{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-4460", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-01T11:38:13.842Z", "datePublished": "2025-10-01T11:45:19.050Z", "dateUpdated": "2025-10-01T11:45:19.050Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-01T11:45:19.050Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix UBSAN shift-out-of-bounds warning\n\nIf get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up\ndoing a shift operation where the number of bits shifted equals\nnumber of bits in the operand. This behaviour is undefined.\n\nSet num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the\ncount is >= number of bits in the operand.\n\nBug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472"}], "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/amdkfd/kfd_device_queue_manager.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "0c0356ef2498c1a250fe3846f30293f828737309", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1874b0ef1426b873de94c61861e38f29a8df714c", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "3fdc5182700910a685d23df57d65166e8556a266", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "9069b1b542de8f3bbffef868aff41521b21485cf", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "50e2fc36e72d4ad672032ebf646cecb48656efe0", "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/amdkfd/kfd_device_queue_manager.c"], "versions": [{"version": "5.4.118", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.36", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.20", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.3", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.118"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.11.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.12.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309"}, {"url": "https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c"}, {"url": "https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266"}, {"url": "https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf"}, {"url": "https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0"}], "title": "drm/amdkfd: Fix UBSAN shift-out-of-bounds warning", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix UBSAN shift-out-of-bounds warning\n\nIf get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up\ndoing a shift operation where the number of bits shifted equals\nnumber of bits in the operand. This behaviour is undefined.\n\nSet num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the\ncount is >= number of bits in the operand.\n\nBug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472"}], "id": "CVE-2021-4460", "lastModified": "2025-10-01T12:15:31.850", "metrics": {}, "published": "2025-10-01T12:15:31.850", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning", "id": "2400732", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400732"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2021-4460", "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": "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": "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"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-4460\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-4460\nhttps://lore.kernel.org/linux-cve-announce/2025100114-CVE-2021-4460-aa71@gregkh/T"], "threat_severity": "Moderate"}

{}