CVE-2026-68238

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68238", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.376Z", "datePublished": "2026-08-10T12:01:03.277Z", "dateUpdated": "2026-10-30T12:28:10.657Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:28:10.657Z"}, "descriptions": [{"lang": "en", "value": "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->1\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)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c"], "versions": [{"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "1c19e02a689661a9687d689dcc5995d3be538262", "status": "affected", "versionType": "git"}, {"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "1748043b5114ce5ee5ee874d5f821a158d70631c", "status": "affected", "versionType": "git"}, {"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "50a75929c0c5e8ab29a3ac49dc92489873d9d261", "status": "affected", "versionType": "git"}, {"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "312278b3091912fa56a6a587609f17dcb33465c2", "status": "affected", "versionType": "git"}, {"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8", "status": "affected", "versionType": "git"}, {"version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "65bff26617607c1331283232016c0e89088c5b78", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c"], "versions": [{"version": "4.2", "status": "affected"}, {"version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1c19e02a689661a9687d689dcc5995d3be538262"}, {"url": "https://git.kernel.org/stable/c/1748043b5114ce5ee5ee874d5f821a158d70631c"}, {"url": "https://git.kernel.org/stable/c/50a75929c0c5e8ab29a3ac49dc92489873d9d261"}, {"url": "https://git.kernel.org/stable/c/312278b3091912fa56a6a587609f17dcb33465c2"}, {"url": "https://git.kernel.org/stable/c/9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"}, {"url": "https://git.kernel.org/stable/c/65bff26617607c1331283232016c0e89088c5b78"}], "title": "drm/amdgpu: Release VFCT ACPI table reference", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1c19e02a689661a9687d689dcc5995d3be538262", "status": "affected", "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "versionType": "git"}, {"lessThan": "1748043b5114ce5ee5ee874d5f821a158d70631c", "status": "affected", "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "versionType": "git"}, {"lessThan": "50a75929c0c5e8ab29a3ac49dc92489873d9d261", "status": "affected", "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "versionType": "git"}, {"lessThan": "312278b3091912fa56a6a587609f17dcb33465c2", "status": "affected", "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "versionType": "git"}, {"lessThan": "9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8", "status": "affected", "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "versionType": "git"}, {"lessThan": "65bff26617607c1331283232016c0e89088c5b78", "status": "affected", "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"lessThan": "4.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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->1\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)"}], "id": "CVE-2026-68238", "lastModified": "2026-10-30T13:19:41.863", "metrics": {}, "published": "2026-08-10T13:20:12.163", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1748043b5114ce5ee5ee874d5f821a158d70631c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1c19e02a689661a9687d689dcc5995d3be538262"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/312278b3091912fa56a6a587609f17dcb33465c2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50a75929c0c5e8ab29a3ac49dc92489873d9d261"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/65bff26617607c1331283232016c0e89088c5b78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/amdgpu: Resource Leak in ACPI Table Handling", "id": "2513200", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513200"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu: Release VFCT ACPI table reference\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->1\ntransition); without a paired acpi_put_table() the mapping is leaked\non every call, whether or not a matching VBIOS image is found.\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(cherry picked from commit ca5988682b4cba4cd125a0fa99b2de1239164ae4)", "A flaw was found in the `drm/amdgpu` component of the Linux kernel. The `amdgpu_acpi_vfct_bios()` function fails to release a reference to the VFCT ACPI table after fetching it. This oversight leads to a resource leak, where memory allocated for the table mapping is not properly freed, potentially impacting system stability over time."], "name": "CVE-2026-68238", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:01:03Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68238\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68238\nhttps://git.kernel.org/stable/c/312278b3091912fa56a6a587609f17dcb33465c2\nhttps://git.kernel.org/stable/c/65bff26617607c1331283232016c0e89088c5b78\nhttps://git.kernel.org/stable/c/9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,312278b3091912fa56a6a587609f17dcb33465c2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,9b7de3ee5d2c5ee2a706e5f7ca0126f4fbea4da8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,65bff26617607c1331283232016c0e89088c5b78)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.42)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.1.6)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T15:00:03.821501+00:00", "updated": "2026-08-13T09:00:11.360195+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}