CVE-2026-98445

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98445", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.349Z", "datePublished": "2026-10-18T15:14:55.754Z", "dateUpdated": "2026-10-19T09:19:40.826Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:19:40.826Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't let memory failures leak blocks and kill repairs\n\nLOLLM complains that a memory allocation failure in\nxrep_newbt_add_blocks results in online repair leaking blocks that were\npreviously allocated to write a new btree, but the problem is worse than\nthat -- a limitation of the codebase is that the callers cannot undo the\ntransaction /and/ return the error -- either you undo all changes and\ncommit the transaction, or you error out and the filesystem goes down.\n\nHowever, the new btree space reservation object isn't that big (~48\nbytes). Let's just do a NOFAIL allocation and the problem goes away."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/scrub/newbt.c"], "versions": [{"version": "be408417630427984a1fddd069f30b245793234c", "lessThan": "3380151cf0ce8ad0c1d356fed51e4b69e1d28e50", "status": "affected", "versionType": "git"}, {"version": "be408417630427984a1fddd069f30b245793234c", "lessThan": "b15c79fca28060fd9c7e77f2c3ebc4ba023974e8", "status": "affected", "versionType": "git"}, {"version": "be408417630427984a1fddd069f30b245793234c", "lessThan": "0e0d3372a84029da1768c7a4c4601484af5b58a2", "status": "affected", "versionType": "git"}, {"version": "be408417630427984a1fddd069f30b245793234c", "lessThan": "ab1c416d2377cdc16123ef521aac4da1c468c3d4", "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/newbt.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "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": "6.8", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3380151cf0ce8ad0c1d356fed51e4b69e1d28e50"}, {"url": "https://git.kernel.org/stable/c/b15c79fca28060fd9c7e77f2c3ebc4ba023974e8"}, {"url": "https://git.kernel.org/stable/c/0e0d3372a84029da1768c7a4c4601484af5b58a2"}, {"url": "https://git.kernel.org/stable/c/ab1c416d2377cdc16123ef521aac4da1c468c3d4"}], "title": "xfs: don't let memory failures leak blocks and kill repairs", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/xfs/scrub/newbt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3380151cf0ce8ad0c1d356fed51e4b69e1d28e50", "status": "affected", "version": "be408417630427984a1fddd069f30b245793234c", "versionType": "git"}, {"lessThan": "b15c79fca28060fd9c7e77f2c3ebc4ba023974e8", "status": "affected", "version": "be408417630427984a1fddd069f30b245793234c", "versionType": "git"}, {"lessThan": "0e0d3372a84029da1768c7a4c4601484af5b58a2", "status": "affected", "version": "be408417630427984a1fddd069f30b245793234c", "versionType": "git"}, {"lessThan": "ab1c416d2377cdc16123ef521aac4da1c468c3d4", "status": "affected", "version": "be408417630427984a1fddd069f30b245793234c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/xfs/scrub/newbt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "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 let memory failures leak blocks and kill repairs\n\nLOLLM complains that a memory allocation failure in\nxrep_newbt_add_blocks results in online repair leaking blocks that were\npreviously allocated to write a new btree, but the problem is worse than\nthat -- a limitation of the codebase is that the callers cannot undo the\ntransaction /and/ return the error -- either you undo all changes and\ncommit the transaction, or you error out and the filesystem goes down.\n\nHowever, the new btree space reservation object isn't that big (~48\nbytes). Let's just do a NOFAIL allocation and the problem goes away."}], "id": "CVE-2026-98445", "lastModified": "2026-10-19T10:18:53.613", "metrics": {}, "published": "2026-10-18T16:16:54.837", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e0d3372a84029da1768c7a4c4601484af5b58a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3380151cf0ce8ad0c1d356fed51e4b69e1d28e50"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab1c416d2377cdc16123ef521aac4da1c468c3d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b15c79fca28060fd9c7e77f2c3ebc4ba023974e8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: xfs: don't let memory failures leak blocks and kill repairs", "id": "2554877", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2554877"}, "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-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nxfs: don't let memory failures leak blocks and kill repairs\nLOLLM complains that a memory allocation failure in\nxrep_newbt_add_blocks results in online repair leaking blocks that were\npreviously allocated to write a new btree, but the problem is worse than\nthat -- a limitation of the codebase is that the callers cannot undo the\ntransaction /and/ return the error -- either you undo all changes and\ncommit the transaction, or you error out and the filesystem goes down.\nHowever, the new btree space reservation object isn't that big (~48\nbytes). Let's just do a NOFAIL allocation and the problem goes away.", "A flaw was found in the Linux kernel's XFS file system. A local user could cause a Denial of Service (DoS) by triggering an online file system repair under low-memory conditions. When a memory allocation failure occurs during repair block reservation, the kernel cannot cleanly recover from the error, resulting in storage block leaks and an unexpected file system shutdown."], "name": "CVE-2026-98445", "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": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "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": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98445\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98445\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98445.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[be408417630427984a1fddd069f30b245793234c,3380151cf0ce8ad0c1d356fed51e4b69e1d28e50)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[be408417630427984a1fddd069f30b245793234c,b15c79fca28060fd9c7e77f2c3ebc4ba023974e8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[be408417630427984a1fddd069f30b245793234c,0e0d3372a84029da1768c7a4c4601484af5b58a2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[be408417630427984a1fddd069f30b245793234c,ab1c416d2377cdc16123ef521aac4da1c468c3d4)"}}], "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": "6.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.113,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.56,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.9,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc5,*]"}}], "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": "2026-10-18T17:15:14.548511+00:00", "updated": "2026-10-20T12:45:15.240059+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}