CVE record · CVE-2026-92520

bpf: Zero queue and stack outputs on lock failure

No CVSS scoreEPSS 0.0018 · 7th percentile

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected e388671635acf470f0986d874389148fd234620b to before 6468e8ac026b44ae2a78114b80f9d1b9164d0f6c git affected a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8 to before a6090eeb289c5fa45f7b629befac2bd3c19a6dae git affected a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8 to before 23b4bcc79bab5285275912b94e98c286f281de75 git affected a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8 to before 1534c4bff3aaca19c4c9a82f93e9b81f7c983de3 git affected a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8 to before e2396b8a562073787e627a5f483f1bc5c452fa6a git affected a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8 to before 7ac6e1ae41a09f1dd4baeeff1d028ae49ee01232 git affected 40e34ea01748e5b8afdd40a172868be1e1ab0ede git affected 388c9d3eefaea99828ee5000c693128a5b41ee7c git affected acabf5df49aa3a4f9c96200102d893351b511a88 git affected 232f0ba4d69263af5912e279fcc32fef2882b1dc git affected 6.1.56 to before 6.1.191 semver affected 5.4.258 to before 5.5 semver and 3 more Other versions: unaffected
Linux	Linux	affected 6.6 unaffected before 6.6 semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.160 to 6.6., inclusive semver unaffected 6.12.114 to 6.12., inclusive semver unaffected 6.18.52 to 6.18., inclusive semver unaffected 7.2.6 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-92520
CNA: Linux
Tags: Linux kernel
Published: 17 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

In the Linux kernel from 6.6, the BPF queue and stack pop and peek helpers return -EBUSY on a failed lock without clearing their output buffer. A BPF program calling these helpers can read uninitialized stack contents. Upgrade to 6.1.191, 6.6.160, 6.12.114, 6.18.52, or a later release in those series.

Written 12 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0018, the 7th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.