Bug 2540480 (CVE-2026-97430) - CVE-2026-97430 kernel: xhci: Prevent queuing new commands if xhci is inaccessible
Summary: CVE-2026-97430 kernel: xhci: Prevent queuing new commands if xhci is inaccess...
Keywords:
Status: NEW
Alias: CVE-2026-97430
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 16:59 UTC by OSIDB Bzimport
Modified: 2026-09-29 13:12 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-24 16:59:08 UTC 
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.
Comment 1 Mauro Matteo Cascella 2026-09-29 12:51:11 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97430.mbox
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