{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80533", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.764Z", "datePublished": "2026-08-26T14:37:09.785Z", "dateUpdated": "2026-08-26T14:37:09.785Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-26T14:37:09.785Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair\n\nLOLLM noticed a longstanding bug where xrep_iunlink_walk_ondisk_bucket\ntries to walk ragi->sc->sa.agi_bp to rebuild the unlinked inode lists.\nUnfortunately, it's possible for agi_bp to be null if the buffer\nverifier fails, so we have to use ragi->agi_bp (which skips verifier\nchecks) instead."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/scrub/agheader_repair.c"], "versions": [{"version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "43b4ecbc948a2e441804c9d7b772deb6b2e44e3d", "status": "affected", "versionType": "git"}, {"version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03", "status": "affected", "versionType": "git"}, {"version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081", "status": "affected", "versionType": "git"}, {"version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "lessThan": "1e96a00e0d3a00be6e4f368b2f18e2d345f813ce", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/scrub/agheader_repair.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.105", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "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": "6.10", "versionEndExcluding": "6.12.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/43b4ecbc948a2e441804c9d7b772deb6b2e44e3d"}, {"url": "https://git.kernel.org/stable/c/c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03"}, {"url": "https://git.kernel.org/stable/c/a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081"}, {"url": "https://git.kernel.org/stable/c/1e96a00e0d3a00be6e4f368b2f18e2d345f813ce"}], "title": "xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/xfs/scrub/agheader_repair.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "43b4ecbc948a2e441804c9d7b772deb6b2e44e3d", "status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "versionType": "git"}, {"lessThan": "c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03", "status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "versionType": "git"}, {"lessThan": "a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081", "status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "versionType": "git"}, {"lessThan": "1e96a00e0d3a00be6e4f368b2f18e2d345f813ce", "status": "affected", "version": "ab97f4b1c030750f2475bf4da8a9554d02206640", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/xfs/scrub/agheader_repair.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.105", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.46", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.10", "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\nxfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair\n\nLOLLM noticed a longstanding bug where xrep_iunlink_walk_ondisk_bucket\ntries to walk ragi->sc->sa.agi_bp to rebuild the unlinked inode lists.\nUnfortunately, it's possible for agi_bp to be null if the buffer\nverifier fails, so we have to use ragi->agi_bp (which skips verifier\nchecks) instead."}], "id": "CVE-2026-80533", "lastModified": "2026-08-26T15:17:07.410", "metrics": {}, "published": "2026-08-26T15:17:07.410", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1e96a00e0d3a00be6e4f368b2f18e2d345f813ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/43b4ecbc948a2e441804c9d7b772deb6b2e44e3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6cfd0e4bb1e5f4dd2a67fa99eab36bda47cf081"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c36d7f68f1c2e7e528ad11044a0bd6a3016a6a03"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: xfs: don't walk off the end of a null sc->sa.agi_bp in AGI repair", "id": "2524486", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524486"}, "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-476", "details": ["A flaw was found in the Linux kernel's XFS filesystem. This vulnerability occurs during the Allocation Group Information (AGI) repair process, specifically in the `xrep_iunlink_walk_ondisk_bucket` function. If the buffer verifier fails, a null pointer dereference can occur when attempting to rebuild unlinked inode lists, potentially leading to a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-80533", "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": "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": "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"}], "public_date": "2026-08-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80533\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80533\nhttps://lore.kernel.org/linux-cve-announce/2026082604-CVE-2026-80533-0138@gregkh/T"], "threat_severity": "Low"}