CVE-2026-46262
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.
Affected versions
Linux kernel versions
5.15.201,
6.1.164,
6.6.127,
6.12.74,
6.18.13,
6.19
and later are affected. Fixed in
5.15.202,
6.1.165,
6.6.128,
6.12.75,
6.18.14,
6.19.4,
7.0
and their respective stable series.
References
The following references provide additional information about CVE-2026-46262 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0886dc6326c3cc596799c4340d342898301cf52a
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PatchKernel patch commithttps://git.kernel.org/stable/c/29b2fbe3498da3681a01b34e4a2259f8a1b89448
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PatchKernel patch commithttps://git.kernel.org/stable/c/30ffcad5edb56947dccc26f6816ab7a55b21a711
Frequently asked questions
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What is CVE-2026-46262?
CVE-2026-46262 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15.201 onward and has been patched in 5.15.202, 6.1.165, 6.6.128 and others. CVE-2026-46262 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-46262?
Yes — CVE-2026-46262 has been patched. Fixed versions include 5.15.202, 6.1.165, 6.6.128 and others. If you are running Linux kernel 5.15.201 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46262 actively exploited?
No — CVE-2026-46262 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.