What’s Vulnerable › Vulnerabilities

CVE-2025-21798: firewire: test: Fix potential null dereference in firewire kunit test

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-27 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 6.8 before 6.12.13; from 6.13 before 6.13.2 — fixed in 6.12.13, 6.13.2

How to fix

Upgrade to a fixed version: Linux kernel 6.12.13, 6.13.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a
• https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8
• https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f

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