Riskcovery

CVE-2026-74526

scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit

State
Published
Severity
Not scored
Published
Aug 15, 2026
Updated
Aug 17, 2026
Reserved
Aug 15, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 to before df817b19dac7034416d18f14347010b3e9f5cf3dAffected
  • ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 to before ccff8c92571500fcfed21281e33daaf645bf692fAffected
LinuxLinux
  • 7.0Affected
  • before 7.0Not affected
  • 7.1.8 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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