CVE-2022-49954
In the Linux kernel, the following vulnerability has been resolved: Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag syzbot is reporting hung ta…
Impact
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().
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 2.6.34 before 5.4.213 from 5.5 before 5.10.142 from 5.11 before 5.15.66 from 5.16 before 5.19.8 Versions 2.6.33, 6.0 |
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67a
- https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03
- https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c
- https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1b
- https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8