Oracle Linux: CVE-2024-40977: ELSA-2024-7000: kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-40977: ELSA-2024-7000:kernel security update (IMPORTANT) (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

07/12/2024

Created

11/13/2024

Added

10/16/2024

Modified

01/07/2025

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. A vulnerability was found in the Linux kernel's mt76 driver for the mt7921s chip, where a potential deadlock could occur during chip recovery. This situation arises when the kernel worker reset_work holds a lock while waiting for the stat_worker thread, which is simultaneously waiting for the same lock to be released, which leads to hung tasks and may even result in device reboots.

Solution(s)

• oracle-linux-upgrade-kernel

References

• https://attackerkb.com/topics/cve-2024-40977
• CVE - 2024-40977
• ELSA-2024-7000
• ELSA-2024-8617