CVE-2026-23465

kernel: btrfs: log new dentries when logging parent dir of a conflicting inode

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 3, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's btrfs filesystem. This vulnerability occurs when the system attempts to log the parent directory of a conflicting inode, failing to properly record new directory entries. Consequently, if a power failure happens after a file system synchronization (fsync) operation, these new directory entries may be lost, leading to data loss or directory corruption.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-821 · Incorrect Synchronization