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CVE-2022-49153

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wireguard: socket: free skb in send6 when ipv6 is disabled I got a memory leak report: unreferenced object 0xffff8881191fc040…

Published Feb 26, 2025CWE-401EPSS 0.26%

Overview

CVE-2022-49153 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

wireguard: socket: free skb in send6 when ipv6 is disabled

I got a memory leak report:

unreferenced object 0xffff8881191fc040 (size 232):

comm "kworker/u17:0", pid 23193, jiffies 4295238848 (age 3464.870s)

hex dump (first 32 bytes):

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

backtrace:

[<ffffffff814c3ef4>] slab_post_alloc_hook+0x84/0x3b0

[<ffffffff814c8977>] kmem_cache_alloc_node+0x167/0x340

[<ffffffff832974fb>] __alloc_skb+0x1db/0x200

[<ffffffff82612b5d>] wg_socket_send_buffer_to_peer+0x3d/0xc0

[<ffffffff8260e94a>] wg_packet_send_handshake_initiation+0xfa/0x110

[<ffffffff8260ec81>] wg_packet_handshake_send_worker+0x21/0x30

[<ffffffff8119c558>] process_one_work+0x2e8/0x770

[<ffffffff8119ca2a>] worker_thread+0x4a/0x4b0

[<ffffffff811a88e0>] kthread+0x120/0x160

[<ffffffff8100242

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/096f9d35cac0a0c95ffafc00db84786b665a4837Refgit.kernel.org/stable/c/0b19bcb753dbfb74710d12bb2761ec5ed706c726Refgit.kernel.org/stable/c/402991a9771587acc2947cf6c4d689c5397f2258Refgit.kernel.org/stable/c/bbbf962d9460194993ee1943a793a0a0af4a7fbfRefgit.kernel.org/stable/c/ebcc492f4ba14bae54b898f1016a37b4282558d1

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49153?

CVE-2022-49153 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49153?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49153?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49153?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49153 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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