Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.8, < 6.9.10 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/6bb6bd3dd6f382dfd36220d4b210a0c77c066651Patch
- https://git.kernel.org/stable/c/8eadcab7f3dd809edbe5ae20533ff843dfea3a07Patch
- https://git.kernel.org/stable/c/97cfd5e20ddc2e33e16ce369626ce76c9a475fd7Patch
- https://git.kernel.org/stable/c/cf5bb09e742a9cf6349127e868329a8f69b7a014Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
FAQ
What is CVE-2024-42250?
CVE-2024-42250 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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:...
How severe is CVE-2024-42250?
CVE-2024-42250 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-42250?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.