{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43309", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.000Z", "datePublished": "2026-05-08T13:11:27.595Z", "dateUpdated": "2026-05-09T04:10:23.875Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-09T04:10:23.875Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd raid: fix hang when stopping arrays with metadata through dm-raid\n\nWhen using device-mapper's dm-raid target, stopping a RAID array can cause\nthe system to hang under specific conditions.\n\nThis occurs when:\n\n- A dm-raid managed device tree is suspended from top to bottom\n (the top-level RAID device is suspended first, followed by its\n underlying metadata and data devices)\n\n- The top-level RAID device is then removed\n\nRemoving the top-level device triggers a hang in the following sequence:\nthe dm-raid destructor calls md_stop(), which tries to flush the\nwrite-intent bitmap by writing to the metadata sub-devices. However, these\ndevices are already suspended, making them unable to complete the write-intent\noperations and causing an indefinite block.\n\nFix:\n\n- Prevent bitmap flushing when md_stop() is called from dm-raid\ndestructor context\n and avoid a quiescing/unquescing cycle which could also cause I/O\n\n- Still allow write-intent bitmap flushing when called from dm-raid\nsuspend context\n\nThis ensures that RAID array teardown can complete successfully even when the\nunderlying devices are in a suspended state.\n\nThis second patch uses md_is_rdwr() to distinguish between suspend and\ndestructor paths as elaborated on above."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/md.c"], "versions": [{"version": "0dd84b319352bb8ba64752d4e45396d8b13e6018", "lessThan": "24783dd06de870d646c25207bae186f78195f912", "status": "affected", "versionType": "git"}, {"version": "0dd84b319352bb8ba64752d4e45396d8b13e6018", "lessThan": "338378dfffbdbb8d37a18f0a0c0358812671f91e", "status": "affected", "versionType": "git"}, {"version": "0dd84b319352bb8ba64752d4e45396d8b13e6018", "lessThan": "cefcb9297fbdb6d94b61787b4f8d84f55b741470", "status": "affected", "versionType": "git"}, {"version": "1678ca35b80a94d474fdc31e2497ce5d7ed52512", "status": "affected", "versionType": "git"}, {"version": "690b5c90fd2d81fd1d2b6110fa36783232f6dce2", "status": "affected", "versionType": "git"}, {"version": "8e7fb19f1a744fd34e982633ced756fee0498ef7", "status": "affected", "versionType": "git"}, {"version": "a5a58fab556bfe618b4c9719eb85712d78c6cb10", "status": "affected", "versionType": "git"}, {"version": "661c01b2181d9413c799127f13143583b69f20fd", "status": "affected", "versionType": "git"}, {"version": "f42a9819ba84bed2e609a4dff56af37063dcabdc", "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/md/md.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.0", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.292"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.257"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/24783dd06de870d646c25207bae186f78195f912"}, {"url": "https://git.kernel.org/stable/c/338378dfffbdbb8d37a18f0a0c0358812671f91e"}, {"url": "https://git.kernel.org/stable/c/cefcb9297fbdb6d94b61787b4f8d84f55b741470"}], "title": "md raid: fix hang when stopping arrays with metadata through dm-raid", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd raid: fix hang when stopping arrays with metadata through dm-raid\n\nWhen using device-mapper's dm-raid target, stopping a RAID array can cause\nthe system to hang under specific conditions.\n\nThis occurs when:\n\n- A dm-raid managed device tree is suspended from top to bottom\n (the top-level RAID device is suspended first, followed by its\n underlying metadata and data devices)\n\n- The top-level RAID device is then removed\n\nRemoving the top-level device triggers a hang in the following sequence:\nthe dm-raid destructor calls md_stop(), which tries to flush the\nwrite-intent bitmap by writing to the metadata sub-devices. However, these\ndevices are already suspended, making them unable to complete the write-intent\noperations and causing an indefinite block.\n\nFix:\n\n- Prevent bitmap flushing when md_stop() is called from dm-raid\ndestructor context\n and avoid a quiescing/unquescing cycle which could also cause I/O\n\n- Still allow write-intent bitmap flushing when called from dm-raid\nsuspend context\n\nThis ensures that RAID array teardown can complete successfully even when the\nunderlying devices are in a suspended state.\n\nThis second patch uses md_is_rdwr() to distinguish between suspend and\ndestructor paths as elaborated on above."}], "id": "CVE-2026-43309", "lastModified": "2026-05-08T14:16:38.250", "metrics": {}, "published": "2026-05-08T14:16:38.250", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24783dd06de870d646c25207bae186f78195f912"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/338378dfffbdbb8d37a18f0a0c0358812671f91e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cefcb9297fbdb6d94b61787b4f8d84f55b741470"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: md raid: fix hang when stopping arrays with metadata through dm-raid", "id": "2468037", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468037"}, "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-833", "details": ["A flaw was found in the Linux kernel's md raid and device-mapper (dm-raid) components. When a local user or system operation attempts to stop a RAID array managed by dm-raid, the system can experience an indefinite hang. This occurs because the `md_stop()` function tries to write to metadata sub-devices that are already suspended, preventing the operation from completing and leading to a Denial of Service (DoS)."], "name": "CVE-2026-43309", "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": "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"}], "public_date": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43309\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43309\nhttps://lore.kernel.org/linux-cve-announce/2026050859-CVE-2026-43309-873c@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,24783dd06de870d646c25207bae186f78195f912)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,338378dfffbdbb8d37a18f0a0c0358812671f91e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,cefcb9297fbdb6d94b61787b4f8d84f55b741470)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.16,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*]"}}], "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": "2026-05-08T15:15:10.794543+00:00", "updated": "2026-05-09T04:30:17.688781+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}