CVE-2026-43473
kernel: scsi: mpi3mr: Add NULL checks when resetting request and reply queues
Severity
ModerateRed Hat Product Security
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference