CVE-2025-21798

firewire: test: Fix potential null dereference in firewire kunit test

Description

In the Linux kernel, the following vulnerability has been resolved: firewire: test: Fix potential null dereference in firewire kunit test kunit_kzalloc() may return a NULL pointer, dereferencing it without NULL check may lead to NULL dereference. Add a NULL check for test_state.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f patch
https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8 patch
https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a patch

Frequently Asked Questions

What is the severity of CVE-2025-21798?
CVE-2025-21798 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21798?
To fix CVE-2025-21798, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21798 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21798 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21798?
CVE-2025-21798 affects Linux Linux, Linux Linux.
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