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CVE-2022-49876

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit() When device is running and the interface status is…

Published May 1, 2025CWE-476EPSS 0.17%

Overview

CVE-2022-49876 is a medium-severity vulnerability. It was published on May 1, 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:

wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()

When device is running and the interface status is changed, the gpf issue

is triggered. The problem triggering process is as follows:

Thread A: Thread B

ieee80211_runtime_change_iftype() process_one_work()

... ...

ieee80211_do_stop() ...

... ...

sdata->bss = NULL ...

... ieee80211_subif_start_xmit()

ieee80211_multicast_to_unicast

//!sdata->bss->multicast_to_unicast

cause gpf issue

When the interface status is changed, the sending queue continues to send

packets. After the bss is set to NULL, the bss is accessed. As a result,

this causes a general-pro

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/03eb68c72cee249aeb7af7d04a83c033aca3d6d9Refgit.kernel.org/stable/c/780854186946e0de2be192ee7fa5125666533b3a

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49876?

CVE-2022-49876 is a medium-severity vulnerability. It was published on May 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49876?

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-2022-49876?

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-2022-49876?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49876 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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