drm/amdgpu: Release VFCT ACPI table reference (Linux Linux)

CVE-2026-68238
Not available

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 7 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Received

Description

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)

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 1c19e02a689661a9687d689dcc5995d3be538262 ; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 1748043b5114ce5ee5ee874d5f821a158d70631c ; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 50a75929c0c5e8ab29a3ac49dc92489873d9d261 ; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 312278b3091912fa56a6a587609f17dcb33465c2 ; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8 ; affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 < 65bff26617607c1331283232016c0e89088c5b78
Linux · Linuxaffected 4.2 ; unaffected 0 < 4.2 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.42 ≤ 6.18.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD