CVE record · CVE-2026-89837

f2fs: fix dentry folio leak in find_in_level

No CVSS scoreEPSS 0.0023 · 13th percentile

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:31 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 7ad08a58bf67594057362e45cbddd3e27e53e557 to before d2011b371fcb9247b2ef4ea2d852401a6c82ab88 git affected 7ad08a58bf67594057362e45cbddd3e27e53e557 to before 3b8593f7965fcb22672d98b55ae2e9410ea3d9f7 git affected 7ad08a58bf67594057362e45cbddd3e27e53e557 to before b6c0e77d950bf80ab357e2b4b9667f4389ed417c git affected 7ad08a58bf67594057362e45cbddd3e27e53e557 to before af9cc316d31371824de8d409260a2ab9759dd51c git affected 7ad08a58bf67594057362e45cbddd3e27e53e557 to before aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922 git affected 7ad08a58bf67594057362e45cbddd3e27e53e557 to before 93a3e6a4c9e726a13a935963e8dc43d181db1527 git affected 7ad08a58bf67594057362e45cbddd3e27e53e557 to before cca7d3e30bf30333314e31bc70b9a739f1342167 git Other versions: unaffected
Linux	Linux	affected 5.11 unaffected before 5.11 semver unaffected 5.15.224 to 5.15., inclusive semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.160 to 6.6., inclusive semver unaffected 6.12.112 to 6.12., inclusive 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-2026-89837
CNA: Linux
Tags: Linux kernel
Published: 16 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

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

The Linux kernel f2fs filesystem is affected from version 5.11 until fixed. A dentry folio reference is leaked on an error path in directory lookup, so memory is not released, and the source gives few details on how an attacker would trigger it. Upgrade to kernel 5.15.224 or later, 6.1.191 or later, 6.6.160 or later, or 6.12.112 or later.

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 0.0023, the 13th percentile, on 14 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.