CVE-2021-47194

Updated: 2026-02-27 00:57:25.254614

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x HIGH 7.8

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 7.8 HIGH Already Fixed 2024-04-22 10:00:45
CentOS 7 ELS kernel 3.10.0 7.8 HIGH Released CLSA-2024:1720468480 2024-07-23 17:22:41
CentOS 8.4 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2024:1715949385 2024-05-17 10:12:38
CentOS 8.5 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2024:1715951065 2024-05-17 10:12:39
RHEL 7 ELS kernel 3.10.0 7.8 HIGH Released CLSA-2025:1750353839 2025-06-20 04:45:14
Ubuntu 16.04 ELS linux-hwe 4.15.0 7.8 HIGH Already Fixed 2024-04-22 10:00:52
Ubuntu 16.04 ELS linux 4.4.0 7.8 HIGH Released CLSA-2024:1714073393 2024-04-25 21:41:31
Ubuntu 18.04 ELS linux 4.15.0 7.8 HIGH Already Fixed 2024-04-22 10:00:51