Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c2b27ef672992a206e5b221b8676972dd840ffa5 before d186c65599bff0222da37b9215784ddfe39f9e1b; affected c2b27ef672992a206e5b221b8676972dd840ffa5 before b271090eea3899399e2adcf79c9c95367d472b03; affected c2b27ef672992a206e5b221b8676972dd840ffa5 before df1b53bc799d58f79701c465505a206c72ad4ab8; affected c2b27ef672992a206e5b221b8676972dd840ffa5 before b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c; affected c2b27ef672992a206e5b221b8676972dd840ffa5 before 98e01215708b6d416345465c09dce2bd4868c67a |
| Linux / Linux | affected 2.6.33; unaffected 0 before 2.6.33; unaffected 5.4.213 through 5.4.*; unaffected 5.10.142 through 5.10.*; unaffected 5.15.66 through 5.15.*; unaffected 5.19.8 through 5.19.*; unaffected 6.0 through * |
CWE
No CWE identifiers supplied.
References
- 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