CVE-2021-47194

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 10 Apr 2024, 18:56
Last modified:11 May 2026, 13:49

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Apr 2024, 18:56
Published
Vulnerability first disclosed
11 May 2026, 13:49
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 5%

Techniques & Countermeasures

  • 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.

Affected Systems

  • linux•linux

    ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 8f06bb8c216bcd172394f61e557727e691b4cb24 | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 0738cdb636c21ab552eaecf905efa4a6070e3ebc | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 4e458abbb4a523f1413bfe15c079cf4e24c15b21 | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < b8a045e2a9b234cfbc06cf36923886164358ddec | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 52affc201fc22a1ab9a59ef0ed641a9adfcb8d13 | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 7b97b5776daa0b39dbdadfea176f9cc0646d4a66 | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd | ≥ ac800140c20e7ae51117e71289065bedd4930fc2, < 563fbefed46ae4c1f70cffb8eb54c02df480b2c2 | 3.6

  • linux•linux_kernel

    ≥ 3.6.0, < 4.4.293 | ≥ 4.5.0, < 4.9.291 | ≥ 4.10.0, < 4.14.256 | ≥ 4.15.0, < 4.19.218 | ≥ 4.20.0, < 5.4.162 | ≥ 5.5.0, < 5.10.82 | ≥ 5.11.0, < 5.15.5

References (8)