drm/amdgpu: Release VFCT ACPI table reference
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Release VFCT ACPI table reference amdgpu_acpi_vfct_bios() fetches the VFCT table with acpi_get_table() but never releases it. acpi_get_table() takes a reference on the table (incrementing its validation_count and mapping it on the 0->1 transition); without a paired acpi_put_table() the mapping is leaked on every call, whether or not a matching VBIOS image is found. Route all exit paths after the table is acquired through a common acpi_put_table(). The VBIOS image is copied out with kmemdup() before the table is released, so it remains valid for the caller. (cherry picked from commit ca5988682b4cba4cd125a0fa99b2de1239164ae4)
CVE-2026-68238
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-2026-68238
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": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21",
"lessThan": "1748043b5114ce5ee5ee874d5f821a158d70631c",
"versionType": "git"
},
{
"status": "affected",
"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21",
"lessThan": "50a75929c0c5e8ab29a3ac49dc92489873d9d261",
"versionType": "git"
},
{
"status": "affected",
"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21",
"lessThan": "312278b3091912fa56a6a587609f17dcb33465c2",
"versionType": "git"
},
{
"status": "affected",
"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21",
"lessThan": "9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8",
"versionType": "git"
},
{
"status": "affected",
"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21",
"lessThan": "65bff26617607c1331283232016c0e89088c5b78",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-68238
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46451 · Revision 1
- Added to Heist Feed
- Publisher date