Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-50081

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
29/10/2024
Last modified:
11/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> blk-mq: setup queue -&gt;tag_set before initializing hctx<br /> <br /> Commit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx")<br /> needs to check queue mapping via tag set in hctx&amp;#39;s cpuhp handler.<br /> <br /> However, q-&gt;tag_set may not be setup yet when the cpuhp handler is<br /> enabled, then kernel oops is triggered.<br /> <br /> Fix the issue by setup queue tag_set before initializing hctx.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.10 (including) 6.11.5 (excluding)
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools