{"id":"CVE-2026-74526","state":"PUBLISHED","title":"scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit\n\nmpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths\nwhere host I/O may already be blocked. GFP_KERNEL allocations here, both\nthe local kzalloc_obj() and the ones inside kobject_uevent_env() itself,\ncan trigger reclaim that waits on that blocked I/O and deadlock.\n\nUse memalloc_noio_save()/restore() to cover the whole call instead of\njust the local allocation.","publishedAt":"2026-08-15T12:27:42.965Z","updatedAt":"2026-08-17T05:21:09.281Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ec54b348f274fdd2bd32bbe74de6d62ae1a10a18","status":"affected","lessThan":"df817b19dac7034416d18f14347010b3e9f5cf3d","versionType":"git"},{"version":"ec54b348f274fdd2bd32bbe74de6d62ae1a10a18","status":"affected","lessThan":"ccff8c92571500fcfed21281e33daaf645bf692f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/mpi3mr/mpi3mr_fw.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.1.8","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/scsi/mpi3mr/mpi3mr_fw.c"]}],"references":["https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d","https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74526.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74526","state":"PUBLISHED","datePublished":"2026-08-15T12:27:42.965Z","dateUpdated":"2026-08-17T05:21:09.281Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.911Z"},"containers":{"cna":{"title":"scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit\n\nmpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths\nwhere host I/O may already be blocked. GFP_KERNEL allocations here, both\nthe local kzalloc_obj() and the ones inside kobject_uevent_env() itself,\ncan trigger reclaim that waits on that blocked I/O and deadlock.\n\nUse memalloc_noio_save()/restore() to cover the whole call instead of\njust the local allocation."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ec54b348f274fdd2bd32bbe74de6d62ae1a10a18","status":"affected","lessThan":"df817b19dac7034416d18f14347010b3e9f5cf3d","versionType":"git"},{"version":"ec54b348f274fdd2bd32bbe74de6d62ae1a10a18","status":"affected","lessThan":"ccff8c92571500fcfed21281e33daaf645bf692f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/mpi3mr/mpi3mr_fw.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.1.8","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/scsi/mpi3mr/mpi3mr_fw.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d"},{"url":"https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:21:09.281Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}