PT-2025-30879 · Linux+5 · Linux Kernel+5
Published
2025-01-01
·
Updated
2026-05-26
·
CVE-2025-38465
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw in its netlink implementation related to memory allocation tracking. Specifically, the
sk->sk rmem alloc variable can experience wraparounds, potentially leading to excessive memory consumption and ultimately, an out-of-memory (OOM) condition. This occurs when a large receive buffer size (SO RCVBUFFORCE) is set, causing the comparison in the memory allocation check to be inaccurate due to integer overflow. The issue arises from the use of signed integers in the atomic addition operation, allowing a single socket to allocate an excessive number of skb structures.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Memory Leak
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Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu