wifi: mt76: mt7921s: fix potential hung tasks during chip recovery
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html