CVE-2024-26671

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

02/04/2024

Last modified:

17/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix IO hang from sbitmap wakeup race In blk_mq_mark_tag_wait(), __add_wait_queue() may be re-ordered with the following blk_mq_get_driver_tag() in case of getting driver tag failure. Then in __sbitmap_queue_wake_up(), waitqueue_active() may not observe the added waiter in blk_mq_mark_tag_wait() and wake up nothing, meantime blk_mq_mark_tag_wait() can&#39;t get driver tag successfully. This issue can be reproduced by running the following test in loop, and fio hang can be observed in

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

4.70

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.19.307 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.269 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.210 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.149 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.77 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.7.4 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-26671

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools