CVE-2026-99132

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99132", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.394Z", "datePublished": "2026-10-28T10:34:45.756Z", "dateUpdated": "2026-10-30T12:42:05.352Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:42:05.352Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf\n\nxfs_sync_sb_buf() holds sb/rtsb buffer locks across a synchronous\nxfs_trans_commit(), which flushes the CIL push workqueue internally.\nIf shutdown occurs during the CIL push, xfs_buf_item_unpin() needs to\nlock these buffers to fail them, causing a deadlock:\n\n setlabel: holds buf lock -> flush_workqueue(xfs-cil)\n CIL push worker: xfs_buf_item_unpin -> xfs_buf_lock(same buf)\n\nRemove the xfs_trans_bhold() calls so that commit releases the buffer\nlocks normally. After the sync commit, re-acquire the buffers via\nmp->m_sb_bp / mp->m_rtsb_bp for the on-disk writeback."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/libxfs/xfs_rtgroup.h", "fs/xfs/libxfs/xfs_sb.c"], "versions": [{"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "16468281da17263095bd1906cf2d16a972f10791", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "45f124f3902bfae6a366d124db04f707264176fb", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "d900946853c2d183fa0e199bae9ddbcd21795a18", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "83b2e511cf9ba22904b167e00fcbd85169b50b2c", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "acd7f2f9b822b6e126f3e3c99c173e62aa315b6f", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "e5456dec79c71c8ef8f9f9adb77d320f113b34db", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "6353e5cd8c43d6e805cacbfbfecf4103571a7ff8", "status": "affected", "versionType": "git"}, {"version": "f7664b31975bd893190708e76b2c424328f0c49b", "lessThan": "41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff", "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/libxfs/xfs_rtgroup.h", "fs/xfs/libxfs/xfs_sb.c"], "versions": [{"version": "4.18", "status": "affected"}, {"version": "0", "lessThan": "4.18", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.161", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.115", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.59", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "4.18", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.6.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.12.115"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.18.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/16468281da17263095bd1906cf2d16a972f10791"}, {"url": "https://git.kernel.org/stable/c/45f124f3902bfae6a366d124db04f707264176fb"}, {"url": "https://git.kernel.org/stable/c/d900946853c2d183fa0e199bae9ddbcd21795a18"}, {"url": "https://git.kernel.org/stable/c/83b2e511cf9ba22904b167e00fcbd85169b50b2c"}, {"url": "https://git.kernel.org/stable/c/acd7f2f9b822b6e126f3e3c99c173e62aa315b6f"}, {"url": "https://git.kernel.org/stable/c/e5456dec79c71c8ef8f9f9adb77d320f113b34db"}, {"url": "https://git.kernel.org/stable/c/6353e5cd8c43d6e805cacbfbfecf4103571a7ff8"}, {"url": "https://git.kernel.org/stable/c/41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff"}], "title": "xfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/xfs/libxfs/xfs_rtgroup.h", "fs/xfs/libxfs/xfs_sb.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "16468281da17263095bd1906cf2d16a972f10791", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "45f124f3902bfae6a366d124db04f707264176fb", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "d900946853c2d183fa0e199bae9ddbcd21795a18", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "83b2e511cf9ba22904b167e00fcbd85169b50b2c", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "acd7f2f9b822b6e126f3e3c99c173e62aa315b6f", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "e5456dec79c71c8ef8f9f9adb77d320f113b34db", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "6353e5cd8c43d6e805cacbfbfecf4103571a7ff8", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}, {"lessThan": "41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff", "status": "affected", "version": "f7664b31975bd893190708e76b2c424328f0c49b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/xfs/libxfs/xfs_rtgroup.h", "fs/xfs/libxfs/xfs_sb.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.18"}, {"lessThan": "4.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.161", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.115", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.59", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.13", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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 hold buffer locks across sync transaction commit in xfs_sync_sb_buf\n\nxfs_sync_sb_buf() holds sb/rtsb buffer locks across a synchronous\nxfs_trans_commit(), which flushes the CIL push workqueue internally.\nIf shutdown occurs during the CIL push, xfs_buf_item_unpin() needs to\nlock these buffers to fail them, causing a deadlock:\n\n setlabel: holds buf lock -> flush_workqueue(xfs-cil)\n CIL push worker: xfs_buf_item_unpin -> xfs_buf_lock(same buf)\n\nRemove the xfs_trans_bhold() calls so that commit releases the buffer\nlocks normally. After the sync commit, re-acquire the buffers via\nmp->m_sb_bp / mp->m_rtsb_bp for the on-disk writeback."}], "id": "CVE-2026-99132", "lastModified": "2026-10-30T13:21:47.390", "metrics": {}, "published": "2026-10-28T11:17:33.033", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/16468281da17263095bd1906cf2d16a972f10791"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/45f124f3902bfae6a366d124db04f707264176fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6353e5cd8c43d6e805cacbfbfecf4103571a7ff8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/83b2e511cf9ba22904b167e00fcbd85169b50b2c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/acd7f2f9b822b6e126f3e3c99c173e62aa315b6f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d900946853c2d183fa0e199bae9ddbcd21795a18"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e5456dec79c71c8ef8f9f9adb77d320f113b34db"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: kernel: Denial of Service via deadlock in XFS superblock buffer synchronization", "id": "2562660", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562660"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-833", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nxfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf\nxfs_sync_sb_buf() holds sb/rtsb buffer locks across a synchronous\nxfs_trans_commit(), which flushes the CIL push workqueue internally.\nIf shutdown occurs during the CIL push, xfs_buf_item_unpin() needs to\nlock these buffers to fail them, causing a deadlock:\nsetlabel: holds buf lock -> flush_workqueue(xfs-cil)\nCIL push worker: xfs_buf_item_unpin -> xfs_buf_lock(same buf)\nRemove the xfs_trans_bhold() calls so that commit releases the buffer\nlocks normally. After the sync commit, re-acquire the buffers via\nmp->m_sb_bp / mp->m_rtsb_bp for the on-disk writeback.", "A flaw was found in the Linux kernel's XFS file system. A local attacker could cause a Denial of Service (DoS) by triggering a deadlock during file system metadata synchronization. Under specific conditions, such as a file system shutdown during a synchronous transaction commit, held buffer locks prevent background worker processes from completing cleanup, resulting in a complete system hang."], "name": "CVE-2026-99132", "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": "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:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-28T10:34:45Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99132\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99132\nhttps://git.kernel.org/stable/c/41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff\nhttps://git.kernel.org/stable/c/6353e5cd8c43d6e805cacbfbfecf4103571a7ff8\nhttps://git.kernel.org/stable/c/e5456dec79c71c8ef8f9f9adb77d320f113b34db"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f7664b31975bd893190708e76b2c424328f0c49b,e5456dec79c71c8ef8f9f9adb77d320f113b34db)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f7664b31975bd893190708e76b2c424328f0c49b,6353e5cd8c43d6e805cacbfbfecf4103571a7ff8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f7664b31975bd893190708e76b2c424328f0c49b,41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f7664b31975bd893190708e76b2c424328f0c49b,e5456dec79c71c8ef8f9f9adb77d320f113b34db)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f7664b31975bd893190708e76b2c424328f0c49b,6353e5cd8c43d6e805cacbfbfecf4103571a7ff8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f7664b31975bd893190708e76b2c424328f0c49b,41a28c865d1d5843f8cb9e0af17a8f4d9e2961ff)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"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": "4.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T11:45:09.958939+00:00", "updated": "2026-10-30T05:30:09.658718+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}