CVE-2023-32269

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-05 · updated 2026-06-17
Weakness: CWE-416

Description

An issue was discovered in the Linux kernel before 6.1.11. In net/netrom/af_netrom.c, there is a use-after-free because accept is also allowed for a successfully connected AF_NETROM socket. However, in order for an attacker to exploit this, the system must have netrom routing configured or the attacker must have the CAP_NET_ADMIN capability.

Affected products

Linux kernel: before 6.1.11 — fixed in 6.1.11

How to fix

Upgrade to a fixed version: Linux kernel 6.1.11. Check the vendor advisory for mitigations.

References

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.11
https://github.com/torvalds/linux/commit/611792920925fb088ddccbe2783c7f92fdfb6b64
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.11
https://github.com/torvalds/linux/commit/611792920925fb088ddccbe2783c7f92fdfb6b64

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