Bug 2347946 (CVE-2022-49538)

Summary: CVE-2022-49538 kernel: ALSA: jack: Access input_dev under mutex
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:12:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ALSA: jack: Access input_dev under mutex

It is possible when using ASoC that input_dev is unregistered while
calling snd_jack_report, which causes NULL pointer dereference.
In order to prevent this serialize access to input_dev using mutex lock.
Comment 1 Avinash Hanwate 2025-02-26 19:26:47 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022614-CVE-2022-49538-c7b9@gregkh/T
Comment 4 Avinash Hanwate 2025-02-27 23:15:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022614-CVE-2022-49538-c7b9@gregkh/T