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CVE-2022-49156

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix scheduling while atomic The driver makes a call into midlayer (fc_remote_port_delete) which can put the thre…

Published Feb 26, 2025EPSS 0.27%

Overview

CVE-2022-49156 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:

scsi: qla2xxx: Fix scheduling while atomic

The driver makes a call into midlayer (fc_remote_port_delete) which can put

the thread to sleep. The thread that originates the call is in interrupt

context. The combination of the two trigger a crash. Schedule the call in

non-interrupt context where it is more safe.

kernel: BUG: scheduling while atomic: swapper/7/0/0x00010000

kernel: Call Trace:

kernel: <IRQ>

kernel: dump_stack+0x66/0x81

kernel: __schedule_bug.cold.90+0x5/0x1d

kernel: __schedule+0x7af/0x960

kernel: schedule+0x28/0x80

kernel: schedule_timeout+0x26d/0x3b0

kernel: wait_for_completion+0xb4/0x140

kernel: ? wake_up_q+0x70/0x70

kernel: __wait_rcu_gp+0x12c/0x160

kernel: ? sdev_evt_alloc+0xc0/0x180 [scsi_mod]

kernel: synchronize_sched+0x6c/0x80

kernel: ? call_rcu_bh+0x20/0x20

kernel: ? __bpf_trace_rcu_invoke_callback+0x10/0x10

kernel: sdev_evt_alloc+0xfd/0x180 [scsi_mod]

kernel: starget_for_each_devi

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.

Frequently asked questions

What is CVE-2022-49156?

CVE-2022-49156 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-2022-49156?

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-2022-49156?

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-2022-49156?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49156 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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