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().
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= c2b27ef672992a206e5b221b8676972dd840ffa5, < d186c65599bff0222da37b9215784ddfe39f9e1b; >= c2b27ef672992a206e5b221b8676972dd840ffa5, < b271090eea3899399e2adcf79c9c95367d472b03; >= c2b27ef672992a206e5b221b8676972dd840ffa5, < df1b53bc799d58f79701c465505a206c72ad4ab8; >= c2b27ef672992a206e5b221b8676972dd840ffa5, < b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c; >= c2b27ef672992a206e5b221b8676972dd840ffa5, < 98e01215708b6d416345465c09dce2bd4868c67a |
| Linux | Linux | 2.6.33 |
References
- https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67aPatch
- https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03Patch
- https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3cPatch
- https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1bPatch
- https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8Patch
Timeline
- Published
- Jun 18, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed