CVE-2026-72439

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72439", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.930Z", "datePublished": "2026-08-15T05:56:52.023Z", "dateUpdated": "2026-10-30T12:29:24.199Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:29:24.199Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix writes_pending leak on write request failures\n\nraid10_make_request() acquires a writes_pending reference with\nmd_write_start() before dispatching write requests. Several failure\npaths in raid10_write_request() complete the bio and return without\nreaching the normal write completion path, causing the corresponding\nmd_write_end() to be skipped.\n\nMake raid10_write_request() return a status indicating whether the write\nrequest was successfully queued. This allows raid10_make_request() to\nrelease the writes_pending reference with md_write_end() when a write\nrequest fails."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/raid10.c"], "versions": [{"version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "lessThan": "55dc3d1d6a9983867273d3531e3ddd743428db8d", "status": "affected", "versionType": "git"}, {"version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "lessThan": "f076460c5205c9687059e5a3afeed37d2f2ceb6b", "status": "affected", "versionType": "git"}, {"version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "lessThan": "b6667d925c274910423385042edf18f6788dbceb", "status": "affected", "versionType": "git"}, {"version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "lessThan": "c642583adc136d4c70ce3c65c3f43e847d26c776", "status": "affected", "versionType": "git"}, {"version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "lessThan": "f94031c94eaebe14a7c9e91720064de0c5a54a6c", "status": "affected", "versionType": "git"}, {"version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "lessThan": "e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d", "status": "affected", "versionType": "git"}, {"version": "39db562b3fedb93978a7e42dd216b306740959f8", "status": "affected", "versionType": "git"}, {"version": "5.15.111", "lessThan": "5.16", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/raid10.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "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": "5.17", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.111"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/55dc3d1d6a9983867273d3531e3ddd743428db8d"}, {"url": "https://git.kernel.org/stable/c/f076460c5205c9687059e5a3afeed37d2f2ceb6b"}, {"url": "https://git.kernel.org/stable/c/b6667d925c274910423385042edf18f6788dbceb"}, {"url": "https://git.kernel.org/stable/c/c642583adc136d4c70ce3c65c3f43e847d26c776"}, {"url": "https://git.kernel.org/stable/c/f94031c94eaebe14a7c9e91720064de0c5a54a6c"}, {"url": "https://git.kernel.org/stable/c/e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d"}], "title": "md/raid10: fix writes_pending leak on write request failures", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/raid10.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "55dc3d1d6a9983867273d3531e3ddd743428db8d", "status": "affected", "version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "versionType": "git"}, {"lessThan": "f076460c5205c9687059e5a3afeed37d2f2ceb6b", "status": "affected", "version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "versionType": "git"}, {"lessThan": "b6667d925c274910423385042edf18f6788dbceb", "status": "affected", "version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "versionType": "git"}, {"lessThan": "c642583adc136d4c70ce3c65c3f43e847d26c776", "status": "affected", "version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "versionType": "git"}, {"lessThan": "f94031c94eaebe14a7c9e91720064de0c5a54a6c", "status": "affected", "version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "versionType": "git"}, {"lessThan": "e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d", "status": "affected", "version": "c9aa889b035fca4598ae985a0f0c76ebbb547ad2", "versionType": "git"}, {"status": "affected", "version": "39db562b3fedb93978a7e42dd216b306740959f8", "versionType": "git"}, {"lessThan": "5.16", "status": "affected", "version": "5.15.111", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/raid10.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.17"}, {"lessThan": "5.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "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\nmd/raid10: fix writes_pending leak on write request failures\n\nraid10_make_request() acquires a writes_pending reference with\nmd_write_start() before dispatching write requests. Several failure\npaths in raid10_write_request() complete the bio and return without\nreaching the normal write completion path, causing the corresponding\nmd_write_end() to be skipped.\n\nMake raid10_write_request() return a status indicating whether the write\nrequest was successfully queued. This allows raid10_make_request() to\nrelease the writes_pending reference with md_write_end() when a write\nrequest fails."}], "id": "CVE-2026-72439", "lastModified": "2026-10-30T13:19:52.357", "metrics": {}, "published": "2026-08-15T06:22:17.753", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/55dc3d1d6a9983867273d3531e3ddd743428db8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6667d925c274910423385042edf18f6788dbceb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c642583adc136d4c70ce3c65c3f43e847d26c776"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f076460c5205c9687059e5a3afeed37d2f2ceb6b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f94031c94eaebe14a7c9e91720064de0c5a54a6c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: md/raid10: fix writes_pending leak on write request failures", "id": "2516472", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516472"}, "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-911", "details": ["A flaw was found in the Linux kernel's md/raid10 component. When write requests fail, the raid10_write_request() function may not properly release a writes_pending reference. This resource leak can accumulate over time, potentially leading to a denial of service (DoS) condition where the system becomes unresponsive or crashes."], "name": "CVE-2026-72439", "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": "Out of support scope", "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": "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72439\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72439\nhttps://lore.kernel.org/linux-cve-announce/2026081529-CVE-2026-72439-99a9@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c9aa889b035fca4598ae985a0f0c76ebbb547ad2,f94031c94eaebe14a7c9e91720064de0c5a54a6c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c9aa889b035fca4598ae985a0f0c76ebbb547ad2,e045d6ed33f8faa3e3dd6dc33c62ec01e3ad275d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "39db562b3fedb93978a7e42dd216b306740959f8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.15.111,5.16)"}}], "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": "semver", "value": "5.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc1,*]"}}], "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": "2026-08-15T12:00:05.302706+00:00", "title": "RAID\u201110 writes_pending reference leak on write failures", "updated": "2026-08-22T06:30:04.527715+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}