CVE-2024-35819

MEDIUM
Published May 17, 2024 Modified Dec 17, 2025

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/2b3fede8225133671ce837c0d284804aa3bc7a02 https://git.kernel.org/stable/c/32edca2f03a6cc42c650ddc3ad83d086e3f365d1 https://git.kernel.org/stable/c/54d26adf64c04f186098b39dba86b86037084baa https://git.kernel.org/stable/c/9a3ca8292ce9fdcce122706c28c3f07bc857fe5e https://git.kernel.org/stable/c/cd53a8ae5aacb4ecd25088486dea1cd02e74b506 https://git.kernel.org/stable/c/d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14 https://git.kernel.org/stable/c/f39d36b7540cf0088ed7ce2de2794f2aa237f6df https://git.kernel.org/stable/c/fbec4e7fed89b579f2483041fabf9650fb0dd6bc https://git.kernel.org/stable/c/ff50716b7d5b7985979a5b21163cd79fb3d21d59 https://git.kernel.org/stable/c/2b3fede8225133671ce837c0d284804aa3bc7a02 https://git.kernel.org/stable/c/32edca2f03a6cc42c650ddc3ad83d086e3f365d1 https://git.kernel.org/stable/c/54d26adf64c04f186098b39dba86b86037084baa https://git.kernel.org/stable/c/9a3ca8292ce9fdcce122706c28c3f07bc857fe5e https://git.kernel.org/stable/c/cd53a8ae5aacb4ecd25088486dea1cd02e74b506 https://git.kernel.org/stable/c/d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14 https://git.kernel.org/stable/c/f39d36b7540cf0088ed7ce2de2794f2aa237f6df https://git.kernel.org/stable/c/fbec4e7fed89b579f2483041fabf9650fb0dd6bc https://git.kernel.org/stable/c/ff50716b7d5b7985979a5b21163cd79fb3d21d59

Frequently Asked Questions

What is CVE-2024-35819? +
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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-35819? +
CVE-2024-35819 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-35819? +
CVE-2024-35819 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-35819? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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