In multiple functions of llcp_core.c, there is a possible use after free due to a logic error in the...

:linux_kernel: Updated 07 Sep 2026

Summary

01/09/2026
Yes i
Critical
Not published

CVE-2026-31629: In multiple functions of llcp_core.c, there is a possible use after free due to a logic error in the code. Affects :linux_kernel: versions >= :0, < :2026-09-05. Fixed in :2026-09-05. How to fix ↓

Also tracked for

The same CVE-2026-31629 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Sponsored Devnack Your last release was probably never penetration tested Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

In multiple functions of llcp_core.c, there is a possible use after free due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

How To Fix

Minimum fixed version

:2026-09-05

This is the first release that contains the fix.

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Share this vulnerability

Related vulnerabilities

Recent vulnerabilities recorded for :linux_kernel:.

How To Fix

Minimum fixed version

:2026-09-05

This is the first release that contains the fix.

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback