CVE-2026-43308

kernel: btrfs: don't BUG() on unexpected delayed ref type in run_one_delayed_ref()

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 8, 2026

Updated · July 2, 2026

Description

A flaw was found in the Linux kernel's Btrfs filesystem. An unexpected delayed reference type in the run_one_delayed_ref() function could lead to a system crash. This vulnerability could allow a local attacker to cause a denial of service (DoS) by triggering the unexpected reference type.

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-617 · Reachable Assertion