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VulnerabilityPublished Updated

CVE-2026-43473: Linux kernel · scsi: mpi3mr: Add NULL checks when resetting request and reply queues

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in fa96392ebebc8fade2b878acb14cce0f71016503 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:04 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch
Available – fixed in fa96392ebebc8fade2b878acb14cce0f71016503, e978a36f332ede78eb4de037b517db16265d420d, 220d7ca70611a73d50ef8e9edac630ed1ececb7c +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < fa96392ebebc8fade2b878acb14cce0f71016503
Fixed in
  • fa96392ebebc8fade2b878acb14cce0f71016503
LinuxLinuxAffected
  • ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < e978a36f332ede78eb4de037b517db16265d420d
Fixed in
  • e978a36f332ede78eb4de037b517db16265d420d
LinuxLinuxAffected
  • ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 220d7ca70611a73d50ef8e9edac630ed1ececb7c
Fixed in
  • 220d7ca70611a73d50ef8e9edac630ed1ececb7c
LinuxLinuxAffected
  • ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 78d3f201f8b609928eade53cf03a52df5415aaf7
Fixed in
  • 78d3f201f8b609928eade53cf03a52df5415aaf7
LinuxLinuxAffected
  • ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 7df0296ad4e9253d12c6dbe7f120044dddc95600
Fixed in
  • 7df0296ad4e9253d12c6dbe7f120044dddc95600
LinuxLinuxAffected
  • ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 7da755e0d02e9ca035065127e108d1fed8950dc8
Fixed in
  • 7da755e0d02e9ca035065127e108d1fed8950dc8

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Add NULL checks when resetting request and reply queues The driver encountered a crash during resource cleanup when the reply and request queues were NULL due to freed memory. This issue occurred when the creation of reply or request queues failed, and the driver freed the memory first, but attempted to mem set the content of the freed memory, leading to a system crash. Add NULL pointer checks for reply and request queues before accessing the reply/request memory during cleanup

References

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