5.5

CVE-2023-53071

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.18 < 6.1.113
Linux ≫ Linux Kernel Version >= 6.2 < 6.2.9
Linux ≫ Linux Kernel Version6.3 Updaterc1
Linux ≫ Linux Kernel Version6.3 Updaterc2
Linux ≫ Linux Kernel Version6.3 Updaterc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.059
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/dffe86df26aee01a5fc56a175b7a7f157961e370
Patch
https://git.kernel.org/stable/c/2d34f27714c97a9786a30b3bb54944d6d8ed612f
Patch
https://git.kernel.org/stable/c/41130c32f3a18fcc930316da17f3a5f3bc326aa1
Patch