CVE-2024-42094

HIGH
Published Jul 29, 2024 Modified May 12, 2026 CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: net/iucv: Avoid explicit cpumask var allocation on stack For CONFIG_CPUMASK_OFFSTACK=y kernel, explicit allocation of cpumask variable on stack is not recommended since it can cause potential stack overflow. Instead, kernel code should always use *cpumask_var API(s) to allocate cpumask var in config-neutral way, leaving allocation strategy to CONFIG_CPUMASK_OFFSTACK. Use *cpumask_var API(s) to address it.

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CVSS v3.1 Score

7.1
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

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

References

Advisories & Patches

https://git.kernel.org/stable/c/0af718a690acc089aa1bbb95a93df833d864ef53 https://git.kernel.org/stable/c/2b085521be5292016097b5e7ca81b26be3f7098d https://git.kernel.org/stable/c/2d090c7f7be3b26fcb80ac04d08a4a8062b1d959 https://git.kernel.org/stable/c/724e7965af054079242b8d6f7e50ee226730a756 https://git.kernel.org/stable/c/842afb47d84536fc976fece8fb6c54bea711ad1a https://git.kernel.org/stable/c/9dadab0db7d904413ea1cdaa13f127da05c31e71 https://git.kernel.org/stable/c/be4e1304419c99a164b4c0e101c7c2a756b635b9 https://git.kernel.org/stable/c/d85ca8179a54ff8cf1e1f8c3c9e3799831319bae https://git.kernel.org/stable/c/0af718a690acc089aa1bbb95a93df833d864ef53 https://git.kernel.org/stable/c/2b085521be5292016097b5e7ca81b26be3f7098d https://git.kernel.org/stable/c/2d090c7f7be3b26fcb80ac04d08a4a8062b1d959 https://git.kernel.org/stable/c/724e7965af054079242b8d6f7e50ee226730a756 https://git.kernel.org/stable/c/842afb47d84536fc976fece8fb6c54bea711ad1a https://git.kernel.org/stable/c/9dadab0db7d904413ea1cdaa13f127da05c31e71 https://git.kernel.org/stable/c/be4e1304419c99a164b4c0e101c7c2a756b635b9 https://git.kernel.org/stable/c/d85ca8179a54ff8cf1e1f8c3c9e3799831319bae

Frequently Asked Questions

What is CVE-2024-42094? +
In the Linux kernel, the following vulnerability has been resolved: net/iucv: Avoid explicit cpumask var allocation on stack For CONFIG_CPUMASK_OFFSTACK=y kernel, explicit allocation of cpumask variable on stack is not recommended since it can cause potential stack overflow. Instead, kernel code should always use *cpumask_var API(s) to allocate cpumask var in config-neutral way, leaving allocation strategy to CONFIG_CPUMASK_OFFSTACK. Use *cpumask_var API(s) to address it. It has a CVSS v3.1 base score of 7.1 (HIGH).
How severe is CVE-2024-42094? +
CVE-2024-42094 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-42094? +
CVE-2024-42094 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-42094? +
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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