{"id":"CVE-2025-68735","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Prevent potential UAF in group creation\n\nThis commit prevents the possibility of a use after free issue in the\nGROUP_CREATE ioctl function, which arose as …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Prevent potential UAF in group creation\n\nThis commit prevents the possibility of a use after free issue in the\nGROUP_CREATE ioctl function, which arose as …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","published":"2025-12-24","updated":"2026-10-13","sourceUpdated":"2026-10-13T10:10:00.193","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-68735","references":[{"url":"https://git.kernel.org/stable/c/c646ebff3fa571e7ea974235286fb9ed3edc260c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00178,"epssPercentile":0.06783,"ingestedAt":"2026-10-13T10:22:03.516Z","slug":"CVE-2025-68735","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Prevent potential UAF in group creation\n\nThis commit prevents the possibility of a use after free issue in the\nGROUP_CREATE ioctl function, which arose as pointer to the group is\naccessed in that ioctl function after storing it in the Xarray.\nA malicious userspace can second guess the handle of a group and try\nto call GROUP_DESTROY ioctl from another thread around the same time\nas GROUP_CREATE ioctl.\n\nTo prevent the use after free exploit, this commit uses a mark on an\nentry of group pool Xarray which is added just before returning from\nthe GROUP_CREATE ioctl function. The mark is checked for all ioctls\nthat specify the group handle and so userspace won't be abe to delete\na group that isn't marked yet.\n\nv2: Add R-bs and fixes tags\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}