' endp as available | Problem Details:
Adding the following warning ...
WARN_ON_ONCE(msk->pm.local_addr_used == 0)
... before decrementing the local_addr_used counter helped to find a bug
when running the "remove single address" subtest from the mptcp_join.sh
selftests.
Removing a 'signal' endpoint will trigger the removal of all subfl... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 44fc1c5959ac..4cf7cc851f80 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -833,10 +833,10 @@ static void mptcp_pm_nl_rm_addr_or_subflow(struct mptcp_sock *msk,
if (rm_type == MPTCP_MIB_RMSUBFLOW)
__MPTCP_INC_STATS(s... |
f448451aa62d54be16acb0034223c17e0d12bc69 | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: remove mptcp_pm_remove_subflow() | Problem Details:
This helper is confusing. It is in pm.c, but it is specific to the
in-kernel PM and it cannot be used by the userspace one. Also, it simply
calls one in-kernel specific function with the PM lock, while the
similar mptcp_pm_remove_addr() helper requires the PM lock.
What's left is the pr_debug(), which... | ```diff
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 23bb89c94e90..925123e99889 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -60,16 +60,6 @@ int mptcp_pm_remove_addr(struct mptcp_sock *msk, const struct mptcp_rm_list *rm_
return 0;
}
-int mptcp_pm_remove_subflow(struct mptcp_sock *msk, const struct mp... |
e06959e9eebdfea4654390f53b65cff57691872e | Analyze and fix the following issue in the Linux kernel code: selftests: mptcp: join: test for flush/re-add endpoints | Problem Details:
After having flushed endpoints that didn't cause the creation of new
subflows, it is important to check endpoints can be re-created, re-using
previously used IDs.
Before the previous commit, the client would not have been able to
re-create the subflow that was previously rejected.
The 'Fixes' tag her... | ```diff
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index fbb0174145ad..f609c02c6123 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3651,6 +3651,36 @@ endpoint_tests()
chk_rm_nr ... |
ef34a6ea0cab1800f4b3c9c3c2cefd5091e03379 | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: re-using ID of unused flushed subflows | Problem Details:
If no subflows are attached to the 'subflow' endpoints that are being
flushed, the corresponding addr IDs will not be marked as available
again.
Mark all ID as being available when flushing all the 'subflow'
endpoints, and reset local_addr_used counter to cover these cases.
Note that mptcp_pm_remove_... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 8b232a210a06..2c26696b820e 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1623,8 +1623,15 @@ static void mptcp_pm_remove_addrs_and_subflows(struct mptcp_sock *msk,
mptcp_pm_remove_addr(msk, &alist);
spin_unlock_bh(&ms... |
65fb58afa341ad68e71e5c4d816b407e6a683a66 | Analyze and fix the following issue in the Linux kernel code: selftests: mptcp: join: check re-using ID of closed subflow | Problem Details:
This test extends "delete and re-add" to validate the previous commit. A
new 'subflow' endpoint is added, but the subflow request will be
rejected. The result is that no subflow will be established from this
address.
Later, the endpoint is removed and re-added after having cleared the
firewall rule. B... | ```diff
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 25077ccf31d2..fbb0174145ad 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -436,9 +436,10 @@ reset_with_tcp_filter()
local ... |
edd8b5d868a4d459f3065493001e293901af758d | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: re-using ID of unused removed subflows | Problem Details:
If no subflow is attached to the 'subflow' endpoint that is being
removed, the addr ID will not be marked as available again.
Mark the linked ID as available when removing the 'subflow' endpoint if
no subflow is attached to it.
While at it, the local_addr_used counter is decremented if the ID was
mar... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 26f0329e16bb..8b232a210a06 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1469,8 +1469,17 @@ static int mptcp_nl_remove_subflow_and_signal_addr(struct net *net,
remove_subflow = lookup_subflow_by_saddr(&msk->conn_list, a... |
a13d5aad4dd9a309eecdc33cfd75045bd5f376a3 | Analyze and fix the following issue in the Linux kernel code: selftests: mptcp: join: check re-using ID of unused ADD_ADDR | Problem Details:
This test extends "delete re-add signal" to validate the previous
commit. An extra address is announced by the server, but this address
cannot be used by the client. The result is that no subflow will be
established to this address.
Later, the server will delete this extra endpoint, and set a new one,... | ```diff
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 9ea6d698e9d3..25077ccf31d2 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3601,9 +3601,11 @@ endpoint_tests()
# remove an... |
e255683c06df572ead96db5efb5d21be30c0efaa | Analyze and fix the following issue in the Linux kernel code: mptcp: pm: re-using ID of unused removed ADD_ADDR | Problem Details:
If no subflow is attached to the 'signal' endpoint that is being
removed, the addr ID will not be marked as available again.
Mark the linked ID as available when removing the address entry from the
list to cover this case.
Fixes: b6c08380860b ("mptcp: remove addr and subflow in PM netlink")
Cc: stabl... | ```diff
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 4cae2aa7be5c..26f0329e16bb 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1431,7 +1431,10 @@ static bool mptcp_pm_remove_anno_addr(struct mptcp_sock *msk,
ret = remove_anno_list_by_saddr(msk, addr);
if (ret || force) {
... |
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