Bug 2363775 (CVE-2023-53071) - CVE-2023-53071 kernel: wifi: mt76: do not run mt76_unregister_device() on unregistered hw
Summary: CVE-2023-53071 kernel: wifi: mt76: do not run mt76_unregister_device() on unr...
Keywords:
Status: NEW
Alias: CVE-2023-53071
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-02 16:05 UTC by OSIDB Bzimport
Modified: 2025-05-05 07:19 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2025-05-02 16:05:14 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: do not run mt76_unregister_device() on unregistered hw

Trying to probe a mt7921e pci card without firmware results in a
successful probe where ieee80211_register_hw hasn't been called. When
removing the driver, ieee802111_unregister_hw is called unconditionally
leading to a kernel NULL pointer dereference.
Fix the issue running mt76_unregister_device routine just for registered
hw.

Comment 1 Avinash Hanwate 2025-05-05 07:07:09 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050213-CVE-2023-53071-8d91@gregkh/T


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