CVE-2026-53017

kernel: f2fs: fix data loss caused by incorrect use of nat_entry flag

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · June 24, 2026

Updated · June 27, 2026

Description

A flaw was found in the Linux kernel's f2fs filesystem. This vulnerability can lead to data loss when a file synchronization (fsync) operation on a newly created file occurs at the same time as a checkpoint operation. The system incorrectly assumes that a checkpoint has completed, which can result in the loss of newly written file data.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

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