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CVE-2026-43473

kernel: scsi: mpi3mr: Add NULL checks when resetting request and reply queues

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 8, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's mpi3mr SCSI driver. When the creation of reply or request queues fails, the driver may attempt to access and modify memory that has already been freed during cleanup. This can be exploited by a local user, leading to a system crash and a Denial of Service (DoS).

Statement

Red Hat acknowledges the upstream Linux kernel correction for «scsi» as described in COMMENT_ZERO. Fixes are delivered through standard kernel errata for supported products. Operational exposure depends on whether this subsystem or driver is active in your configuration.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference