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().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c2b27ef672992a206e5b221b8676972dd840ffa5 to < d186c65599bff0222da37b9215784ddfe39f9e1baffectedc2b27ef672992a206e5b221b8676972dd840ffa5 to < b271090eea3899399e2adcf79c9c95367d472b03affectedc2b27ef672992a206e5b221b8676972dd840ffa5 to < df1b53bc799d58f79701c465505a206c72ad4ab8affectedc2b27ef672992a206e5b221b8676972dd840ffa5 to < b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3caffectedc2b27ef672992a206e5b221b8676972dd840ffa5 to < 98e01215708b6d416345465c09dce2bd4868c67aaffected
Linux Linux
Default version status: affected
2.6.33affected0 to < 2.6.33unaffected5.4.213 to ≤ 5.4.*unaffected5.10.142 to ≤ 5.10.*unaffected5.15.66 to ≤ 5.15.*unaffected5.19.8 to ≤ 5.19.*unaffected6.0 to ≤ *unaffected
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 ↗