CVE-2025-38514
MEDIUMLinux Kernel - Denial of Service via AF_RXRPC Service Socket Preallocation
Title source: llmDescription
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix oops due to non-existence of prealloc backlog struct If an AF_RXRPC service socket is opened and bound, but calls are preallocated, then rxrpc_alloc_incoming_call() will oops because the rxrpc_backlog struct doesn't get allocated until the first preallocation is made. Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no backlog struct. This will cause the incoming call to be aborted.
References (10)
Core 10
Core References
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Scores
CVSS v3
5.5
EPSS
0.0003
EPSS Percentile
7.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (28)
debian/debian_linux
11.0
linux/Kernel
4.9.0 - 5.4.296linux
linux/Kernel
5.11.0 - 5.15.189linux
linux/Kernel
5.16.0 - 6.1.146linux
linux/Kernel
5.5.0 - 5.10.240linux
linux/Kernel
6.13.0 - 6.15.7linux
linux/Kernel
6.2.0 - 6.6.99linux
linux/Kernel
6.7.0 - 6.12.39linux
Linux/Linux
< 4.9
Linux/Linux
248f219cb8bcbfbd7f132752d44afa2df7c241d1 - 0eef29385d715d4c7fd707b18d4a9b76c76dd5e6
... and 18 more
Published
Aug 16, 2025
Tracked Since
Feb 18, 2026