CVE-2024-36974

HIGH
Published Jun 18, 2024 Modified May 12, 2026

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called. First call (with valid attributes) sets dev->num_tc to a non zero value. Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen.

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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

References

Advisories & Patches

https://git.kernel.org/stable/c/0bf6cc96612bd396048f57d63f1ad454a846e39c https://git.kernel.org/stable/c/6db4af09987cc5d5f0136bd46148b0e0460dae5b https://git.kernel.org/stable/c/724050ae4b76e4fae05a923cb54101d792cf4404 https://git.kernel.org/stable/c/c37a27a35eadb59286c9092c49c241270c802ae2 https://git.kernel.org/stable/c/c6041e7124464ce7e896ee3f912897ce88a0c4ec https://git.kernel.org/stable/c/d3dde4c217f0c31ab0621912e682b57e677dd923 https://git.kernel.org/stable/c/f921a58ae20852d188f70842431ce6519c4fdc36 https://git.kernel.org/stable/c/0bf6cc96612bd396048f57d63f1ad454a846e39c https://git.kernel.org/stable/c/6db4af09987cc5d5f0136bd46148b0e0460dae5b https://git.kernel.org/stable/c/724050ae4b76e4fae05a923cb54101d792cf4404 https://git.kernel.org/stable/c/c37a27a35eadb59286c9092c49c241270c802ae2 https://git.kernel.org/stable/c/c6041e7124464ce7e896ee3f912897ce88a0c4ec https://git.kernel.org/stable/c/d3dde4c217f0c31ab0621912e682b57e677dd923 https://git.kernel.org/stable/c/f921a58ae20852d188f70842431ce6519c4fdc36

Frequently Asked Questions

What is CVE-2024-36974? +
In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called. First call (with valid attributes) sets dev->num_tc to a non zero value. Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2024-36974? +
CVE-2024-36974 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-36974? +
CVE-2024-36974 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-2024-36974? +
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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