Debian: CVE-2024-42250: linux, linux-6.1 -- security update

Debian: CVE-2024-42250: linux, linux-6.1 -- security update

Severity

5

CVSS

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

Published

08/07/2024

Created

09/03/2024

Added

09/02/2024

Modified

01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: cachefiles: add missing lock protection when polling Add missing lock protection in poll routine when iterating xarray, otherwise: Even with RCU read lock held, only the slot of the radix tree is ensured to be pinned there, while the data structure (e.g. struct cachefiles_req) stored in the slot has no such guarantee.The poll routine will iterate the radix tree and dereference cachefiles_req accordingly.Thus RCU read lock is not adequate in this case and spinlock is needed here.

Solution(s)

• debian-upgrade-linux
• debian-upgrade-linux-6-1

References

• https://attackerkb.com/topics/cve-2024-42250
• CVE - 2024-42250
• DLA-4008-1