{"id":"CVE-2026-74450","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74450","summary":"drm/amd/pm: fix pptable use-after-free","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/pm: fix pptable use-after-free\n\namdgpu_dpm_get_pp_table() returns a pointer to a driver-owned power table\nafter dropping adev->pm.mutex. The sysfs path then copies from that pointer.\nA concurrent pp_table write can replace and free the allocation during the\ncopy, causing a use-after-free.\n\nChange the DPM interface to copy into caller-provided storage while the mutex\nis held. Keep the size-only query for attribute discovery without exposing\nthe driver-owned pointer.\n\n(cherry picked from commit f6eed7acfd30099ef7baeb6ba45bb59daad80631)","published":"2026-08-15T12:26:55.127Z","modified":"2026-08-18T03:56:48.606998856Z","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":"7.1.8"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/b628f2c6feb3a115ea72d3120a2bd94afc5163df"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bb493058c35c8676e48269ab6732688ea733d23c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74450.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74450"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:48.606998856Z"}}