{"id":"CVE-2025-68735","summary":"drm/panthor: Prevent potential UAF in group creation","details":"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 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","modified":"2026-04-02T13:03:45.214669Z","published":"2025-12-24T12:09:34.364Z","related":["SUSE-SU-2026:0962-1","SUSE-SU-2026:1081-1","SUSE-SU-2026:20555-1","SUSE-SU-2026:20599-1","SUSE-SU-2026:20615-1","openSUSE-SU-2026:10039-1","openSUSE-SU-2026:10301-1","openSUSE-SU-2026:20287-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68735.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/c646ebff3fa571e7ea974235286fb9ed3edc260c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eec7e23d848d2194dd8791fcd0f4a54d4378eecd"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68735.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68735"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"de85488138247d034eb3241840424a54d660926b"},{"fixed":"deb8b2491f6b9882ae02d7dc2651c7bf4f3b7e05"},{"fixed":"c646ebff3fa571e7ea974235286fb9ed3edc260c"},{"fixed":"eec7e23d848d2194dd8791fcd0f4a54d4378eecd"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68735.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.10.0"},{"fixed":"6.17.13"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"6.18.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68735.json"}}],"schema_version":"1.7.5"}