QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2021-47194

Back to search

CVE-2021-47194

Published: Apr 10, 2024

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
ac800140c20e7ae51117e71289065bedd4930fc2 - < 8f06bb8c216bcd172394f61e557727e691b4cb24
affected
ac800140c20e7ae51117e71289065bedd4930fc2 - < 0738cdb636c21ab552eaecf905efa4a6070e3ebc
affected
ac800140c20e7ae51117e71289065bedd4930fc2 - < 4e458abbb4a523f1413bfe15c079cf4e24c15b21
affected
ac800140c20e7ae51117e71289065bedd4930fc2 - < b8a045e2a9b234cfbc06cf36923886164358ddec
affected
ac800140c20e7ae51117e71289065bedd4930fc2 - < 52affc201fc22a1ab9a59ef0ed641a9adfcb8d13

+3 more versions

Linux

Linux

affected
3.6
unaffected
0 - < 3.6
unaffected
4.4.293 - <= 4.4.*
unaffected
4.9.291 - <= 4.9.*
unaffected
4.14.256 - <= 4.14.*

+5 more versions

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now