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CVE-2022-48808

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net: dsa: fix panic when DSA master device unbinds on shutdown Rafael reports that on a system with LX2160A and Marvell DSA swi…

Published Jul 16, 2024EPSS 0.27%

Overview

CVE-2022-48808 is a medium-severity vulnerability. It was published on July 16, 2024 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:

net: dsa: fix panic when DSA master device unbinds on shutdown

Rafael reports that on a system with LX2160A and Marvell DSA switches,

if a reboot occurs while the DSA master (dpaa2-eth) is up, the following

panic can be seen:

systemd-shutdown[1]: Rebooting.

Unable to handle kernel paging request at virtual address 00a0000800000041

[00a0000800000041] address between user and kernel address ranges

Internal error: Oops: 96000004 [#1] PREEMPT SMP

CPU: 6 PID: 1 Comm: systemd-shutdow Not tainted 5.16.5-00042-g8f5585009b24 #32

pc : dsa_slave_netdevice_event+0x130/0x3e4

lr : raw_notifier_call_chain+0x50/0x6c

Call trace:

dsa_slave_netdevice_event+0x130/0x3e4

raw_notifier_call_chain+0x50/0x6c

call_netdevice_notifiers_info+0x54/0xa0

__dev_close_many+0x50/0x130

dev_close_many+0x84/0x120

unregister_netdevice_many+0x130/0x710

unregister_netdevice_queue+0x8c/0xd0

unregister_netdev+0x20/0x30

dpaa2_eth_remove+0x68/0x190

fs

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/89b60402d43cdab4387dbbf24afebda5cf092ae7Refgit.kernel.org/stable/c/ee534378f00561207656663d93907583958339aeRefgit.kernel.org/stable/c/ff45899e732e57088985e3a497b1d9100571c0f5Refgit.kernel.org/stable/c/89b60402d43cdab4387dbbf24afebda5cf092ae7Refgit.kernel.org/stable/c/ee534378f00561207656663d93907583958339aeRefgit.kernel.org/stable/c/ff45899e732e57088985e3a497b1d9100571c0f5

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48808?

CVE-2022-48808 is a medium-severity vulnerability. It was published on July 16, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48808?

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-2022-48808?

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-2022-48808?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48808 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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