CVE-2026-68238
- Source
- https://cve.org/CVERecord?id=CVE-2026-68238
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68238.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-68238
- Downstream
- Published
- 2026-08-10T12:01:03Z
- Modified
- 2026-08-26T03:49:46Z
- Summary
- drm/amdgpu: Release VFCT ACPI table reference
- Details
-
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)
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68238.json" }- References
-
- https://git.kernel.org/stable/c/312278b3091912fa56a6a587609f17dcb33465c2
- https://git.kernel.org/stable/c/65bff26617607c1331283232016c0e89088c5b78
- https://git.kernel.org/stable/c/9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68238.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-68238
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git