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)
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 1684d3ba488529266ce6f97b88076bd185f4790e, < 3fbb3ac75000e3187f500a91a4099b24206866a1; >= 1684d3ba488529266ce6f97b88076bd185f4790e, < 9efc767335234cf7a892e46d45cd453b711421e7; >= 1684d3ba488529266ce6f97b88076bd185f4790e, < 81b5af1fb0f14cace6c3b3130a05e5602a597820; >= 1684d3ba488529266ce6f97b88076bd185f4790e, < 8c685df5c3b261c42505110965b42f9a754eb9b7; >= 1684d3ba488529266ce6f97b88076bd185f4790e, < b628f2c6feb3a115ea72d3120a2bd94afc5163df; >= 1684d3ba488529266ce6f97b88076bd185f4790e, < bb493058c35c8676e48269ab6732688ea733d23c |
| Linux | Linux | 4.9 |
References
- https://git.kernel.org/stable/c/3fbb3ac75000e3187f500a91a4099b24206866a1
- https://git.kernel.org/stable/c/81b5af1fb0f14cace6c3b3130a05e5602a597820
- https://git.kernel.org/stable/c/8c685df5c3b261c42505110965b42f9a754eb9b7
- https://git.kernel.org/stable/c/9efc767335234cf7a892e46d45cd453b711421e7
- https://git.kernel.org/stable/c/b628f2c6feb3a115ea72d3120a2bd94afc5163df
- https://git.kernel.org/stable/c/bb493058c35c8676e48269ab6732688ea733d23c
Timeline
- Published
- Aug 15, 2026
- Last modified
- Oct 16, 2026
- NVD status
- Received