SB2026110314 - Use-after-free in Linux kernel trace

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Main Vulnerability Database SB2026110314

SB2026110314 - Use-after-free in Linux kernel trace

Published: November 3, 2026

Security Bulletin ID SB2026110314
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2026-99235)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service and potentially execute arbitrary code in kernel context or disclose sensitive kernel information.

The vulnerability exists due to use-after-free in the Linux kernel tracing histogram implementation when removing histogram triggers. A local user can remove a compatible histogram while a target histogram still retains a pointer to it, then remove the target to trigger a dereference of freed memory, causing a kernel crash and potentially enabling arbitrary code execution or sensitive information disclosure.


Remediation

Install update from vendor's website.

References