id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
492c5d455969fc2e829f26ed4c83487b068f0dd7 | Analyze and fix the following issue in the Linux kernel code: block: bio-integrity: directly map user buffers | Problem Details:
Passthrough commands that utilize metadata currently need to bounce the
user space buffer through the kernel. Add support for mapping user space
directly so that we can avoid this costly overhead. This is similar to
how the normal bio data payload utilizes user addresses with
bio_map_user_iov().
If th... | ```diff
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index ec8ac8cf6e1b..feef615e2c9c 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -69,15 +69,15 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio,
memset(bip, 0, sizeof(*bip));
+ /* always report as many vecs as... |
16b55b1f2269962fb6b5154b8bf43f37c9a96637 | Analyze and fix the following issue in the Linux kernel code: net/tg3: fix race condition in tg3_reset_task() | Problem Details:
When an EEH error is encountered by a PCI adapter, the EEH driver
modifies the PCI channel's state as shown below:
enum {
/* I/O channel is in normal state */
pci_channel_io_normal = (__force pci_channel_state_t) 1,
/* I/O to channel is blocked */
pci_channel_io_frozen = (_... | ```diff
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 48b6191efa56..f52830dfb26a 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6474,6 +6474,14 @@ static void tg3_dump_state(struct tg3 *tp)
int i;
u32 *regs;
+ /* If it ... |
ac9c05e0e453cfcab2866f6d28f257590e4f66e5 | Analyze and fix the following issue in the Linux kernel code: bpf: Add kfunc bpf_get_file_xattr | Problem Details:
It is common practice for security solutions to store tags/labels in
xattrs. To implement similar functionalities in BPF LSM, add new kfunc
bpf_get_file_xattr().
The first use case of bpf_get_file_xattr() is to implement file
verifications with asymmetric keys. Specificially, security applications
cou... | ```diff
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index c284a4ad0315..1648bde28f01 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -24,6 +24,7 @@
#include <linux/key.h>
#include <linux/verification.h>
#include <linux/namei.h>
+#include <linux/fileattr.h>
#include <ne... |
fa2bbff7b0b4e211fec5e5686ef96350690597b5 | Analyze and fix the following issue in the Linux kernel code: md: synchronize flush io with array reconfiguration | Problem Details:
Currently rcu is used to protect iterating rdev from submit_flushes():
submit_flushes remove_and_add_spares
synchronize_rcu
pers->hot_remove_disk()
rcu_read_lock()
rdev_for_each_rcu
if (rdev->raid_disk >= 0)
rdev->radi_disk = -1;
atomic_inc(&rdev->nr_pending)
rcu_read_unlock()
... | ```diff
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 71b3397dea47..4e9fe5cbeedc 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -529,6 +529,9 @@ static void md_end_flush(struct bio *bio)
rdev_dec_pending(rdev, mddev);
if (atomic_dec_and_test(&mddev->flush_pending)) {
+ /* The pair is percpu_ref_get... |
96ab215b2d5edc39310c00f50b33d8ab72ac3fe3 | Analyze and fix the following issue in the Linux kernel code: drm/msm/a6xx: add QMP dependency | Problem Details:
When QMP is in a loadable module, the A6xx GPU driver fails to link
as built-in:
x86_64-linux-ld: drivers/gpu/drm/msm/adreno/a6xx_gmu.o: in function `a6xx_gmu_resume':
a6xx_gmu.c:(.text+0xd62): undefined reference to `qmp_send'
Add the usual dependency that still allows compiling without QMP but
othe... | ```diff
diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 6309a857ca31..ad70b611b44f 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -6,6 +6,7 @@ config DRM_MSM
depends on ARCH_QCOM || SOC_IMX5 || COMPILE_TEST
depends on COMMON_CLK
depends on IOMMU_SUPPORT
... |
e6c0de5f445091d250b75dabc4c60dd2643b8c98 | Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: try multirect based on mdp clock limits | Problem Details:
It's certainly possible that for large resolutions a single DPU SSPP
cannot process the image without exceeding the MDP clock limits but
it can still process it in multirect mode because the source rectangles
will get divided and can fall within the MDP clock limits.
If the SSPP cannot process the ima... | ```diff
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 3eef5e025e12..1e0da38c6f2a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -824,6 +824,8 @@ static int dpu_plane_atomic_check(struct drm_plane *plane... |
dfce9cb3140592b886838e06f3e0c25fea2a9cae | Analyze and fix the following issue in the Linux kernel code: bpf: Fix a verifier bug due to incorrect branch offset comparison with cpu=v4 | Problem Details:
Bpf cpu=v4 support is introduced in [1] and Commit 4cd58e9af8b9
("bpf: Support new 32bit offset jmp instruction") added support for new
32bit offset jmp instruction. Unfortunately, in function
bpf_adj_delta_to_off(), for new branch insn with 32bit offset, the offset
(plus/minor a small delta) compares ... | ```diff
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index cd3afe57ece3..fe254ae035fe 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -371,14 +371,18 @@ static int bpf_adj_delta_to_imm(struct bpf_insn *insn, u32 pos, s32 end_old,
static int bpf_adj_delta_to_off(struct bpf_insn *insn, u32 pos, s32 end_o... |
8570c27932e132d2663e8120311891deb2a853de | Analyze and fix the following issue in the Linux kernel code: drm/syncobj: Add deadline support for syncobj waits | Problem Details:
Add a new flag to let userspace provide a deadline as a hint for syncobj
and timeline waits. This gives a hint to the driver signaling the
backing fences about how soon userspace needs it to compete work, so it
can adjust GPU frequency accordingly. An immediate deadline can be
given to provide someth... | ```diff
diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 01da6789d044..cbb65b7ba425 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -126,6 +126,11 @@
* synchronize between the two.
* This requirement is inherited from the Vulkan fence API.
*
+ * If... |
c467e97f079f0019870c314996fae952cc768e82 | Analyze and fix the following issue in the Linux kernel code: md/raid6: use valid sector values to determine if an I/O should wait on the reshape | Problem Details:
During a reshape or a RAID6 array such as expanding by adding an additional
disk, I/Os to the region of the array which have not yet been reshaped can
stall indefinitely. This is from errors in the stripe_ahead_of_reshape
function causing md to think the I/O is to a region in the actively
undergoing th... | ```diff
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index dc031d42f53b..26e1e8a5e941 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5892,11 +5892,11 @@ static bool stripe_ahead_of_reshape(struct mddev *mddev, struct r5conf *conf,
int dd_idx;
for (dd_idx = 0; dd_idx < sh->disks; dd_idx++) {
... |
49d8575ca6135a533218e40ddcb85462fd9ff1d2 | Analyze and fix the following issue in the Linux kernel code: spi: atmel: Drop unused defines | Problem Details:
These defines are leftovers from previous versions of the blamed commit,
they are simply unused so drop them.
Fixes: e0205d6203c2 ("spi: atmel: Prevent false timeouts on long transfers")
Reported-by: Ronald Wahl <ronald.wahl@raritan.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: h... | ```diff
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 2e8860865af9..0197c25f5029 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -233,9 +233,6 @@
*/
#define DMA_MIN_BYTES 16
-#define SPI_DMA_MIN_TIMEOUT (msecs_to_jiffies(1000))
-#define SPI_DMA_TIMEOUT_PER_10K (msecs_to... |
1ca2761a7734928ffe0678f88789266cf3d05362 | Analyze and fix the following issue in the Linux kernel code: spi: atmel: Do not cancel a transfer upon any signal | Problem Details:
The intended move from wait_for_completion_*() to
wait_for_completion_interruptible_*() was to allow (very) long spi memory
transfers to be stopped upon user request instead of freezing the
machine forever as the timeout value could now be significantly bigger.
However, depending on the user logic, ap... | ```diff
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 6aa8adbe4170..2e8860865af9 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1336,8 +1336,8 @@ static int atmel_spi_one_transfer(struct spi_controller *host,
}
dma_timeout = msecs_to_jiffies(spi_controller_xfer_tim... |
8a3750ecf8104de55c569ffbe844a85aa9d5deaa | Analyze and fix the following issue in the Linux kernel code: tracing/uprobe: Replace strlcpy() with strscpy() | Problem Details:
strlcpy() reads the entire source buffer first. This read may exceed
the destination size limit. This is both inefficient and can lead
to linear read overflows if a source string is not NUL-terminated[1].
Additionally, it returns the size of the source string, not the
resulting size of the destination ... | ```diff
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 99c051de412a..a84b85d8aac1 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -151,7 +151,7 @@ fetch_store_string(unsigned long addr, void *dest, void *base)
return -ENOMEM;
if (addr == FETCH_TOKEN_COM... |
b5e3f86a47d34f7b8af899f8cc70520f6daf8b53 | Analyze and fix the following issue in the Linux kernel code: params: Fix multi-line comment style | Problem Details:
The multi-line comment style in the file is rather arbitrary.
Make it follow the standard one.
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231120151... | ```diff
diff --git a/kernel/params.c b/kernel/params.c
index eb55b32399b4..2e447f8ae183 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -1,8 +1,8 @@
// SPDX-License-Identifier: GPL-2.0-or-later
-/* Helpers for initial module or kernel cmdline parsing
- Copyright (C) 2001 Rusty Russell.
-
-*/
+/*
+ * Helpers fo... |
0fc79cbc937f2a754a302a710a94b68c61d0a89a | Analyze and fix the following issue in the Linux kernel code: params: Use size_add() for kmalloc() | Problem Details:
Prevent allocations from integer overflow by using size_add().
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231120151419.1661807-4-andriy.shevchenko@... | ```diff
diff --git a/kernel/params.c b/kernel/params.c
index f8e3c4139854..c3a029fe183d 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -11,6 +11,7 @@
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/err.h>
+#include <linux/overflow.h>
#include <linux/slab.h>
#include <linux/ctype.h>
... |
a6122b0b4211d132934ef99e7b737910e6d54d2f | Analyze and fix the following issue in the Linux kernel code: ASoC: cs35l34: Fix GPIO name and drop legacy include | Problem Details:
This driver includes the legacy GPIO APIs <linux/gpio.h> and
<linux/of_gpio.h> but does not use any symbols from any of
them.
Drop the includes.
Further the driver is requesting "reset-gpios" rather than
just "reset" from the GPIO framework. This is wrong because
the gpiolib core will add "-gpios" be... | ```diff
diff --git a/sound/soc/codecs/cs35l34.c b/sound/soc/codecs/cs35l34.c
index e5871736fa29..cca59de66b73 100644
--- a/sound/soc/codecs/cs35l34.c
+++ b/sound/soc/codecs/cs35l34.c
@@ -20,14 +20,12 @@
#include <linux/regulator/machine.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
-#include <linux/of_gpio.... |
50678d339d670a92658e5538ebee30447c88ccb3 | Analyze and fix the following issue in the Linux kernel code: ASoC: cs35l33: Fix GPIO name and drop legacy include | Problem Details:
This driver includes the legacy GPIO APIs <linux/gpio.h> and
<linux/of_gpio.h> but does not use any symbols from any of
them.
Drop the includes.
Further the driver is requesting "reset-gpios" rather than
just "reset" from the GPIO framework. This is wrong because
the gpiolib core will add "-gpios" be... | ```diff
diff --git a/sound/soc/codecs/cs35l33.c b/sound/soc/codecs/cs35l33.c
index 4010a2d33a33..a19a2bafb37c 100644
--- a/sound/soc/codecs/cs35l33.c
+++ b/sound/soc/codecs/cs35l33.c
@@ -22,13 +22,11 @@
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
-#include <linux/gpio.h>
#include <... |
7b91eb6000104c450ebd7af5771ac305691b6fee | Analyze and fix the following issue in the Linux kernel code: cgroup: Fix documentation for cpu.idle | Problem Details:
Two problems:
- cpu.idle cgroups show up with 0 weight, correct the
documentation to indicate this.
- cpu.idle has no entry describing it.
Signed-off-by: Josh Don <joshdon@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org> | ```diff
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 30f6ff2eba47..09e65312d20c 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1093,7 +1093,11 @@ All time durations are in microseconds.
A read-write single ... |
f813e6d41baf2bbdd1624f9f01ac4f365eb78891 | Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Fix broken assert messages in Hyper-V features test | Problem Details:
Swap the ordering of parameters to guest asserts related to {RD,WR}MSR
success/failure in the Hyper-V features test. As is, the output will
be mangled and broken due to passing an integer as a string and vice
versa.
Opportunistically fix a benign %u vs. %lu issue as well.
Link: https://lore.kernel.o... | ```diff
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
index 4bb63b6ee4a0..29f6bdbce817 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
@@ -55,11 +55,11 @@ static void g... |
4d53dcc5d0bc2c445e29cb14df6d2cf93091731f | Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Fix benign %llx vs. %lx issues in guest asserts | Problem Details:
Convert %llx to %lx as appropriate in guest asserts. The guest printf
implementation treats them the same as KVM selftests are 64-bit only, but
strictly adhering to the correct format will allow annotating the
underlying helpers with __printf() without introducing new warnings in the
build.
Link: htt... | ```diff
diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c
index 6637a0845acf..03ec7efd19aa 100644
--- a/tools/testing/selftests/kvm/set_memory_region_test.c
+++ b/tools/testing/selftests/kvm/set_memory_region_test.c
@@ -157,17 +157,17 @@ static void... |
1af3bf2befc07c7198100949dd1bece02a7dbded | Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Fix MWAIT error message when guest assertion fails | Problem Details:
Print out the test and vector as intended when a guest assert fails an
assertion regarding MONITOR/MWAIT faulting. Unfortunately, the guest
printf support doesn't detect such issues at compile-time, so the bug
manifests as a confusing error message, e.g. in the most confusing case,
the test complains ... | ```diff
diff --git a/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c b/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c
index 80aa3d8b18f8..853802641e1e 100644
--- a/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c
+++ b/tools/testing/selftests/kvm/x86_64/monitor_mwait_test.c
@@ -27,10 +27,12 @@ d... |
ef8d89033c3f1f6a64757f066b2c17e76d1189f8 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Remove 'return void' expression for 'void function' | Problem Details:
The requested info will be stored in 'guest_xsave->region' referenced by
the incoming pointer "struct kvm_xsave *guest_xsave", thus there is no need
to explicitly use return void expression for a void function "static void
kvm_vcpu_ioctl_x86_get_xsave(...)". The issue is caught with [-Wpedantic].
Fixe... | ```diff
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3b6a0109191b..a8bebf5c0a05 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5411,8 +5411,8 @@ static void kvm_vcpu_ioctl_x86_get_xsave2(struct kvm_vcpu *vcpu,
static void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
struct kvm... |
ea61294befd361ab8260c65d53987b400e5599a7 | Analyze and fix the following issue in the Linux kernel code: Revert "KVM: Prevent module exit until all VMs are freed" | Problem Details:
Revert KVM's misguided attempt to "fix" a use-after-module-unload bug that
was actually due to failure to flush a workqueue, not a lack of module
refcounting. Pinning the KVM module until kvm_vm_destroy() doesn't
prevent use-after-free due to the module being unloaded, as userspace can
invoke delete_m... | ```diff
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1e65a506985f..3b1b9e8dd70c 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -115,8 +115,6 @@ EXPORT_SYMBOL_GPL(kvm_debugfs_dir);
static const struct file_operations stat_fops_per_vm;
-static struct file_operations kvm_chardev_ops;
-
... |
087e15206d6ac0d46734e2b0ab34370c0fdca481 | Analyze and fix the following issue in the Linux kernel code: KVM: Set file_operations.owner appropriately for all such structures | Problem Details:
Set .owner for all KVM-owned filed types so that the KVM module is pinned
until any files with callbacks back into KVM are completely freed. Using
"struct kvm" as a proxy for the module, i.e. keeping KVM-the-module alive
while there are active VMs, doesn't provide full protection.
Userspace can invok... | ```diff
diff --git a/arch/x86/kvm/debugfs.c b/arch/x86/kvm/debugfs.c
index ee8c4c3496ed..eea6ea7f14af 100644
--- a/arch/x86/kvm/debugfs.c
+++ b/arch/x86/kvm/debugfs.c
@@ -182,6 +182,7 @@ static int kvm_mmu_rmaps_stat_release(struct inode *inode, struct file *file)
}
static const struct file_operations mmu_rmaps_sta... |
1f829359c8c37f77a340575957686ca8c4bca317 | Analyze and fix the following issue in the Linux kernel code: KVM: Harden copying of userspace-array against overflow | Problem Details:
kvm_main.c utilizes vmemdup_user() and array_size() to copy a userspace
array. Currently, this does not check for an overflow.
Use the new wrapper vmemdup_array_user() to copy the array more safely.
Note, KVM explicitly checks the number of entries before duplicating the
array, i.e. adding the overfl... | ```diff
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b744eddecbc0..e76d49daa470 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -5262,9 +5262,8 @@ static long kvm_vm_ioctl(struct file *filp,
goto out;
if (routing.nr) {
urouting = argp;
- entries = vmemdup_user(urouting->entrie... |
8c4976772d9b5858b8b456e84783e089c6cfa66e | Analyze and fix the following issue in the Linux kernel code: KVM: s390: Harden copying of userspace-array against overflow | Problem Details:
guestdbg.c utilizes memdup_user() to copy a userspace array. This,
currently, does not check for an overflow.
Use the new wrapper memdup_array_user() to copy the array more safely.
Note, KVM explicitly checks the number of entries before duplicating the
array, i.e. adding the overflow check should be... | ```diff
diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 3765c4223bf9..80879fc73c90 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -213,8 +213,8 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
else if (dbg->arch.nr_hw_bp > MAX_BP_COUNT)
return -EINVAL;
- bp_da... |
e59f75de4e501e87de7743fec29dd247a6ae6cd3 | Analyze and fix the following issue in the Linux kernel code: KVM: x86/mmu: fix comment about mmu_unsync_pages_lock | Problem Details:
Fix the comment about what can and cannot happen when mmu_unsync_pages_lock
is not help. The comment correctly mentions "clearing sp->unsync", but then
it talks about unsync going from 0 to 1.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20231125083400.1399197-5-... | ```diff
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index ace9f7c13132..3fec3f6cdd53 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -2850,9 +2850,9 @@ int mmu_try_to_unsync_pages(struct kvm *kvm, const struct kvm_memory_slot *slot,
/*
* Recheck after taking the spinlock, a... |
45a61ebb221117748d3567a86908618f431ac824 | Analyze and fix the following issue in the Linux kernel code: KVM: x86/mmu: Check for leaf SPTE when clearing dirty bit in the TDP MMU | Problem Details:
Re-check that the given SPTE is still a leaf and present SPTE after a
failed cmpxchg in clear_dirty_gfn_range(). clear_dirty_gfn_range()
intends to only operate on present leaf SPTEs, but that could change
after a failed cmpxchg.
A check for present was added in commit 3354ef5a592d ("KVM: x86/mmu:
Che... | ```diff
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 6cd4dd631a2f..038983b13574 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -1522,12 +1522,13 @@ static bool clear_dirty_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root,
rcu_read_lock();
- tdp_root_f... |
1aa4bb916808503bf6fedd00f50f2077f91cebaa | Analyze and fix the following issue in the Linux kernel code: KVM: x86/mmu: Fix off-by-1 when splitting huge pages during CLEAR | Problem Details:
Fix an off-by-1 error when passing in the range of pages to
kvm_mmu_try_split_huge_pages() during CLEAR_DIRTY_LOG. Specifically, end
is the last page that needs to be split (inclusive) so pass in `end + 1`
since kvm_mmu_try_split_huge_pages() expects the `end` to be
non-inclusive.
At worst this will c... | ```diff
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 59b026b6ad2a..29ac130fcb84 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -1392,7 +1392,7 @@ void kvm_arch_mmu_enable_log_dirty_pt_masked(struct kvm *kvm,
gfn_t end = slot->base_gfn + gfn_offset + __fls(mask);
if (RE... |
74fbc88e161424b3b96a22b23a8e3e1edab9d05c | Analyze and fix the following issue in the Linux kernel code: nvme-core: check for too small lba shift | Problem Details:
The block layer doesn't support logical block sizes smaller than 512
bytes. The nvme spec doesn't support that small either, but the driver
isn't checking to make sure the device responded with usable data.
Failing to catch this will result in a kernel bug, either from a
division by zero when stacking,... | ```diff
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index a55c2a774b9c..1be1ce522896 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1901,9 +1901,10 @@ static void nvme_update_disk_info(struct gendisk *disk,
/*
* The block layer can't support LBA sizes larger than th... |
b6a3451e0847d5d70fb5fa2b2a80ab9f80bf2c7b | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Fix erroneous bitmask operation | Problem Details:
xdp_synproxy_kern.c is a BPF program that generates SYN cookies on
allowed TCP ports and sends SYNACKs to clients, accelerating synproxy
iptables module.
Fix the bitmask operation when checking the status of an existing
conntrack entry within tcp_lookup() function. Do not AND with the bit
position num... | ```diff
diff --git a/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c b/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
index 80f620602d50..518329c666e9 100644
--- a/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
+++ b/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
@@ -467,13 +467,13 @@ static ... |
ff3670877e7c73d06c2a835d9abb62efcae0145c | Analyze and fix the following issue in the Linux kernel code: drm/imx/lcdc: Fix double-free of driver data | Problem Details:
The struct imx_lcdc driver data is allocated using devm_drm_dev_alloc()
so it must not be explicitly kfree()d.
Also drm_kms_helper_poll_fini() should not be called as there is no
matching drm_kms_helper_poll_init(). So drop the release function
completely.
Fixes: c87e859cdeb5 ("drm/imx/lcdc: Implemen... | ```diff
diff --git a/drivers/gpu/drm/imx/lcdc/imx-lcdc.c b/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
index 0902983374d0..43ddf3a9810b 100644
--- a/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
+++ b/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
@@ -342,21 +342,12 @@ static const struct drm_mode_config_helper_funcs imx_lcdc_mode_config_helpers =... |
cefc9ba6aed48a3aa085888e3262ac2aa975714b | Analyze and fix the following issue in the Linux kernel code: pds_vdpa: set features order | Problem Details:
Fix up the order that the device and negotiated features
are checked to get a more reliable difference when things
get changed.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Message-Id: <20231110221802.46841-4-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by... | ```diff
diff --git a/drivers/vdpa/pds/vdpa_dev.c b/drivers/vdpa/pds/vdpa_dev.c
index 9fc89c82d1f0..25c0fe5ec3d5 100644
--- a/drivers/vdpa/pds/vdpa_dev.c
+++ b/drivers/vdpa/pds/vdpa_dev.c
@@ -318,9 +318,8 @@ static int pds_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 featur
return -EOPNOTSUPP;
}
- p... |
4f317d6529d7fc3ab7769ef89645d43fc7eec61b | Analyze and fix the following issue in the Linux kernel code: pds_vdpa: fix up format-truncation complaint | Problem Details:
Our friendly kernel test robot has recently been pointing out
some format-truncation issues. Here's a fix for one of them.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311040109.RfgJoE7L-lkp@intel.com/
Signed-off-by: Shannon Nelson <shannon.nelson@am... | ```diff
diff --git a/drivers/vdpa/pds/debugfs.c b/drivers/vdpa/pds/debugfs.c
index 9b04aad6ec35..c328e694f6e7 100644
--- a/drivers/vdpa/pds/debugfs.c
+++ b/drivers/vdpa/pds/debugfs.c
@@ -261,7 +261,7 @@ void pds_vdpa_debugfs_add_vdpadev(struct pds_vdpa_aux *vdpa_aux)
debugfs_create_file("config", 0400, vdpa_aux->dent... |
480b3e73720f6b5d76bef2387b1f9d19ed67573b | Analyze and fix the following issue in the Linux kernel code: vdpa/mlx5: preserve CVQ vringh index | Problem Details:
mlx5_vdpa does not preserve userland's view of vring base for the control
queue in the following sequence:
ioctl VHOST_SET_VRING_BASE
ioctl VHOST_VDPA_SET_STATUS VIRTIO_CONFIG_S_DRIVER_OK
mlx5_vdpa_set_status()
setup_cvq_vring()
vringh_init_iotlb()
vringh_init_kern()
vrh-... | ```diff
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 12ac3397f39b..26ba7da6b410 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -2815,13 +2815,18 @@ static int setup_cvq_vring(struct mlx5_vdpa_dev *mvdev)
struct mlx5_control_vq *cvq... |
0e4237ae8d159e3d28f3cd83146a46f576ffb586 | Analyze and fix the following issue in the Linux kernel code: blk-mq: don't count completed flush data request as inflight in case of quiesce | Problem Details:
Request queue quiesce may interrupt flush sequence, and the original request
may have been marked as COMPLETE, but can't get finished because of
queue quiesce.
This way is fine from driver viewpoint, because flush sequence is block
layer concept, and it isn't related with driver.
However, driver(such... | ```diff
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 900c1be1fee1..ac18f802c027 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1512,14 +1512,26 @@ void blk_mq_delay_kick_requeue_list(struct request_queue *q,
}
EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);
+static bool blk_is_flush_data_rq(struct reques... |
a2f35ed1d237c459100adb0c39bb811d7f170977 | Analyze and fix the following issue in the Linux kernel code: ASoC: codecs: lpass-tx-macro: set active_decimator correct default value | Problem Details:
The -1 value for active_decimator[dai_id] is considered as "not set",
but at probe the table is initialized a 0, this prevents enabling the
DEC0 Mixer since it will be considered as already set.
Initialize the table entries as -1 to fix tx_macro_tx_mixer_put().
Fixes: 1c6a7f5250ce ("ASoC: codecs: tx-... | ```diff
diff --git a/sound/soc/codecs/lpass-tx-macro.c b/sound/soc/codecs/lpass-tx-macro.c
index 82f9873ffada..124c2e144f33 100644
--- a/sound/soc/codecs/lpass-tx-macro.c
+++ b/sound/soc/codecs/lpass-tx-macro.c
@@ -2021,6 +2021,11 @@ static int tx_macro_probe(struct platform_device *pdev)
tx->dev = dev;
+ /* Set ... |
b24e3590c94ab0aba6e455996b502a83baa5c31c | Analyze and fix the following issue in the Linux kernel code: ASoC: amd: yc: Fix non-functional mic on ASUS E1504FA | Problem Details:
This patch adds ASUSTeK COMPUTER INC "E1504FA" to the quirks file acp6x-mach.c
to enable microphone array on ASUS Vivobook GO 15.
I have this laptop and can confirm that the patch succeeds in enabling the
microphone array.
Signed-off-by: Malcolm Hart <malcolm@5harts.com>
Cc: stable@vger.kernel.org
Ru... | ```diff
diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index c425652b0fad..d83cb6e4c62a 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -283,6 +283,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "M6500RC"),
... |
756b31203d482d2dd1aa6c208978b0410dc7530f | Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: fix misbehavior of TX beacon in concurrent mode | Problem Details:
In concurrent mode, when STA interface is scanning, it causes
AP interface TX beacon on wrong channel. We modified it to scan
with the operating channel when one of the interfaces is already
connected. Additionally, STA interface need to stop scan when AP
interface is starting to avoid TX beacon on wro... | ```diff
diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c
index 898b3f432d1c..b11ed35e265d 100644
--- a/drivers/net/wireless/realtek/rtw89/fw.c
+++ b/drivers/net/wireless/realtek/rtw89/fw.c
@@ -4045,6 +4045,7 @@ void rtw89_hw_scan_complete(struct rtw89_dev *rtwdev, struct ie... |
0052b3c401cdf39d3c3d12a0c3852175bc9a39c7 | Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: fix not entering PS mode after AP stops | Problem Details:
The attempt to enter power save mode might fail if there are still
beacons pending in the queue. This sometimes happens after stopping
P2P GO or AP mode. Extend stop AP function and flush all beacons to
resolve this.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih... | ```diff
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index c3dac7a6c377..587113f6fc94 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -3869,6 +3869,50 @@ static const struct rtw89_port_reg rtw89_port_base_ax = {
... |
05b311a3f9153226b5603e33831aec34fd38e228 | Analyze and fix the following issue in the Linux kernel code: wifi: rtlwifi: rtl8821ae: Access full PMCS reg and use pci_regs.h | Problem Details:
_rtl8821ae_clear_pci_pme_status() accesses the upper byte of the Power
Management Control/Status register (PMCS) with literal 5 offset.
Access the entire PMCS register using defines from pci_regs.h to
improve code readability.
While at it, remove the obvious comment and tweak debug prints
slightly to... | ```diff
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
index 7cc648d49f2d..f4b232f038a9 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
@@ -2271,7 +2271,7 @@ static void _rt... |
5894d0089cbc146063dcc0239a78ede0a8142efb | Analyze and fix the following issue in the Linux kernel code: wifi: rtlwifi: Convert LNKCTL change to PCIe cap RMW accessors | Problem Details:
The rtlwifi driver comes with custom code to write into PCIe Link
Control register. RMW access for the Link Control register requires
locking that is already provided by the standard PCIe capability
accessors.
Convert the custom RMW code writing into LNKCTL register to standard
RMW capability accessor... | ```diff
diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index cb8f1470cf59..3a7eed1d4c5e 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -163,21 +163,29 @@ static bool _rtl_pci_platform_switch_device_pci_asp... |
b3943b3c2971444364e03224cfc828c5789deada | Analyze and fix the following issue in the Linux kernel code: wifi: rtlwifi: Remove bogus and dangerous ASPM disable/enable code | Problem Details:
Ever since introduction in the commit 0c8173385e54 ("rtl8192ce: Add new
driver") the rtlwifi code has, according to comments, attempted to
disable/enable ASPM of the upstream bridge by writing into its LNKCTL
register. However, the code has never been correct because it performs
the writes to the devic... | ```diff
diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index b163a069660b..cb8f1470cf59 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -191,11 +191,8 @@ static void rtl_pci_disable_aspm(struct ieee80211_hw... |
00384f565a91c08c4bedae167f749b093d10e3fe | Analyze and fix the following issue in the Linux kernel code: wifi: rtw88: sdio: Honor the host max_req_size in the RX path | Problem Details:
Lukas reports skb_over_panic errors on his Banana Pi BPI-CM4 which comes
with an Amlogic A311D (G12B) SoC and a RTL8822CS SDIO wifi/Bluetooth
combo card. The error he observed is identical to what has been fixed
in commit e967229ead0e ("wifi: rtw88: sdio: Check the HISR RX_REQUEST
bit in rtw_sdio_rx_is... | ```diff
diff --git a/drivers/net/wireless/realtek/rtw88/sdio.c b/drivers/net/wireless/realtek/rtw88/sdio.c
index 2c1fb2dabd40..0cae5746f540 100644
--- a/drivers/net/wireless/realtek/rtw88/sdio.c
+++ b/drivers/net/wireless/realtek/rtw88/sdio.c
@@ -500,19 +500,40 @@ static u32 rtw_sdio_get_tx_addr(struct rtw_dev *rtwdev,... |
830139e7b6911266a84a77e1f18abf758995cc89 | Analyze and fix the following issue in the Linux kernel code: octeontx2-af: Check return value of nix_get_nixlf before using nixlf | Problem Details:
If a NIXLF is not attached to a PF/VF device then
nix_get_nixlf function fails and returns proper error
code. But npc_get_default_entry_action does not check it
and uses garbage value in subsequent calls. Fix this
by cheking the return value of nix_get_nixlf.
Fixes: 967db3529eca ("octeontx2-af: add su... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index 16cfc802e348..f65805860c8d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -389,7 +389,13 @@ static u64 npc_g... |
ab47505ce45b869ab649024dc932e981fcdd6e5f | Analyze and fix the following issue in the Linux kernel code: backlight: mp3309c: Fix uninitialized local variable | Problem Details:
In the function "pm3309c_parse_dt_node", when the dimming analog control
mode (by I2C messages) is enabled, the local variable "prop_levels" is
tested without any initialization, as indicated by the following smatch
warning:
drivers/video/backlight/mp3309c.c:279 pm3309c_parse_dt_node() error: uninitia... | ```diff
diff --git a/drivers/video/backlight/mp3309c.c b/drivers/video/backlight/mp3309c.c
index 3fe4469ef43f..34d71259fac1 100644
--- a/drivers/video/backlight/mp3309c.c
+++ b/drivers/video/backlight/mp3309c.c
@@ -203,7 +203,8 @@ static int pm3309c_parse_dt_node(struct mp3309c_chip *chip,
struct mp3309c_platform... |
9572c949385aa2ef10368287c439bcb7935137c8 | Analyze and fix the following issue in the Linux kernel code: octeontx2-pf: Add missing mutex lock in otx2_get_pauseparam | Problem Details:
All the mailbox messages sent to AF needs to be guarded
by mutex lock. Add the missing lock in otx2_get_pauseparam
function.
Fixes: 75f36270990c ("octeontx2-pf: Support to enable/disable pause frames via ethtool")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Reviewed-by: Simon Horman <horms@... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
index 9efcec549834..53f6258a973c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
@@ -334,9 +33... |
0cd523ee864243c9bdb9d52776613e62b992f6bf | Analyze and fix the following issue in the Linux kernel code: octeon_ep: Fix error code in probe() | Problem Details:
Set the error code if octep_ctrl_net_get_mtu() fails. Currently the code
returns success.
Fixes: 0a5f8534e398 ("octeon_ep: get max rx packet length from firmware")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Dan Carpenter <dan.ca... | ```diff
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index 1a24b3d3cce6..f22fd309a78f 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -1387,6 +1387,7 @@ static int octe... |
da40448ce4eb4de18eb7b0db61dddece32677939 | Analyze and fix the following issue in the Linux kernel code: fs: move file_start_write() into direct_splice_actor() | Problem Details:
The callers of do_splice_direct() hold file_start_write() on the output
file.
This may cause file permission hooks to be called indirectly on an
overlayfs lower layer, which is on the same filesystem of the output
file and could lead to deadlock with fanotify permission events.
To fix this potential ... | ```diff
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 106f8643af3b..2f587ee0b334 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -333,11 +333,9 @@ static int ovl_copy_up_file(struct ovl_fs *ofs, struct dentry *dentry,
if (error)
break;
- ovl_start_write(dentry);
byt... |
488e8f685207e0758398963d6834f81e5e61c162 | Analyze and fix the following issue in the Linux kernel code: fs: fork splice_file_range() from do_splice_direct() | Problem Details:
In preparation of calling do_splice_direct() without file_start_write()
held, create a new helper splice_file_range(), to be called from context
of ->copy_file_range() methods instead of do_splice_direct().
Currently, the only difference is that splice_file_range() does not take
flags argument and tha... | ```diff
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 3b5aae29e944..f11de6e1f1c1 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -12,6 +12,7 @@
#include <linux/falloc.h>
#include <linux/iversion.h>
#include <linux/ktime.h>
+#include <linux/splice.h>
#include "super.h"
#include "mds_client.h"
@@ -3010,8 ... |
561322c3bc14bb59f26120a9135eabc140284f86 | Analyze and fix the following issue in the Linux kernel code: drm/i915/display: Skip state verification with TBT-ALT mode | Problem Details:
With TBT-ALT mode we are not programming C20 chip PLL's and
hence we don't need to check state verification. We don't
need to program DP link signal levels i.e.pre-emphasis and
voltage swing either.
This patch fixes dmesg errors like this one
"[drm] ERROR PHY F Write 0c06 failed after 3 retries."
Si... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index a8fa76580802..5fbec5784b83 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -415,9 +415,15 @@ void intel_cx0_phy_set_signal_levels(struct ... |
27951e1d8274e9f9a2925b069e4492939a3f2099 | Analyze and fix the following issue in the Linux kernel code: powerpc/pseries/memhp: Log more error conditions in add path | Problem Details:
When an add operation for multiple LMBs fails, there is currently
little indication from the kernel of what went wrong. Be a little more
verbose about error conditions in the add paths.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https... | ```diff
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 6f2eebae7bee..3fe3ddb30c04 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -208,8 +208,10 @@ static int dlpar_change_lmb_stat... |
bd68ffce69f6cf8ddd3a3c32549d1d2275e49fc5 | Analyze and fix the following issue in the Linux kernel code: powerpc/pseries/memhp: Fix access beyond end of drmem array | Problem Details:
dlpar_memory_remove_by_index() may access beyond the bounds of the
drmem lmb array when the LMB lookup fails to match an entry with the
given DRC index. When the search fails, the cursor is left pointing to
&drmem_info->lmbs[drmem_info->n_lmbs], which is one element past the
last valid entry in the arr... | ```diff
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index a43bfb01720a..6f2eebae7bee 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -436,14 +436,15 @@ static int dlpar_memory_remove_... |
4a74197b65e69c46fe6e53f7df2f4d6ce9ffe012 | Analyze and fix the following issue in the Linux kernel code: powerpc/44x: select I2C for CURRITUCK | Problem Details:
Fix build errors when CURRITUCK=y and I2C is not builtin (=m or is
not set). Fixes these build errors:
powerpc-linux-ld: arch/powerpc/platforms/44x/ppc476.o: in function `avr_halt_system':
ppc476.c:(.text+0x58): undefined reference to `i2c_smbus_write_byte_data'
powerpc-linux-ld: arch/powerpc/platform... | ```diff
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 1624ebf95497..35a1f4b9f827 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -173,6 +173,7 @@ config ISS4xx
config CURRITUCK
bool "IBM Currituck (476fpe) Support"
depends on ... |
a9e1e4d6e8c77c732e8084b03bae0c78cafdceb0 | Analyze and fix the following issue in the Linux kernel code: powerpc/85xx: Fix typo in code comment | Problem Details:
s/singals/signals/
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231124100241.660374-1-dario.binacchi@amarulasolutions.com | ```diff
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index ec9f60fbebc7..e0cec670d8db 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -76,7 +76,7 @@ static void __init mpc85xx_rdb_setup_arch(void)
/* P102... |
f8d3555355653848082c351fa90775214fb8a4fa | Analyze and fix the following issue in the Linux kernel code: powerpc: Fix build error due to is_valid_bugaddr() | Problem Details:
With CONFIG_GENERIC_BUG=n the build fails with:
arch/powerpc/kernel/traps.c:1442:5: error: no previous prototype for ‘is_valid_bugaddr’ [-Werror=missing-prototypes]
1442 | int is_valid_bugaddr(unsigned long addr)
| ^~~~~~~~~~~~~~~~
The prototype is only defined, and the function is onl... | ```diff
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 5ea2014aff90..11e062b47d3f 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1439,10 +1439,12 @@ static int emulate_instruction(struct pt_regs *regs)
return -EINVAL;
}
+#ifdef CONFIG_GENERIC_BUG
int i... |
d8c3f243d4db24675b653f0568bb65dae34e6455 | Analyze and fix the following issue in the Linux kernel code: powerpc/mm: Fix build failures due to arch_reserved_kernel_pages() | Problem Details:
With NUMA=n and FA_DUMP=y or PRESERVE_FA_DUMP=y the build fails with:
arch/powerpc/kernel/fadump.c:1739:22: error: no previous prototype for ‘arch_reserved_kernel_pages’ [-Werror=missing-prototypes]
1739 | unsigned long __init arch_reserved_kernel_pages(void)
| ^~~~~~~~... | ```diff
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 52cc25864a1b..d8b7e246a32f 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -412,5 +412,9 @@ extern void *abatron_pteptrs[2];
#include <asm/nohash/mmu.h>
#endif
+#if defined(CONFIG_FA_DUMP) ... |
95d4b471953411854f9c80b568da7fcf753f3801 | Analyze and fix the following issue in the Linux kernel code: drm/tidss: Fix atomic_flush check | Problem Details:
tidss_crtc_atomic_flush() checks if the crtc is enabled, and if not,
returns immediately as there's no reason to do any register changes.
However, the code checks for 'crtc->state->enable', which does not
reflect the actual HW state. We should instead look at the
'crtc->state->active' flag.
This caus... | ```diff
diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
index 5e5e466f35d1..7c78c074e3a2 100644
--- a/drivers/gpu/drm/tidss/tidss_crtc.c
+++ b/drivers/gpu/drm/tidss/tidss_crtc.c
@@ -169,13 +169,13 @@ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
struct tidss_device *t... |
bc288a927815efcf9d7f4a54d4d89c5df478c635 | Analyze and fix the following issue in the Linux kernel code: drm/tidss: Fix dss reset | Problem Details:
The probe function calls dispc_softreset() before runtime PM is enabled
and without enabling any of the DSS clocks. This happens to work by
luck, and we need to make sure the DSS HW is active and the fclk is
enabled.
To fix the above, add a new function, dispc_init_hw(), which does:
- pm_runtime_set_... | ```diff
diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c b/drivers/gpu/drm/tidss/tidss_dispc.c
index c3741feaafff..1ad711f8d2a8 100644
--- a/drivers/gpu/drm/tidss/tidss_dispc.c
+++ b/drivers/gpu/drm/tidss/tidss_dispc.c
@@ -2797,6 +2797,49 @@ static int dispc_softreset(struct dispc_device *dispc)
return 0;
}
+stati... |
a0a9e7b4690b1d78f146fbc8c78a630856ed3015 | Analyze and fix the following issue in the Linux kernel code: drm/tidss: Use pm_runtime_resume_and_get() | Problem Details:
Use pm_runtime_resume_and_get() instead of pm_runtime_get_sync(), which
will handle error situations better. Also fix the return, as there
should be no reason for the current complex return.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Aradhya Bhatia <a-bhatia1@ti.com... | ```diff
diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
index edf69d020544..bb1297820856 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -32,9 +32,9 @@ int tidss_runtime_get(struct tidss_device *tidss)
dev_dbg(tidss->dev, "%s\n", __func__)... |
ce852f1308ac738e61c5b2502517deea593a1554 | Analyze and fix the following issue in the Linux kernel code: crypto: sa2ul - Return crypto_aead_setkey to transfer the error | Problem Details:
Return crypto_aead_setkey() in order to transfer the error if
it fails.
Fixes: d2c8ac187fc9 ("crypto: sa2ul - Add AEAD algorithm support")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> | ```diff
diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index 6846a8429574..78a4930c6480 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -1869,9 +1869,8 @@ static int sa_aead_setkey(struct crypto_aead *authenc,
crypto_aead_set_flags(ctx->fallback.aead,
crypto_aead_get_flags(... |
aaa03fdb56c781db4a4831dd5d6ec8817918c726 | Analyze and fix the following issue in the Linux kernel code: crypto: p10-aes-gcm - Avoid -Wstringop-overflow warnings | Problem Details:
The compiler doesn't know that `32` is an offset into the Hash table:
56 struct Hash_ctx {
57 u8 H[16]; /* subkey */
58 u8 Htable[256]; /* Xi, Hash table(offset 32) */
59 };
So, it legitimately complains about a potential out-of-bounds issue
if `256 bytes` are accessed in `h... | ```diff
diff --git a/arch/powerpc/crypto/aes-gcm-p10-glue.c b/arch/powerpc/crypto/aes-gcm-p10-glue.c
index 4b6e899895e7..f62ee54076c0 100644
--- a/arch/powerpc/crypto/aes-gcm-p10-glue.c
+++ b/arch/powerpc/crypto/aes-gcm-p10-glue.c
@@ -37,7 +37,7 @@ asmlinkage void aes_p10_gcm_encrypt(u8 *in, u8 *out, size_t len,
... |
d71fdd0f3c278c7f132c3a522645ebf9157edd6d | Analyze and fix the following issue in the Linux kernel code: crypto: qat - add sysfs_added flag for rate limiting | Problem Details:
The qat_rl sysfs attribute group is registered within the adf_dev_start()
function, alongside other driver components.
If any of the functions preceding the group registration fails,
the adf_dev_start() function returns, and the caller, to undo the
operation, invokes adf_dev_stop() followed by adf_dev_... | ```diff
diff --git a/drivers/crypto/intel/qat/qat_common/adf_rl.h b/drivers/crypto/intel/qat/qat_common/adf_rl.h
index eb5a330f8543..269c6656fb90 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_rl.h
+++ b/drivers/crypto/intel/qat/qat_common/adf_rl.h
@@ -79,6 +79,7 @@ struct adf_rl_interface_data {
struct adf_rl_... |
65089000ba8c2ae713ccac6603319143f3e1c08b | Analyze and fix the following issue in the Linux kernel code: crypto: qat - add sysfs_added flag for ras | Problem Details:
The qat_ras sysfs attribute group is registered within the
adf_dev_start() function, alongside other driver components.
If any of the functions preceding the group registration fails,
the adf_dev_start() function returns, and the caller, to undo the
operation, invokes adf_dev_stop() followed by adf_dev... | ```diff
diff --git a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h
index 4ff5729a3496..9d5fdd529a2e 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h
+++ b/drivers/crypto/intel/qat/qat_common/adf_accel_devices.h
@@ -92,6 +92,7 @@ enu... |
2d37b3649c412b3bcecfea932cb677f7a5775b15 | Analyze and fix the following issue in the Linux kernel code: hwrng: starfive - Fix dev_err_probe return error | Problem Details:
Current dev_err_probe will return 0 instead of proper error code if
driver failed to get irq number. Fix the return err code.
Signed-off-by: Jia Jie Ho <jiajie.ho@starfivetech.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel... | ```diff
diff --git a/drivers/char/hw_random/jh7110-trng.c b/drivers/char/hw_random/jh7110-trng.c
index 38474d48a25e..b1f94e3c0c6a 100644
--- a/drivers/char/hw_random/jh7110-trng.c
+++ b/drivers/char/hw_random/jh7110-trng.c
@@ -300,7 +300,7 @@ static int starfive_trng_probe(struct platform_device *pdev)
ret = devm_req... |
fed93fb62e05c38152b0fc1dc9609639e63eed76 | Analyze and fix the following issue in the Linux kernel code: crypto: virtio - Handle dataq logic with tasklet | Problem Details:
Doing ipsec produces a spinlock recursion warning.
This is due to crypto_finalize_request() being called in the upper half.
Move virtual data queue processing of virtio-crypto driver to tasklet.
Fixes: dbaf0624ffa57 ("crypto: add virtio-crypto driver")
Reported-by: Halil Pasic <pasic@linux.ibm.com>
Si... | ```diff
diff --git a/drivers/crypto/virtio/virtio_crypto_common.h b/drivers/crypto/virtio/virtio_crypto_common.h
index 154590e1f764..7059bbe5a2eb 100644
--- a/drivers/crypto/virtio/virtio_crypto_common.h
+++ b/drivers/crypto/virtio/virtio_crypto_common.h
@@ -10,6 +10,7 @@
#include <linux/virtio.h>
#include <linux/cry... |
95dd1e34ff5bbee93a28ff3947eceaf6de811b1a | Analyze and fix the following issue in the Linux kernel code: gpiolib: sysfs: Fix error handling on failed export | Problem Details:
If gpio_set_transitory() fails, we should free the GPIO again. Most
notably, the flag FLAG_REQUESTED has previously been set in
gpiod_request_commit(), and should be reset on failure.
To my knowledge, this does not affect any current users, since the
gpio_set_transitory() mainly returns 0 and -ENOTSUP... | ```diff
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 6f309a3b2d9a..12d853845bb8 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -474,14 +474,17 @@ static ssize_t export_store(const struct class *class,
goto done;
status = gpiod_set_transitory(desc... |
c2183b3dcc9dd41b768569ea88bededa58cceebb | Analyze and fix the following issue in the Linux kernel code: iommu: Fix printk arg in of_iommu_get_resv_regions() | Problem Details:
The variable phys is defined as (struct resource *) which aligns with
the printk format specifier %pr. Taking the address of it results in a
value of type (struct resource **) which is incompatible with the format
specifier %pr. Therefore, remove the address of operator (&).
Fixes: a5bf3cfce8cb ("iomm... | ```diff
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index c25b4ae6aeee..35ba090f3b5e 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -197,7 +197,7 @@ iommu_resv_region_get_type(struct device *dev,
if (start == phys->start && end == phys->end)
return IOMMU_RESV_DIRECT;
... |
6c183a881100144e990f23fbd0f3262e93e8191d | Analyze and fix the following issue in the Linux kernel code: arm64: dts: ti: iot2050: Refactor the m.2 and minipcie power pin | Problem Details:
Make the m.2 power control pin also available on miniPCIE variants.
This can fix some miniPCIE card hang issue, by forcing a power on reset
during boot.
Signed-off-by: Baocheng Su <baocheng.su@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/r/8b2f8c169842... | ```diff
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
index e9419c4fe605..e9b57b87e42e 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
@@ -20,7 +20,9 @@
&mai... |
e6a53facc8ade138089a64adb4980a1622e7f75f | Analyze and fix the following issue in the Linux kernel code: arm64: dts: ti: iot2050: Definitions for runtime pinmuxing | Problem Details:
Add multiple device tree nodes in order to support
runtime pinmuxing via debugfs.
All nodes are added to the pinctrl device node,
since they are now belonging to multiple interfaces now.
Note: Pinconf is also handled by debugfs-pinmux. This is possible since
pinconf and pinmux accessing the same 32-B... | ```diff
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index fc39ae0f9587..41c980d2a242 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -114,6 +114,425 @@
};
&wkup_pmx0 {... |
ad8edf4ff37ab157f6547da173aedc9f4e5c4015 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: ti: iot2050: Re-add aliases | Problem Details:
Lost while dropping them from the common dtsi.
Fixes: ffc449e016e2 ("arm64: dts: ti: k3-am65: Drop aliases")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/r/1edbc1b56ed4ff2256d7afb7db3cab4b3a423692.1699087938.git.jan.kiszka@siemens.com
Signed-off-by: Nishanth Menon <... | ```diff
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index ba1c14a54acf..b849648d51f9 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -14,6 +14,16 @@
/ {
aliases {
+ ... |
2897596e3793ce4d58654c56dcc531e853c3ca5a | Analyze and fix the following issue in the Linux kernel code: arm64: dts: ti: k3-am64-main: Fix typo in epwm_tbclk node name | Problem Details:
The node name has @4140 but the reg is at 4130, fix this here.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20231117162059.88633-1-afd@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com> | ```diff
diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 0be642bc1b86..745143410146 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -63,7 +63,7 @@
#phy-cells = <1>;
};
- epwm_tbclk: clock-controller@4... |
b57160859263c083c49482b0d083a586b1517f78 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: ti: k3-am65-main: Fix DSS irq trigger type | Problem Details:
DSS irq trigger type is set to IRQ_TYPE_EDGE_RISING in the DT file, but
the TRM says it is level triggered.
For some reason triggering on rising edge results in double the amount
of expected interrupts, e.g. for normal page flipping test the number of
interrupts per second is 2 * fps. It is as if the ... | ```diff
diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 5ebb87f467de..29048d6577cf 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -1034,7 +1034,7 @@
assigned-clocks = <&k3_clks 67 2>;
assigned-clock-par... |
7dc4af358cc382c5d20bd5b726e53ef0f526eb6d | Analyze and fix the following issue in the Linux kernel code: arm64: dts: ti: k3-am62a-main: Fix GPIO pin count in DT nodes | Problem Details:
Fix number of gpio pins in main_gpio0 & main_gpio1 DT nodes according
to AM62A7 datasheet[0].
[0] https://www.ti.com/lit/gpn/am62a3 Section: 6.3.10 GPIO (Page No. 52-55)
Fixes: 5fc6b1b62639 ("arm64: dts: ti: Introduce AM62A7 family of SoCs")
Signed-off-by: Nitin Yadav <n-yadav@ti.com>
Link: https://lo... | ```diff
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 4ae7fdc5221b..ccd708b09acd 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -462,7 +462,7 @@
<193>, <194>, <195>;
interrupt-controller;
... |
96d7e79401364c6e9a63af5f74f76792b03cb832 | Analyze and fix the following issue in the Linux kernel code: drm/i915: Check pipe active state in {planes,vrr}_{enabling,disabling}() | Problem Details:
{planes,vrr}_{enabling,disabling}() are supposed to indicate
whether the specific hardware feature is supposed to be enabling
or disabling. That can only makes sense if the pipe is active
overall. So check for that before we go poking at the hardware.
I think we're semi-safe currently on due to:
- int... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index a2a806262c9e..94330108145e 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -906,12 +906,18 @@ static bool needs_async_flip_vtd_wa(const s... |
75475bb51e78a3f54ad2f69380f2a1c985e85f2d | Analyze and fix the following issue in the Linux kernel code: ipv6: fix potential NULL deref in fib6_add() | Problem Details:
If fib6_find_prefix() returns NULL, we should silently fallback
using fib6_null_entry regardless of RT6_DEBUG value.
syzbot reported:
WARNING: CPU: 0 PID: 5477 at net/ipv6/ip6_fib.c:1516 fib6_add+0x310d/0x3fa0 net/ipv6/ip6_fib.c:1516
Modules linked in:
CPU: 0 PID: 5477 Comm: syz-executor.0 Not tainte... | ```diff
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 28b01a068412..7772f42ff2b9 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1511,13 +1511,9 @@ out:
if (!pn_leaf && !(pn->fn_flags & RTN_RTINFO)) {
pn_leaf = fib6_find_prefix(info->nl_net, table,
pn);
-#if RT6_DEBUG >= 2
... |
a1461f1fd6cfdc4b8917c9d4a91e92605d1f28dc | Analyze and fix the following issue in the Linux kernel code: rethook: Use __rcu pointer for rethook::handler | Problem Details:
Since the rethook::handler is an RCU-maganged pointer so that it will
notice readers the rethook is stopped (unregistered) or not, it should
be an __rcu pointer and use appropriate functions to be accessed. This
will use appropriate memory barrier when accessing it. OTOH,
rethook::data is never changed... | ```diff
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 64672bace560..0ff44d6633e3 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -197,10 +197,8 @@ extern int arch_trampoline_kprobe(struct kprobe *p);
#ifdef CONFIG_KRETPROBE_ON_RETHOOK
static nokprobe_inline struct kretprob... |
d839a656d0f3caca9f96e9bf912fd394ac6a11bc | Analyze and fix the following issue in the Linux kernel code: kprobes: consistent rcu api usage for kretprobe holder | Problem Details:
It seems that the pointer-to-kretprobe "rp" within the kretprobe_holder is
RCU-managed, based on the (non-rethook) implementation of get_kretprobe().
The thought behind this patch is to make use of the RCU API where possible
when accessing this pointer so that the needed barriers are always in place
an... | ```diff
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index ab1da3142b06..64672bace560 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -139,7 +139,7 @@ static inline bool kprobe_ftrace(struct kprobe *p)
*
*/
struct kretprobe_holder {
- struct kretprobe *rp;
+ struct kretprobe... |
d67f39d2b81b6a8259944d2400c1ff4fe283ff72 | Analyze and fix the following issue in the Linux kernel code: lib: objpool: fix head overrun on RK3588 SBC | Problem Details:
objpool overrun stress with test_objpool on OrangePi5+ SBC triggered the
following kernel warnings:
WARNING: CPU: 6 PID: 3115 at lib/objpool.c:168 objpool_push+0xc0/0x100
This message is from objpool.c:168:
WARN_ON_ONCE(tail - head > pool->nr_objs);
The overrun test case is to validate the ... | ```diff
diff --git a/lib/objpool.c b/lib/objpool.c
index ce0087f64400..cfdc02420884 100644
--- a/lib/objpool.c
+++ b/lib/objpool.c
@@ -201,6 +201,23 @@ static inline void *objpool_try_get_slot(struct objpool_head *pool, int cpu)
while (head != READ_ONCE(slot->last)) {
void *obj;
+ /*
+ * data visibility of 'l... |
619f75dae2cf117b1d07f27b046b9ffb071c4685 | Analyze and fix the following issue in the Linux kernel code: ext4: fix warning in ext4_dio_write_end_io() | Problem Details:
The syzbot has reported that it can hit the warning in
ext4_dio_write_end_io() because i_size < i_disksize. Indeed the
reproducer creates a race between DIO IO completion and truncate
expanding the file and thus ext4_dio_write_end_io() sees an inconsistent
inode state where i_disksize is already update... | ```diff
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 0166bb9ca160..6aa15dafc677 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -349,9 +349,10 @@ static void ext4_inode_extension_cleanup(struct inode *inode, ssize_t count)
return;
}
/*
- * If i_disksize got extended due to writeback of delalloc blocks... |
1fefca6c57fb928d2131ff365270cbf863d89c88 | Analyze and fix the following issue in the Linux kernel code: hwmon: (acpi_power_meter) Fix 4.29 MW bug | Problem Details:
The ACPI specification says:
"If an error occurs while obtaining the meter reading or if the value
is not available then an Integer with all bits set is returned"
Since the "integer" is 32 bits in case of the ACPI power meter,
userspace will get a power reading of 2^32 * 1000 miliwatts (~4.29 MW)
in ... | ```diff
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 8db740214ffd..703666b95bf4 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -31,6 +31,7 @@
#define POWER_METER_CAN_NOTIFY (1 << 3)
#define POWER_METER_IS_BATTERY (1 << 8)
#define UNKN... |
2dcf5fde6dffb312a4bfb8ef940cea2d1f402e32 | Analyze and fix the following issue in the Linux kernel code: ext4: prevent the normalized size from exceeding EXT_MAX_BLOCKS | Problem Details:
For files with logical blocks close to EXT_MAX_BLOCKS, the file size
predicted in ext4_mb_normalize_request() may exceed EXT_MAX_BLOCKS.
This can cause some blocks to be preallocated that will not be used.
And after [Fixes], the following issue may be triggered:
=======================================... | ```diff
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 454d5612641e..d72b5e3c92ec 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4478,6 +4478,10 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
start = max(start, rounddown(ac->ac_o_ex.fe_logical,
(ext4_lblk_t)EXT4_BLOCKS_PER_... |
130a83879954a9fed35cf4474d223b4fcfd479fa | Analyze and fix the following issue in the Linux kernel code: selftests: sched: Remove initialization to 0 for a static variable | Problem Details:
Fixes following checkpatch.pl issue:
ERROR: do not initialise statics to 0
Signed-off-by: Atul Kumar Pant <atulpant.linux@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> | ```diff
diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c
index 3e1619b6bf2d..7ba057154343 100644
--- a/tools/testing/selftests/sched/cs_prctl_test.c
+++ b/tools/testing/selftests/sched/cs_prctl_test.c
@@ -72,7 +72,7 @@ struct child_args {
static struct child_... |
49360d978411eeaeffb96938edb53ee75ba471bc | Analyze and fix the following issue in the Linux kernel code: selftests: capabilities: namespace create varies for root and normal user | Problem Details:
This patchset fixes TODO:
"If we're already root, we could skip creating the userns."
Change namespace creation for root and non-root
user differently in create_and_enter_ns() function
in this file:
tools/testing/selftests/capabilities/test_execve.c
Test result with root user:
$sudo make TARGETS="ca... | ```diff
diff --git a/tools/testing/selftests/capabilities/test_execve.c b/tools/testing/selftests/capabilities/test_execve.c
index e3a352b020a7..7cde07a5df78 100644
--- a/tools/testing/selftests/capabilities/test_execve.c
+++ b/tools/testing/selftests/capabilities/test_execve.c
@@ -88,11 +88,7 @@ static bool create_and... |
b719a9c15d52d4f56bdea8241a5d90fd9197ce99 | Analyze and fix the following issue in the Linux kernel code: drm/amd/display: Fix NULL pointer dereference at hibernate | Problem Details:
During hibernate sequence the source context might not have a clk_mgr.
So don't use it to look for DML2 support.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2980
Fixes: 7966f319c66d ("drm/amd/display: Introduce DML2")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario ... | ```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 f3a9fdd2340d..e1c02527d04a 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -4554,7 +4554,7 @@ void dc_resource_state_... |
71225e1c930942cb1e042fc08c5cc0c4ef30e95e | Analyze and fix the following issue in the Linux kernel code: drm/radeon: check return value of radeon_ring_lock() | Problem Details:
In the unlikely event of radeon_ring_lock() failing, its errno return
value should be processed. This patch checks said return value and
prints a debug message in case of an error.
Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.
Fixes: 48c0c902e2e6 ("drm/radeon/... | ```diff
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index a91012447b56..85e9cba49cec 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -3611,6 +3611,10 @@ static int si_cp_start(struct radeon_device *rdev)
for (i = RADEON_RING_TYPE_GFX_INDEX; i <= CAYMAN_RING_TYP... |
b5c5baa458faa5430c445acd9a17481274d77ccf | Analyze and fix the following issue in the Linux kernel code: drm/radeon/r100: Fix integer overflow issues in r100_cs_track_check() | Problem Details:
It may be possible, albeit unlikely, to encounter integer overflow
during the multiplication of several unsigned int variables, the
result being assigned to a variable 'size' of wider type.
Prevent this potential behaviour by converting one of the multiples
to unsigned long.
Found by Linux Verificati... | ```diff
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index affa9e0309b2..cfeca2694d5f 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2321,7 +2321,7 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track)
switch (prim_walk) {... |
39c960bbf9d9ea862398759e75736cfb68c3446f | Analyze and fix the following issue in the Linux kernel code: drm/radeon/r600_cs: Fix possible int overflows in r600_cs_check_reg() | Problem Details:
While improbable, there may be a chance of hitting integer
overflow when the result of radeon_get_ib_value() gets shifted
left.
Avoid it by casting one of the operands to larger data type (u64).
Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.
Fixes: 1729dd33d20... | ```diff
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 638f861af80f..6cf54a747749 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -1275,7 +1275,7 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
return -EINV... |
f875f61b1fd626a4223a5bdf0339b5372c689e13 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: enable mca debug mode on APU by default | Problem Details:
enable MCA debug mode on APU device by default.
Signed-off-by: Yang Wang <kevinyang.wang@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_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index f6b47ebce9d6..72634d675e27 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -3132,7 +3132,8 @@ int amdgpu_ras_late_init(struct amdgpu_device *adev)
if (amdg... |
00f9d49bce844e8196e0c2ea298f9a41a11129d9 | Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: Fix missing mca debugfs node | Problem Details:
Use amdgpu_ip_version() helper function to check ip version.
The ip version contains other information,
use the helper function to avoid reading wrong value.
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@a... | ```diff
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c
index 54f2f346579e..210aea590a52 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c
@@ -485,7 +485,7 @@ DEFINE_DEBUGFS_ATTRIBUTE(mca_debug_mode_fops, NULL, amdgpu_mca_sm... |
af76b2dec0984a079d8497bfa37d29a9b55932e1 | Analyze and fix the following issue in the Linux kernel code: libapi: Add missing linux/types.h header to get the __u64 type on io.h | Problem Details:
There are functions using __u64, so we need to have the linux/types.h
header otherwise we'll break when its not included before api/io.h.
Fixes: e95770af4c4a280f ("tools api: Add a lightweight buffered reading api")
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.co... | ```diff
diff --git a/tools/lib/api/io.h b/tools/lib/api/io.h
index a77b74c5fb65..2a7fe9758813 100644
--- a/tools/lib/api/io.h
+++ b/tools/lib/api/io.h
@@ -12,6 +12,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <linux/types.h>
struct io {
/* File descriptor being read/ */
``` |
706785c19fe92186815bdb9ae0148c4ba7262669 | Analyze and fix the following issue in the Linux kernel code: drm/i915/guc: Add a selftest for FAST_REQUEST errors | Problem Details:
There is a mechanism for reporting errors from fire and forget H2G
messages. This is the only way to find out about almost any error in
the GuC backend submission path. So it would be useful to know that it
is working.
v2: Fix some dumb over-complications and a couple of typos - review
feedback from D... | ```diff
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index 2b6dfe62c8f2..e22c12ce245a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
@@ -297,6 +297,10 @@ struct intel_guc {
* @number_guc_id_stolen: The number of guc_ids... |
b7d2a4da38fb558832b70c6f45929649a9d114a3 | Analyze and fix the following issue in the Linux kernel code: drm/i915/guc: Fix for potential false positives in GuC hang selftest | Problem Details:
Noticed that the hangcheck selftest is submitting a non-preemptoble
spinner. That means that even if the GuC does not die, the heartbeat
will still kick in and trigger a reset. Which is rather defeating the
purpose of the test - to verify that the heartbeat will kick in if the
GuC itself has died. The ... | ```diff
diff --git a/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c b/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c
index 34b5d952e2bc..26fdc392fce6 100644
--- a/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/uc/selftest_guc_hangcheck.c
@@ -74,7 +74,7 @@ static int intel_ha... |
e63e1354125f923f1f5a393dd63c074427382e7e | Analyze and fix the following issue in the Linux kernel code: kselftest/vDSO: Fix message formatting for clock_id logging | Problem Details:
When logging the ID of the currently tested clock vdso_test_clock() puts a
spurious newline at the start of the format string resulting in output
such as
#
clock_id: CLOCK_BOOTTIME
which is a valid but empty KTAP informational message followed by a non
conferment output line. Remove the initial n... | ```diff
diff --git a/tools/testing/selftests/vDSO/vdso_test_abi.c b/tools/testing/selftests/vDSO/vdso_test_abi.c
index b304abae6e8f..d0e247cca58a 100644
--- a/tools/testing/selftests/vDSO/vdso_test_abi.c
+++ b/tools/testing/selftests/vDSO/vdso_test_abi.c
@@ -170,7 +170,7 @@ static void vdso_test_clock_getres(clockid_t ... |
60e76e7ac088c5146d647cc5cc3f345b54489915 | Analyze and fix the following issue in the Linux kernel code: kselftest/vDSO: Make test name reporting for vdso_abi_test tooling friendly | Problem Details:
The test results from vdso_abi_test are all formatted using a series of
macros:
#define VDSO_TEST_PASS_MSG() "\n%s(): PASS\n", __func__
#define VDSO_TEST_FAIL_MSG(x) "\n%s(): %s FAIL\n", __func__, x
#define VDSO_TEST_SKIP_MSG(x) "\n%s(): SKIP: Could not find %s\n", __func__, x
which don't play ... | ```diff
diff --git a/tools/testing/selftests/vDSO/vdso_test_abi.c b/tools/testing/selftests/vDSO/vdso_test_abi.c
index 883ca85424bc..b304abae6e8f 100644
--- a/tools/testing/selftests/vDSO/vdso_test_abi.c
+++ b/tools/testing/selftests/vDSO/vdso_test_abi.c
@@ -33,9 +33,20 @@ typedef long (*vdso_clock_gettime_t)(clockid_t... |
9686e7f59b142095ac6ad0763312ec68fc34c51a | Analyze and fix the following issue in the Linux kernel code: selftests:x86: Fix Format String Warnings in lam.c | Problem Details:
This commit addresses compiler warnings in lam.c related to the usage
of non-literal format strings without format arguments in the
'run_test' function.
Warnings fixed:
- Resolved warnings indicating that 'ksft_test_result_skip' and
'ksft_test_result' were called with 't->msg' as a format string witho... | ```diff
diff --git a/tools/testing/selftests/x86/lam.c b/tools/testing/selftests/x86/lam.c
index 8f9b06d9ce03..215b8150b7cc 100644
--- a/tools/testing/selftests/x86/lam.c
+++ b/tools/testing/selftests/x86/lam.c
@@ -817,7 +817,7 @@ static void run_test(struct testcases *test, int count)
/* return 3 is not support L... |
5e551899788b0731761052f21febdfef668e511f | Analyze and fix the following issue in the Linux kernel code: selftests/breakpoints: Fix format specifier in ksft_print_msg in step_after_suspend_test.c | Problem Details:
In the function 'tools/testing/selftests/breakpoints/run_test' within
step_after_suspend_test.c, the ksft_print_msg function call incorrectly
used '$s' as a format specifier. This commit corrects this typo to use the
proper '%s' format specifier, ensuring the error message from
waitpid() is correctly d... | ```diff
diff --git a/tools/testing/selftests/breakpoints/step_after_suspend_test.c b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
index 2cf6f10ab7c4..b8703c499d28 100644
--- a/tools/testing/selftests/breakpoints/step_after_suspend_test.c
+++ b/tools/testing/selftests/breakpoints/step_after_suspend_test... |
e1c0b9ef26e5e46fd5c2df9e7f9686e786723f53 | Analyze and fix the following issue in the Linux kernel code: selftests:breakpoints: Fix Format String Warning in breakpoint_test | Problem Details:
This commit resolves a compiler warning regardingthe
use of non-literal format strings in breakpoint_test.c.
The functions `ksft_test_result_pass` and `ksft_test_result_fail`
were previously called with a variable `msg` directly, which could
potentially lead to format string vulnerabilities.
Changes ... | ```diff
diff --git a/tools/testing/selftests/breakpoints/breakpoint_test.c b/tools/testing/selftests/breakpoints/breakpoint_test.c
index 3266cc9293fe..d46962a24724 100644
--- a/tools/testing/selftests/breakpoints/breakpoint_test.c
+++ b/tools/testing/selftests/breakpoints/breakpoint_test.c
@@ -284,9 +284,9 @@ static vo... |
573cc0e5cf142d9992d2de3502800890fc717bc0 | Analyze and fix the following issue in the Linux kernel code: KVM: x86: Harden copying of userspace-array against overflow | Problem Details:
cpuid.c utilizes vmemdup_user() and array_size() to copy two userspace
arrays. This, currently, does not check for an overflow.
Use the new wrapper vmemdup_array_user() to copy the arrays more safely,
as vmemdup_user() doesn't check for overflow.
Note, KVM explicitly checks the number of entries befo... | ```diff
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index dda6fc4cfae8..ad441f0d2917 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -469,7 +469,7 @@ int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
return -E2BIG;
if (cpuid->nent) {
- e = vmemdup_user(entries, array_size(sizeof(*... |
fd89499a5151d197ba30f7b801f6d8f4646cf446 | Analyze and fix the following issue in the Linux kernel code: KVM: x86/pmu: Track emulated counter events instead of previous counter | Problem Details:
Explicitly track emulated counter events instead of using the common
counter value that's shared with the hardware counter owned by perf.
Bumping the common counter requires snapshotting the pre-increment value
in order to detect overflow from emulation, and the snapshot approach is
inherently flawed.
... | ```diff
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index a565a2e70f30..562eaa938847 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -500,8 +500,23 @@ struct kvm_pmc {
u8 idx;
bool is_paused;
bool intr;
+ /*
+ * Base value of the PMC counte... |
ec61b2306dfd117ba5db93dfb54808523ea2b5e0 | Analyze and fix the following issue in the Linux kernel code: KVM: x86/pmu: Remove manual clearing of fields in kvm_pmu_init() | Problem Details:
Remove code that unnecessarily clears event_count and need_cleanup in
kvm_pmu_init(), the entire kvm_pmu is zeroed just a few lines earlier.
Vendor code doesn't set event_count or need_cleanup during .init(), and
if either VMX or SVM did set those fields it would be a flagrant bug.
Reviewed-by: Dapeng... | ```diff
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 458e836c6efe..c06090196b00 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -710,8 +710,6 @@ void kvm_pmu_init(struct kvm_vcpu *vcpu)
memset(pmu, 0, sizeof(*pmu));
static_call(kvm_x86_pmu_init)(vcpu);
- pmu->event_count = 0;
- pmu->need... |
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