{"id":"CVE-2026-74372","state":"PUBLISHED","title":"raid1: fix nr_pending leak in REQ_ATOMIC bad-block error path","description":"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.","publishedAt":"2026-08-15T05:58:52.306Z","updatedAt":"2026-08-17T05:18:07.752Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca","status":"affected","lessThan":"5ac9e793ba2583d72740d929e7858a6c82e22ed5","versionType":"git"},{"version":"f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca","status":"affected","lessThan":"731485617bf862f1289c3f40ed1f800d0475826f","versionType":"git"},{"version":"f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca","status":"affected","lessThan":"909d9dc3b5730c8ed7b764c68bc788342df2a07b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c"]}],"references":["https://git.kernel.org/stable/c/5ac9e793ba2583d72740d929e7858a6c82e22ed5","https://git.kernel.org/stable/c/731485617bf862f1289c3f40ed1f800d0475826f","https://git.kernel.org/stable/c/909d9dc3b5730c8ed7b764c68bc788342df2a07b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74372.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74372","state":"PUBLISHED","datePublished":"2026-08-15T05:58:52.306Z","dateUpdated":"2026-08-17T05:18:07.752Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.889Z"},"containers":{"cna":{"title":"raid1: fix nr_pending leak in REQ_ATOMIC bad-block error path","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca","status":"affected","lessThan":"5ac9e793ba2583d72740d929e7858a6c82e22ed5","versionType":"git"},{"version":"f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca","status":"affected","lessThan":"731485617bf862f1289c3f40ed1f800d0475826f","versionType":"git"},{"version":"f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca","status":"affected","lessThan":"909d9dc3b5730c8ed7b764c68bc788342df2a07b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:18:07.752Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}