What’s Vulnerable › Vulnerabilities

CVE-2025-38156: wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init()

• 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: 2025-07-03 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init() devm_ioremap() returns NULL on error. Currently, mt7996_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7996_mmio_wed_init()

Affected products

• Linux kernel: from 6.8 before 6.12.34; from 6.13 before 6.15.3 — fixed in 6.12.34, 6.15.3

How to fix

Upgrade to a fixed version: Linux kernel 6.12.34, 6.15.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1072fc0ca1f8d0d5397d24853386876f937b8e63
• https://git.kernel.org/stable/c/8f30e2b059757d8711a823e4c9c023db62a1d171
• https://git.kernel.org/stable/c/af861c6dea2ef06845a5c7672999a06c06099735

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