CVE-2026-74372

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74372", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.889Z", "datePublished": "2026-08-15T05:58:52.306Z", "dateUpdated": "2026-08-17T05:18:07.752Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:18:07.752Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nraid1: fix nr_pending leak in REQ_ATOMIC bad-block error path\n\nIn raid1_write_request(), each per-mirror loop iteration begins by\nincrementing rdev->nr_pending. If a REQ_ATOMIC write encounters a\nbadblock within the requested range, the code jumps to err_handle\nwithout dropping the reference taken for the current mirror.\n\nerr_handle's cleanup loop will only decrements for k < i and\nr1_bio->bios[k] is non-NULL. The current slot is therefore skipped,\nleaving its nr_pending reference leaked permanently. The reference\nprevents the rdev from ever being removed, since raid1_remove_conf()\nrefuses to remove an rdev with nr_pending > 0.\n\nFix this by calling rdev_dec_pending() before jumping to err_handle."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/raid1.c"], "versions": [{"version": "f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca", "lessThan": "5ac9e793ba2583d72740d929e7858a6c82e22ed5", "status": "affected", "versionType": "git"}, {"version": "f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca", "lessThan": "731485617bf862f1289c3f40ed1f800d0475826f", "status": "affected", "versionType": "git"}, {"version": "f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca", "lessThan": "909d9dc3b5730c8ed7b764c68bc788342df2a07b", "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/raid1.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "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": "6.13", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5ac9e793ba2583d72740d929e7858a6c82e22ed5"}, {"url": "https://git.kernel.org/stable/c/731485617bf862f1289c3f40ed1f800d0475826f"}, {"url": "https://git.kernel.org/stable/c/909d9dc3b5730c8ed7b764c68bc788342df2a07b"}], "title": "raid1: fix nr_pending leak in REQ_ATOMIC bad-block error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/raid1.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5ac9e793ba2583d72740d929e7858a6c82e22ed5", "status": "affected", "version": "f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca", "versionType": "git"}, {"lessThan": "731485617bf862f1289c3f40ed1f800d0475826f", "status": "affected", "version": "f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca", "versionType": "git"}, {"lessThan": "909d9dc3b5730c8ed7b764c68bc788342df2a07b", "status": "affected", "version": "f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/raid1.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "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\nraid1: fix nr_pending leak in REQ_ATOMIC bad-block error path\n\nIn raid1_write_request(), each per-mirror loop iteration begins by\nincrementing rdev->nr_pending. If a REQ_ATOMIC write encounters a\nbadblock within the requested range, the code jumps to err_handle\nwithout dropping the reference taken for the current mirror.\n\nerr_handle's cleanup loop will only decrements for k < i and\nr1_bio->bios[k] is non-NULL. The current slot is therefore skipped,\nleaving its nr_pending reference leaked permanently. The reference\nprevents the rdev from ever being removed, since raid1_remove_conf()\nrefuses to remove an rdev with nr_pending > 0.\n\nFix this by calling rdev_dec_pending() before jumping to err_handle."}], "id": "CVE-2026-74372", "lastModified": "2026-08-17T06:19:32.023", "metrics": {}, "published": "2026-08-15T06:22:38.967", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5ac9e793ba2583d72740d929e7858a6c82e22ed5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/731485617bf862f1289c3f40ed1f800d0475826f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/909d9dc3b5730c8ed7b764c68bc788342df2a07b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: raid1: fix nr_pending leak in REQ_ATOMIC bad-block error path", "id": "2516787", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516787"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nraid1: fix nr_pending leak in REQ_ATOMIC bad-block error path\nIn raid1_write_request(), each per-mirror loop iteration begins by\nincrementing rdev->nr_pending. If a REQ_ATOMIC write encounters a\nbadblock within the requested range, the code jumps to err_handle\nwithout dropping the reference taken for the current mirror.\nerr_handle's cleanup loop will only decrements for k < i and\nr1_bio->bios[k] is non-NULL. The current slot is therefore skipped,\nleaving its nr_pending reference leaked permanently. The reference\nprevents the rdev from ever being removed, since raid1_remove_conf()\nrefuses to remove an rdev with nr_pending > 0.\nFix this by calling rdev_dec_pending() before jumping to err_handle.", "A flaw was found in the Linux kernel's RAID1 subsystem. When a `REQ_ATOMIC` write operation encounters a bad block, a reference to the RAID device (`rdev`) is not properly released. This resource leak prevents the affected RAID device from being removed, potentially leading to a denial of service (DoS) condition where system resources become permanently unavailable."], "name": "CVE-2026-74372", "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": "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": "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-2026-74372\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74372\nhttps://lore.kernel.org/linux-cve-announce/2026081503-CVE-2026-74372-0ee5@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca,5ac9e793ba2583d72740d929e7858a6c82e22ed5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca,731485617bf862f1289c3f40ed1f800d0475826f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca,909d9dc3b5730c8ed7b764c68bc788342df2a07b)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "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": "2026-08-15T16:30:03.972552+00:00", "updated": "2026-08-22T01:30:17.268345+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}