CVE record · CVE-2026-89991

bpf: Fix infinite loop in pcpu_freelist push with one possible CPU

No CVSS scoreEPSS 0.0021 · 10th percentile

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 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 f2ac0e5d1c4dcc55d6510dcaefb8f45661a9a1fb to before a24a146ae2cb5d9faeea96d10010fcb6579abe1f git affected f2ac0e5d1c4dcc55d6510dcaefb8f45661a9a1fb to before a5b5e62baceff9e252c6535cf42a027d04f226cf git affected f2ac0e5d1c4dcc55d6510dcaefb8f45661a9a1fb to before efebf6496685c93150df5bb0794363ae70c5f58a git Other versions: unaffected
Linux	Linux	affected 6.15 unaffected before 6.15 semver unaffected 6.18.51 to 6.18., inclusive semver unaffected 7.2.5 to 7.2., inclusive semver unaffected 7.3 to *, inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-89991
CNA: Linux
Tags: Linux kernel
Published: 16 Sept 2026
Updated: 19 Oct 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 0.0021, the 10th 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 16 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.