SB2026082453 - Improper Check or Handling of Exceptional Conditions in Linux kernel core diag driver

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Main Vulnerability Database SB2026082453

SB2026082453 - Improper Check or Handling of Exceptional Conditions in Linux kernel core diag driver

Published: August 24, 2026

Security Bulletin ID SB2026082453
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-74717)

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of error conditions in the mlx5 firmware tracer core dump logic when processing a tracer creation failure. A local user can trigger the vulnerable code path to cause a denial of service.

The issue can lead to an ERR_PTR dereference and kernel panic during core dump handling.


Remediation

Install update from vendor's website.

References