drm/panthor: Prevent potential UAF in group creation
CVE-2025-68735 · published 24 Dec 2025
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-2025-68735?
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Who is affected
- Linux Linux: de85488138247d034eb3241840424a54d660926b to < c6bbec068a9accd6f1df05f3df9a5254c99292ee, de85488138247d034eb3241840424a54d660926b to < deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05, de85488138247d034eb3241840424a54d660926b to < c646ebff3fa571e7ea974235286fb9ed3edc260c, de85488138247d034eb3241840424a54d660926b to < eec7e23d848d2194dd8791fcd0f4a54d4378eecd
- Linux Linux: 6.10
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/panthor: Prevent potential UAF in group creation
This commit prevents the possibility of a use after free issue in the
GROUP_CREATE ioctl function, which arose as pointer to the group is
accessed in that ioctl function after storing it in the Xarray.
A malicious userspace can second guess the handle of a group and try
to call GROUP_DESTROY ioctl from another thread around the same time
as GROUP_CREATE ioctl.
To prevent the use after free exploit, this commit uses a mark on an
entry of group pool Xarray which is added just before returning from
the GROUP_CREATE ioctl function. The mark is checked for all ioctls
that specify the group handle and so userspace won't be abe to delete
a group that isn't marked yet.
v2: Add R-bs and fixes tags
Check your whole app
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References
- git.kernel.org/stable/c/c6bbec068a9accd6f1df05f3df9a5254c99292ee
- git.kernel.org/stable/c/deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05
- git.kernel.org/stable/c/c646ebff3fa571e7ea974235286fb9ed3edc260c
- git.kernel.org/stable/c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON