Debian: CVE-2024-36974: linux -- security update

Debian: CVE-2024-36974: linux -- security update

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

06/18/2024

Created

07/17/2024

Added

07/17/2024

Modified

07/17/2024

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.

Solution(s)

• debian-upgrade-linux

References

• https://attackerkb.com/topics/cve-2024-36974
• CVE - 2024-36974
• DSA-5730-1