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CVE-2023-52586

Disclosure Date: March 06, 2024
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Description

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

Patchwork: https://patchwork.freedesktop.org/patch/571854/

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CVSS V3 Severity and Metrics
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Attack Vector (AV):
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General Information

Vendors

  • Linux

Products

  • Linux

Additional Info

Technical Analysis