CVE-2024-42250

MEDIUM EPSS 6.1%
Published Aug 7, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 7, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 1

VendorProductVersionRange
linuxlinux_kernel*≥6.8  –  <6.9.10

References 5

  • git.kernel.org https://git.kernel.org/stable/c/6bb6bd3dd6f382dfd36220d4b210a0c77c066651
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8eadcab7f3dd809edbe5ae20533ff843dfea3a07
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97cfd5e20ddc2e33e16ce369626ce76c9a475fd7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cf5bb09e742a9cf6349127e868329a8f69b7a014
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/6bb6bd3dd6f382dfd36220d4b210a0c77c066651
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8eadcab7f3dd809edbe5ae20533ff843dfea3a07
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97cfd5e20ddc2e33e16ce369626ce76c9a475fd7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cf5bb09e742a9cf6349127e868329a8f69b7a014
    Patch