SB20260727281 - Improper Check or Handling of Exceptional Conditions in Linux kernel module

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Main Vulnerability Database SB20260727281

SB20260727281 - Improper Check or Handling of Exceptional Conditions in Linux kernel module

Published: July 27, 2026

Security Bulletin ID SB20260727281
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-2026-64297)

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 exception handling in module decompression in kernel/module/decompress.c when processing a module for loading. A local user can trigger an allocation failure condition to cause a denial of service.

The issue can lead to a kernel oops due to a dereference of ZERO_SIZE_PTR after a failed allocation.


Remediation

Install update from vendor's website.

References