# CVE-2026-46262: linux: In the Linux kernel, the following vulnerability has been resolved:  ASoC: fsl_xcvr: Revert fix missing lock in fsl_x...

CVE-2026-46262 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-46262, released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-46262
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0009
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 3, 2026

## Description

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

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.170-1 | [DEBIAN-CVE-2026-46262](https://patchblox.com/security/data/fix/linux/debian-cve-2026-46262.md) | Jun 24, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2026-46262](https://patchblox.com/security/data/fix/linux/debian-cve-2026-46262.md) | Jun 24, 2026 |
| Linux | linux Debian 14 | 6.18.14-1 | [DEBIAN-CVE-2026-46262](https://patchblox.com/security/data/fix/linux/debian-cve-2026-46262.md) | Jun 24, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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