Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix pptable use-after-free amdgpu_dpm_get_pp_table() returns a pointer to a driver-owned power table after dropping adev->pm.mutex. The sysfs path then copies from that pointer. A concurrent pp_table write can replace and free the allocation during the copy, causing a use-after-free. Change the DPM interface to copy into caller-provided storage while the mutex is held. Keep the size-only query for attribute discovery without exposing the driver-owned pointer. (cherry picked from commit f6eed7acfd30099ef7baeb6ba45bb59daad80631)
References6
- git.kernel.org/stable/c/3fbb3ac75000e3187f500a91a4099b24206866a1
- git.kernel.org/stable/c/81b5af1fb0f14cace6c3b3130a05e5602a597820
- git.kernel.org/stable/c/8c685df5c3b261c42505110965b42f9a754eb9b7
- git.kernel.org/stable/c/9efc767335234cf7a892e46d45cd453b711421e7
- git.kernel.org/stable/c/b628f2c6feb3a115ea72d3120a2bd94afc5163df
- git.kernel.org/stable/c/bb493058c35c8676e48269ab6732688ea733d23c
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 11 November 2026
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