Bug 2373643 (CVE-2022-49974)

Summary: CVE-2022-49974 kernel: HID: nintendo: fix rumble worker null pointer deref
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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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 2025-06-18 12:11:57 UTC 
In the Linux kernel, the following vulnerability has been resolved:

HID: nintendo: fix rumble worker null pointer deref

We can dereference a null pointer trying to queue work to a destroyed
workqueue.

If the device is disconnected, nintendo_hid_remove is called, in which
the rumble_queue is destroyed. Avoid using that queue to defer rumble
work once the controller state is set to JOYCON_CTLR_STATE_REMOVED.

This eliminates the null pointer dereference.
Comment 1 Avinash Hanwate 2025-06-18 23:02:57 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061818-CVE-2022-49974-86bb@gregkh/T