scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74526
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 13:17:57 UTC
Updated2026-08-17 06:19:49 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit mpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths where host I/O may already be blocked. GFP_KERNEL allocations here, both the local kzalloc_obj() and the ones inside kobject_uevent_env() itself, can trigger reclaim that waits on that blocked I/O and deadlock. Use memalloc_noio_save()/restore() to cover the whole call instead of just the local allocation.

Risk And Classification

EPSS: 0.001550000 probability, percentile 0.051970000 (date 2026-08-16)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 df817b19dac7034416d18f14347010b3e9f5cf3d git Not specified
CNA Linux Linux affected ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 ccff8c92571500fcfed21281e33daaf645bf692f git Not specified
CNA Linux Linux affected 7.0 Not specified
CNA Linux Linux unaffected 7.0 semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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