{"id":"CVE-2026-68238","summary":"drm/amdgpu: Release VFCT ACPI table reference","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Release VFCT ACPI table reference\n\namdgpu_acpi_vfct_bios() fetches the VFCT table with acpi_get_table()\nbut never releases it. acpi_get_table() takes a reference on the\ntable (incrementing its validation_count and mapping it on the 0-\u003e1\ntransition); without a paired acpi_put_table() the mapping is leaked\non every call, whether or not a matching VBIOS image is found.\n\nRoute all exit paths after the table is acquired through a common\nacpi_put_table(). The VBIOS image is copied out with kmemdup() before\nthe table is released, so it remains valid for the caller.\n\n(cherry picked from commit ca5988682b4cba4cd125a0fa99b2de1239164ae4)","modified":"2026-08-26T03:49:46.482517736Z","published":"2026-08-10T12:01:03.277Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68238.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/312278b3091912fa56a6a587609f17dcb33465c2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/65bff26617607c1331283232016c0e89088c5b78"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68238.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68238"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21"},{"fixed":"312278b3091912fa56a6a587609f17dcb33465c2"},{"fixed":"9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"},{"fixed":"65bff26617607c1331283232016c0e89088c5b78"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68238.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68238.json"}}],"schema_version":"1.9.0"}