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CVE-2022-48850

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net-sysfs: add check for netdevice being present to speed_show When bringing down the netdevice or system shutdown, a panic can…

Published Jul 16, 2024CWE-476EPSS 0.21%

Overview

CVE-2022-48850 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-sysfs: add check for netdevice being present to speed_show

When bringing down the netdevice or system shutdown, a panic can be

triggered while accessing the sysfs path because the device is already

removed.

[ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called

[ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called

...

[ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null)

[ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280

crash> bt

...

PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: "amsd"

...

#9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778

[exception RIP: dma_pool_alloc+0x1ab]

RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046

RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000

RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d8740

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/081369ad088a76429984483b8a5f7e967a125aadRefgit.kernel.org/stable/c/3a79f380b3e10edf6caa9aac90163a5d7a282204Refgit.kernel.org/stable/c/4224cfd7fb6523f7a9d1c8bb91bb5df1e38eb624Refgit.kernel.org/stable/c/75fc8363227a999e8f3d17e2eb28dce5600dcd3fRefgit.kernel.org/stable/c/8879b5313e9fa5e0c6d6812a0d25d83aed0110e2Refgit.kernel.org/stable/c/8d5e69d8fbf3a35ab4fbe56b8f092802b43f3ef6Refgit.kernel.org/stable/c/a7b9ab04c5932dee7ec95e0abc58b0df350c0dd2Refgit.kernel.org/stable/c/d15c9f6e3335002fea1c33bc8f71a705fa96976cRefgit.kernel.org/stable/c/081369ad088a76429984483b8a5f7e967a125aadRefgit.kernel.org/stable/c/3a79f380b3e10edf6caa9aac90163a5d7a282204

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48850?

CVE-2022-48850 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-2022-48850?

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-2022-48850?

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-2022-48850?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48850 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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