drm/amd/pm: fix pptable use-after-free
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)
CVE-2026-74450
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74450
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "1684d3ba488529266ce6f97b88076bd185f4790e",
"lessThan": "3fbb3ac75000e3187f500a91a4099b24206866a1",
"versionType": "git"
},
{
"status": "affected",
"version": "1684d3ba488529266ce6f97b88076bd185f4790e",
"lessThan": "9efc767335234cf7a892e46d45cd453b711421e7",
"versionType": "git"
},
{
"status": "affected",
"version": "1684d3ba488529266ce6f97b88076bd185f4790e",
"lessThan": "81b5af1fb0f14cace6c3b3130a05e5602a597820",
"versionType": "git"
},
{
"status": "affected",
"version": "1684d3ba488529266ce6f97b88076bd185f4790e",
"lessThan": "8c685df5c3b261c42505110965b42f9a754eb9b7",
"versionType": "git"
},
{
"status": "affected",
"version": "1684d3ba488529266ce6f97b88076bd185f4790e",
"lessThan": "b628f2c6feb3a115ea72d3120a2bd94afc5163df",
"versionType": "git"
},
{
"status": "affected",
"version": "1684d3ba488529266ce6f97b88076bd185f4790e",
"lessThan": "bb493058c35c8676e48269ab6732688ea733d23c",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/pm/amdgpu_dpm.c",
"drivers/gpu/drm/amd/pm/amdgpu_pm.c",
"drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.184",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.153",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.105",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.46",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/pm/amdgpu_dpm.c",
"drivers/gpu/drm/amd/pm/amdgpu_pm.c",
"drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74450
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #33157 · Revision 1
- Added to Heist Feed
- Publisher date