CVE-2024-40977

Published: July 16, 2024Last modified: July 16, 2024

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.

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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