Bug 2348041 (CVE-2022-49202)

Summary: CVE-2022-49202 kernel: Bluetooth: hci_uart: add missing NULL check in h5_enqueue
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:15:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_uart: add missing NULL check in h5_enqueue

Syzbot hit general protection fault in __pm_runtime_resume(). The problem
was in missing NULL check.

hu->serdev can be NULL and we should not blindly pass &serdev->dev
somewhere, since it will cause GPF.
Comment 3 Avinash Hanwate 2025-02-27 21:00:28 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022618-CVE-2022-49202-070c@gregkh/T