CVE-2026-53319

kernel: blk-wbt: remove WARN_ON_ONCE from wbt_init_enable_default()

Loading…

Severity

Unknown

Red Hat Product Security

—

CVSS

Review impact separately from score.

Published · June 26, 2026

Updated · June 29, 2026

Description

A flaw was found in the Linux kernel's block writeback throttling (blk-wbt) component. The wbt_init_enable_default() function used a warning mechanism (WARN_ON_ONCE) for expected failure paths during memory allocation or if writeback throttling was already registered. This could lead to spurious warnings, but the failure to initialize writeback throttling is harmless and does not impact the disk's operation.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-544 · Missing Standardized Error Handling Mechanism