CVE-2026-53368

kernel: f2fs: fix fsck inconsistency caused by incorrect nat_entry flag usage

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Severity

Low

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · July 19, 2026

Updated · October 15, 2026

Description

A flaw was found in the Linux kernel's F2FS (Flash-Friendly File System) component. A race condition exists where the f2fs_need_dentry_mark() function incorrectly reads nat_entry flags without proper synchronization during checkpoint operations. This can lead to an inconsistent inode block marking state, which may be reported by filesystem check utilities (fsck) as an error, potentially impacting data integrity or system stability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition