CVE-2024-35819

medium

Description

In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: Use raw spinlock for cgr_lock smp_call_function always runs its callback in hard IRQ context, even on PREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock for cgr_lock to ensure we aren't waiting on a sleeping task. Although this bug has existed for a while, it was not apparent until commit ef2a8d5478b9 ("net: dpaa: Adjust queue depth on rate change") which invokes smp_call_function_single via qman_update_cgr_safe every time a link goes up or down.

References

https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

https://git.kernel.org/stable/c/ff50716b7d5b7985979a5b21163cd79fb3d21d59

https://git.kernel.org/stable/c/fbec4e7fed89b579f2483041fabf9650fb0dd6bc

https://git.kernel.org/stable/c/f39d36b7540cf0088ed7ce2de2794f2aa237f6df

https://git.kernel.org/stable/c/d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14

https://git.kernel.org/stable/c/cd53a8ae5aacb4ecd25088486dea1cd02e74b506

https://git.kernel.org/stable/c/9a3ca8292ce9fdcce122706c28c3f07bc857fe5e

https://git.kernel.org/stable/c/54d26adf64c04f186098b39dba86b86037084baa

https://git.kernel.org/stable/c/32edca2f03a6cc42c650ddc3ad83d086e3f365d1

https://git.kernel.org/stable/c/2b3fede8225133671ce837c0d284804aa3bc7a02

Details

Source: Mitre, NVD

Published: 2024-05-17

Updated: 2024-06-27

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium