CVE-2026-93816

f2fs: validate inline dentry name lengths before conversion

CVE-2026-93816 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-93816, released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.1

Important

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0013

2nd percentile

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate inline dentry name lengths before conversion Inline dentry conversion copies names out of the inline dentry area before checking that each recorded name length fits in the available filename slots. A corrupted image can therefore make the conversion path read past the inline filename storage while building the regular dentry block. Validate each inline dentry name length against the inline filename area before copying it.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
linux · Debian 12.15 (bookworm)	6.1.190-1	DEBIAN-CVE-2026-93816	Sep 24, 2026
linux · Debian 13.5 (trixie)	6.12.111-1	DEBIAN-CVE-2026-93816	Sep 24, 2026
linux · Debian 14	7.2.6-1	DEBIAN-CVE-2026-93816	Sep 24, 2026
linux-6.12 · Debian 12.15 (bookworm)	6.12.111-1~deb12u1	DEBIAN-CVE-2026-93816	Sep 24, 2026

Details

Published
September 24, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-93816

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