{"id":"CVE-2026-72449","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-72449","summary":"drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix list_del corruption in kfd_criu_resume_svm\n\nThe cleanup tail of kfd_criu_resume_svm() walks\nsvms->criu_svm_metadata_list and kfree()s each struct criu_svm_metadata\nwithout removing it from the list. The list head is left pointing at\nfreed kmalloc-96 objects.\n\nA second AMDKFD_IOC_CRIU_OP from the same process re-enters: list_empty()\nreads the dangling ->next (use-after-free), the loop walks freed entries,\nand each is kfree()'d again (double-free). This is reachable by an\nunprivileged render-group user via /dev/kfd with no capabilities required.\n\nAdd list_del() before the kfree() so the list is properly emptied. The\nlist_for_each_entry_safe() iterator already caches the next pointer, so\nunlinking during the walk is safe.\n\n(cherry picked from commit 6322d278a298e2c1430b9d2697743d3a04b788b1)","published":"2026-08-15T05:56:58.313Z","modified":"2026-08-18T03:56:43.505469737Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.178"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/506e635aed05dbdeef11e3c59f6e42980cda5b6d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/838b57b3e7ce8cce0fda56d0861add3d464dd6c8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8fa5655da368d0306c03e9dc9cda8ae2a7840926"},{"type":"WEB","url":"https://git.kernel.org/stable/c/96ac562a9ea3020981f536384711190841c81aa8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c8a8d350a273c005a48c64c4519d21b2a51c5ceb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e33a3bd5cb8d0cf1557dee014115f812c9686130"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72449.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72449"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:43.505469737Z"}}