In the Linux kernel, the following vulnerability has been resolved:
drm/msm/dpu: Add mutex lock in control vblank irq
Add a mutex lock to control vblank irq to synchronize vblank
enable/disable operations happening from different threads to prevent
race conditions while registering/unregistering the vblank irq callback.
v4: -Removed vblank_ctl_lock from dpu_encoder_virt, so it is only a
parameter of dpu_encoder_phys.
-Switch from atomic refcnt to a simple int counter as mutex has
now been added
v3: Mistakenly did not change wording in last version. It is done now.
v2: Slightly changed wording of commit message
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c",
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h",
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c",
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c"
],
"versions": [
{
"version": "1da177e4c3f4",
"lessThan": "14f109bf74dd",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "45284ff733e4",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c",
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h",
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c",
"drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c"
],
"versions": [
{
"version": "6.7.4",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]