Bug 2461546 (CVE-2026-31672) - CVE-2026-31672 kernel: wifi: rt2x00usb: fix devres lifetime
Summary: CVE-2026-31672 kernel: wifi: rt2x00usb: fix devres lifetime
Keywords:
Status: NEW
Alias: CVE-2026-31672
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-24 15:07 UTC by OSIDB Bzimport
Modified: 2026-04-24 22:43 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-04-24 15:07:46 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: rt2x00usb: fix devres lifetime

USB drivers bind to USB interfaces and any device managed resources
should have their lifetime tied to the interface rather than parent USB
device. This avoids issues like memory leaks when drivers are unbound
without their devices being physically disconnected (e.g. on probe
deferral or configuration changes).

Fix the USB anchor lifetime so that it is released on driver unbind.


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