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CVE-2025-37802

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING" wait_event_timeout() will set the state of the current task to…

Published May 8, 2025CWE-667EPSS 0.36%

Overview

CVE-2025-37802 is a high-severity vulnerability. It was published on May 8, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"

wait_event_timeout() will set the state of the current

task to TASK_UNINTERRUPTIBLE, before doing the condition check. This

means that ksmbd_durable_scavenger_alive() will try to acquire the mutex

while already in a sleeping state. The scheduler warns us by giving

the following warning:

do not call blocking ops when !TASK_RUNNING; state=2 set at

[<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0

WARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160

mutex lock is not needed in ksmbd_durable_scavenger_alive().

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/1df0d4c616138784e033ad337961b6e1a6bcd999Refgit.kernel.org/stable/c/8f805b3746d2f41702c77cba22f94f8415fadd1aRefgit.kernel.org/stable/c/cd161198e091e8a62b9bd631be970ea9a87d2d6a

How CyberStrike helps

Frequently asked questions

What is CVE-2025-37802?

CVE-2025-37802 is a high-severity vulnerability. It was published on May 8, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-37802?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-37802?

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-2025-37802?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-37802 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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