Vulnerability CVE-2024-40977
Published: 2024-07-12

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

wifi: mt76: mt7921s: fix potential hung tasks during chip recovery

During chip recovery (e.g. chip reset), there is a possible situation that
kernel worker reset_work is holding the lock and waiting for kernel thread
stat_worker to be parked, while stat_worker is waiting for the release of
the same lock.
It causes a deadlock resulting in the dumping of hung tasks messages and
possible rebooting of the device.

This patch prevents the execution of stat_worker during the chip recovery.

 References:
https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08
https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02
https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9
https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366
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