drm/msm/dpu: Add mutex lock in control vblank irq
CVE-2023-52586 · published 6 Mar 2024
How serious is it
- Severity: high, CVSS score 7.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2023-52586?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef to < f6dd625053726ea2a209282bee97218f2ec04149, 25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef to < 14f109bf74dd67e1d0469fed859c8e506b0df53f, 25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef to < 45284ff733e4caf6c118aae5131eb7e7cf3eea5a
- Linux Linux: 4.19
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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/
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/f6dd625053726ea2a209282bee97218f2ec04149
- git.kernel.org/stable/c/14f109bf74dd67e1d0469fed859c8e506b0df53f
- git.kernel.org/stable/c/45284ff733e4caf6c118aae5131eb7e7cf3eea5a
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON