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CVE-2022-49839

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: scsi: scsi_transport_sas: Fix error handling in sas_phy_add() If transport_add_device() fails in sas_phy_add(), the kernel will…

Published May 1, 2025CWE-476EPSS 0.21%

Overview

CVE-2022-49839 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:

scsi: scsi_transport_sas: Fix error handling in sas_phy_add()

If transport_add_device() fails in sas_phy_add(), the kernel will crash

trying to delete the device in transport_remove_device() called from

sas_remove_host().

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108

CPU: 61 PID: 42829 Comm: rmmod Kdump: loaded Tainted: G W 6.1.0-rc1+ #173

pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)

pc : device_del+0x54/0x3d0

lr : device_del+0x37c/0x3d0

Call trace:

device_del+0x54/0x3d0

attribute_container_class_device_del+0x28/0x38

transport_remove_classdev+0x6c/0x80

attribute_container_device_trigger+0x108/0x110

transport_remove_device+0x28/0x38

sas_phy_delete+0x30/0x60 [scsi_transport_sas]

do_sas_phy_delete+0x6c/0x80 [scsi_transport_sas]

device_for_each_child+0x68/0xb0

sas_remove_children+0x40/0x50 [scsi_transport_sas]

sas_remove_host+0x20/0x38 [

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/03aabcb88aeeb7221ddb6196ae84ad5fb17b743fRefgit.kernel.org/stable/c/2f21d653c648735657e23948b1d7ac7273de0f87Refgit.kernel.org/stable/c/5d7bebf2dfb0dc97aac1fbace0910e557ecdb16fRefgit.kernel.org/stable/c/c736876ee294bb4f271d76a25cc7d70c8537bc5d

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49839?

CVE-2022-49839 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-2022-49839?

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-2022-49839?

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-2022-49839?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49839 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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