CVE-2026-74450
drm/amd/pm: fix pptable use-after-free
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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)
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
| Last Updated | Aug 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
1684d3ba488529266ce6f97b88076bd185f4790e < 3fbb3ac75000e3187f500a91a4099b24206866a1 1684d3ba488529266ce6f97b88076bd185f4790e < 9efc767335234cf7a892e46d45cd453b711421e7 1684d3ba488529266ce6f97b88076bd185f4790e < 81b5af1fb0f14cace6c3b3130a05e5602a597820 1684d3ba488529266ce6f97b88076bd185f4790e < 8c685df5c3b261c42505110965b42f9a754eb9b7 1684d3ba488529266ce6f97b88076bd185f4790e < b628f2c6feb3a115ea72d3120a2bd94afc5163df 1684d3ba488529266ce6f97b88076bd185f4790e < bb493058c35c8676e48269ab6732688ea733d23c
Linux / Linux
4.9
References
git.kernel.org: https://git.kernel.org/stable/c/3fbb3ac75000e3187f500a91a4099b24206866a1 git.kernel.org: https://git.kernel.org/stable/c/9efc767335234cf7a892e46d45cd453b711421e7 git.kernel.org: https://git.kernel.org/stable/c/81b5af1fb0f14cace6c3b3130a05e5602a597820 git.kernel.org: https://git.kernel.org/stable/c/8c685df5c3b261c42505110965b42f9a754eb9b7 git.kernel.org: https://git.kernel.org/stable/c/b628f2c6feb3a115ea72d3120a2bd94afc5163df git.kernel.org: https://git.kernel.org/stable/c/bb493058c35c8676e48269ab6732688ea733d23c