Home

Description

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

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2025-12-24 | Assigner Linux

Product status

Default status
unaffected

de85488138247d034eb3241840424a54d660926b (git) before deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05
affected

de85488138247d034eb3241840424a54d660926b (git) before c646ebff3fa571e7ea974235286fb9ed3edc260c
affected

de85488138247d034eb3241840424a54d660926b (git) before eec7e23d848d2194dd8791fcd0f4a54d4378eecd
affected

Default status
affected

6.10
affected

Any version before 6.10
unaffected

6.17.13 (semver)
unaffected

6.18.2 (semver)
unaffected

6.19-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05

git.kernel.org/...c/c646ebff3fa571e7ea974235286fb9ed3edc260c

git.kernel.org/...c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd

cve.org (CVE-2025-68735)

nvd.nist.gov (CVE-2025-68735)

Download JSON

Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.