CVE-2026-63854

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{"bugzilla": {"description": "kernel: drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings", "id": "2502312", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502312"}, "csaw": false, "cwe": "CWE-1287", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings\nVCN encoder and decoder rings do not support 64-bit user fence writes,\nreject CS submissions with user fences.\n(cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614)", "A flaw was found in the Linux kernel's AMDGPU driver, specifically within the Video Core Next (VCN) version 3.0 encoder and decoder rings. These rings do not support 64-bit user fence writes. A local user could trigger this by attempting to submit commands with 64-bit user fences, which would result in the rejection of these submissions, effectively causing a denial of service for those specific operations."], "name": "CVE-2026-63854", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63854\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63854\nhttps://lore.kernel.org/linux-cve-announce/2026071932-CVE-2026-63854-0287@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cf14826cdfb5c9fe10f98210d040b9d7486c381d,e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cf14826cdfb5c9fe10f98210d040b9d7486c381d,26c4f38529ac78930c9c4713e16ebc5b689bb0a3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cf14826cdfb5c9fe10f98210d040b9d7486c381d,2d6525e7b2504f5bbfe9417cddc1e8da858791dd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cf14826cdfb5c9fe10f98210d040b9d7486c381d,b076e45e6f757a2829e80d0144c1b5f201bee5af)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cf14826cdfb5c9fe10f98210d040b9d7486c381d,f1e5a6660d7cbf006079126d9babbf0ccf538c6b)"}}], "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": "affected", "versions": {"scheme": "generic", "value": "5.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-07-21T08:00:04.017871+00:00", "updated": "2026-10-27T02:45:17.392692+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}