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CVE-2026-74526 (GCVE-0-2026-74526)

Vulnerability from cvelistv5 – Published: 2026-08-15 12:27 – Updated: 2026-08-17 05:21
VLAI
Title
scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 , < df817b19dac7034416d18f14347010b3e9f5cf3d (git)
Affected: ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 , < ccff8c92571500fcfed21281e33daaf645bf692f (git)
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Linux Linux Affected: 7.0
Unaffected: 0 , < 7.0 (semver)
Unaffected: 7.1.8 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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    "cveId": "CVE-2026-74526",
    "datePublished": "2026-08-15T12:27:42.965Z",
    "dateReserved": "2026-08-15T05:44:03.911Z",
    "dateUpdated": "2026-08-17T05:21:09.281Z",
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    "redhat_vex": {
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      "product_status:known_affected": "184",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74526.json",
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