TLDRVuln - Cybersecurity Vulnerabilities Made Simple

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: fix deadlock in remain-on-channel

mt76_remain_on_channel() and mt76_roc_complete() call mt76_set_channel()

while already holding dev->mutex. Since mt76_set_channel() also acquires

dev->mutex, this results in a deadlock.

Use __mt76_set_channel() instead of mt76_set_channel().

Add cancel_delayed_work_sync() for mac_work before acquiring the mutex

in mt76_remain_on_channel() to prevent a secondary deadlock with the

mac_work workqueue.