Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-46262

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/06/2026
Last modified:
09/06/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()<br /> <br /> This reverts commit f51424872760 ("ASoC: fsl_xcvr: fix missing lock in fsl_xcvr_mode_put()").<br /> <br /> The original patch attempted to acquire the card-&gt;controls_rwsem lock in<br /> fsl_xcvr_mode_put(). However, this function is called from the upper ALSA<br /> core function snd_ctl_elem_write(), which already holds the write lock on<br /> controls_rwsem for the whole put operation. So there is no need to simply<br /> hold the lock for fsl_xcvr_activate_ctl() again.<br /> <br /> Acquiring the read lock while holding the write lock in the same thread<br /> results in a deadlock and a hung task, as reported by Alexander Stein.

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:*:*:*:*:*:*:*:* 6.19.1 (including) 6.19.4 (excluding)
cpe:2.3:o:linux:linux_kernel:5.15.201:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1.164:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6.127:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12.74:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.18.13:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools