CVE-2026-90278

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90278", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.797Z", "datePublished": "2026-09-17T16:08:09.992Z", "dateUpdated": "2026-10-19T09:00:55.904Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:00:55.904Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: wait for behind writes before destroying bitmap\n\n__md_stop() destroyed the bitmap before calling mddev_detach(). That made\nmddev_detach() skip bitmap_ops->wait_behind_writes(), because the bitmap\nwas already disconnected from mddev.\n\nThis was still safe for the legacy bitmap because bitmap_destroy() waits\nfor behind writes itself. llbitmap keeps that wait in its\n->wait_behind_writes() operation instead, while ->destroy() tears down the\nllbitmap storage. With the old ordering, RAID1 behind-write completions\ncould still run after llbitmap storage had been freed.\n\nCall mddev_detach() before md_bitmap_destroy() so the common detach path\ncan wait for behind writes while the bitmap is still alive. Only destroy\nthe bitmap after those users are gone."}], "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": "5ab829f1971dc99f2aac10846c378e67fc875abc", "lessThan": "73881ff7a75913f919a1ce9d9571bfaab8e8588d", "status": "affected", "versionType": "git"}, {"version": "5ab829f1971dc99f2aac10846c378e67fc875abc", "lessThan": "4224dccd325a9380e8edfb66aad8bb5771c94222", "status": "affected", "versionType": "git"}, {"version": "5ab829f1971dc99f2aac10846c378e67fc875abc", "lessThan": "2a79365b2278f16e163e4024086105693b421601", "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": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "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": "6.18", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/73881ff7a75913f919a1ce9d9571bfaab8e8588d"}, {"url": "https://git.kernel.org/stable/c/4224dccd325a9380e8edfb66aad8bb5771c94222"}, {"url": "https://git.kernel.org/stable/c/2a79365b2278f16e163e4024086105693b421601"}], "title": "md: wait for behind writes before destroying bitmap", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/md.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "73881ff7a75913f919a1ce9d9571bfaab8e8588d", "status": "affected", "version": "5ab829f1971dc99f2aac10846c378e67fc875abc", "versionType": "git"}, {"lessThan": "4224dccd325a9380e8edfb66aad8bb5771c94222", "status": "affected", "version": "5ab829f1971dc99f2aac10846c378e67fc875abc", "versionType": "git"}, {"lessThan": "2a79365b2278f16e163e4024086105693b421601", "status": "affected", "version": "5ab829f1971dc99f2aac10846c378e67fc875abc", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/md.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "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\nmd: wait for behind writes before destroying bitmap\n\n__md_stop() destroyed the bitmap before calling mddev_detach(). That made\nmddev_detach() skip bitmap_ops->wait_behind_writes(), because the bitmap\nwas already disconnected from mddev.\n\nThis was still safe for the legacy bitmap because bitmap_destroy() waits\nfor behind writes itself. llbitmap keeps that wait in its\n->wait_behind_writes() operation instead, while ->destroy() tears down the\nllbitmap storage. With the old ordering, RAID1 behind-write completions\ncould still run after llbitmap storage had been freed.\n\nCall mddev_detach() before md_bitmap_destroy() so the common detach path\ncan wait for behind writes while the bitmap is still alive. Only destroy\nthe bitmap after those users are gone."}], "id": "CVE-2026-90278", "lastModified": "2026-10-19T09:19:21.343", "metrics": {}, "published": "2026-09-17T17:17:24.460", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a79365b2278f16e163e4024086105693b421601"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4224dccd325a9380e8edfb66aad8bb5771c94222"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/73881ff7a75913f919a1ce9d9571bfaab8e8588d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5ab829f1971dc99f2aac10846c378e67fc875abc,73881ff7a75913f919a1ce9d9571bfaab8e8588d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5ab829f1971dc99f2aac10846c378e67fc875abc,4224dccd325a9380e8edfb66aad8bb5771c94222)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5ab829f1971dc99f2aac10846c378e67fc875abc,2a79365b2278f16e163e4024086105693b421601)"}}], "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": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-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": "2026-09-19T04:30:16.707869+00:00", "updated": "2026-09-19T05:00:08.949501+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}