CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
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.
git.kernel.org/stable/c/6bb6bd3dd6f382dfd36220d4b210a0c77c066651
git.kernel.org/stable/c/8eadcab7f3dd809edbe5ae20533ff843dfea3a07
git.kernel.org/stable/c/97cfd5e20ddc2e33e16ce369626ce76c9a475fd7
git.kernel.org/stable/c/cf5bb09e742a9cf6349127e868329a8f69b7a014
security-tracker.debian.org/tracker/CVE-2024-42250