CVE-2026-74526
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 < df817b19dac7034416d18f14347010b3e9f5cf3d | affected |
| Linux | Linux | ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 < ccff8c92571500fcfed21281e33daaf645bf692f | affected |
| Linux | Linux | 7.0 | affected |
| Linux | Linux | 0 < 7.0 | unaffected |
| Linux | Linux | 7.1.8 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc6 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d
- https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f
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