CVE-2024-26671

kernel: blk-mq: fix IO hang from sbitmap wakeup race

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Severity

Moderate

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · April 2, 2024

Updated · November 1, 2026

Description

A possible IO hang from sbitmap wakeup race was found in the Linux kernel. This may lead to compromised Availability.

Statement

This issue is fixed in RHEL-9.4 and above (including RHEL 8.10)

a7f97b4cae32 (in rhel-9.4, rhel-9.5) blk-mq: fix IO hang from sbitmap wakeup race 
098ab94a5112 (in rhel-8.10) blk-mq: fix IO hang from sbitmap wakeup race

Please note that while RHEL-9 kernel-rt still appears as affected, it has been fixed in the same RHSA as RHEL-9 kernel. This is because from RHEL-9.3 onwards, the kernel and kernel-rt fixes are bundled together in a single errata.

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 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization