7.8

CVE-2021-47194

cfg80211: call cfg80211_stop_ap when switch from P2P_GO type

In the Linux kernel, the following vulnerability has been resolved:

cfg80211: call cfg80211_stop_ap when switch from P2P_GO type

If the userspace tools switch from NL80211_IFTYPE_P2P_GO to
NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it
does not call the cleanup cfg80211_stop_ap(), this leads to the
initialization of in-use data. For example, this path re-init the
sdata->assigned_chanctx_list while it is still an element of
assigned_vifs list, and makes that linked list corrupt.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.6.0 < 4.4.293
Linux ≫ Linux Kernel Version >= 4.5.0 < 4.9.291
Linux ≫ Linux Kernel Version >= 4.10.0 < 4.14.256
Linux ≫ Linux Kernel Version >= 4.15.0 < 4.19.218
Linux ≫ Linux Kernel Version >= 4.20.0 < 5.4.162
Linux ≫ Linux Kernel Version >= 5.5.0 < 5.10.82
Linux ≫ Linux Kernel Version >= 5.11.0 < 5.15.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.159
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-665 Improper Initialization

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc
Patch
https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21
Patch
https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13
Patch
https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2
Patch
https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd
Patch
https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66
Patch
https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24
Patch
https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec
Patch