CVE-2014-3144

Original summary

Normalized public record · Updated Nov 3, 2026

The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.

Publisher and source text is retained separately from QFinch interpretation.

Affected products

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

1. Confirm the affected product and reachable code path exist in your environment.
2. Apply the vendor-supported patch or mitigation from the primary advisory.
3. Rescan the exact deployed revision and retain verification evidence.

Evidence coverage

SSVC priority

LOW

Confidence

Not available

Aliases

None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

1. [oss-security] 20140509 Re: CVE request Linux kernel: filter: prevent nla extensions to peek beyond the end of the message ↗
2. USN-2263-1 ↗
3. DSA-2949 ↗
4. USN-2261-1 ↗
5. USN-2252-1 ↗
6. linux.oracle.com ↗
7. 58990 ↗
8. 60613 ↗
9. USN-2264-1 ↗
10. Patch commit ↗
11. 67309 ↗
12. git.kernel.org ↗

Record history

Published May 11, 2014 · Last refreshed Nov 3, 2026