CVE-2022-49954

Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag

Description

In the Linux kernel, the following vulnerability has been resolved: Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag syzbot is reporting hung task at __input_unregister_device() [1], for iforce_close() waiting at wait_event_interruptible() with dev->mutex held is blocking input_disconnect_device() from __input_unregister_device(). It seems that the cause is simply that commit c2b27ef672992a20 ("Input: iforce - wait for command completion when closing the device") forgot to call wake_up() after clear_bit(). Fix this problem by introducing a helper that calls clear_bit() followed by wake_up_all().

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1b
https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03
https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8
https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c
https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67a

Frequently Asked Questions

What is the severity of CVE-2022-49954?: CVE-2022-49954 has not yet been assigned a CVSS score.
How to fix CVE-2022-49954?: To fix CVE-2022-49954, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49954 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49954 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49954?: CVE-2022-49954 affects Linux Linux, Linux Linux.

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