Deadlock Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-553.22.1.rt7.363.el8_10
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGKVM-7512954
- published 17 Jul 2024
- disclosed 12 Jul 2024
Introduced: 12 Jul 2024
CVE-2024-40977 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-debug-kvm to version 0:4.18.0-553.22.1.rt7.363.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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://access.redhat.com/security/cve/CVE-2024-40977
- 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