CVE-2026-23356

kernel: drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock()

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · March 25, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's Distributed Replicated Block Device (DRBD) component. A logic error in the drbd_al_begin_io_nonblock() function can lead to a race condition during active resynchronization. This can result in a system crash, causing a Denial of Service (DoS), due to the incorrect handling of activity log references.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-413 · Improper Resource Locking