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.

CVSS 3.1

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

EPSS

0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-25)

Published

2024-06-18

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• 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

Check your stackJSON