CVE-2022-49369: amt: fix possible memory leak in amt_rcv()

Severity: medium (CVSS 5.5 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: 2025-02-26 · updated 2026-06-17
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: amt: fix possible memory leak in amt_rcv() If an amt receives packets and it finds socket. If it can't find a socket, it should free a received skb. But it doesn't. So, a memory leak would possibly occur.

Affected products

Linux kernel: from 5.16 before 5.17.15; from 5.18 before 5.18.4 — fixed in 5.17.15, 5.18.4

How to fix

Upgrade to a fixed version: Linux kernel 5.17.15, 5.18.4. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/1a1a0e80e005cbdc2c250fc858e1d8570f4e4acb
https://git.kernel.org/stable/c/4b8032d39b276c52db57ff834c300405b9da2691
https://git.kernel.org/stable/c/60d9c020c69977e138727b3577bc6a0458325e9c

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