CVE-2021-47194
High
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.
SeverityHigh
CVSS7.8
Exploit probability17. percentile0.3%
Product
Linux Kernel
PublishedApr 10, 2024
First seenApr 10, 2024
How to fix
Update
- linux linux_kernel4.4.293, 4.9.291, 4.14.256, 4.19.218, 5.4.162, 5.10.82, 5.15.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.6.0 ≤ v < 4.4.293, 4.5.0 ≤ v < 4.9.291, 4.10.0 ≤ v < 4.14.256, 4.15.0 ≤ v < 4.19.218, 4.20.0 ≤ v < 5.4.162, 5.5.0 ≤ v < 5.10.82, 5.11.0 ≤ v < 5.15.5 | 4.4.293, 4.9.291, 4.14.256, 4.19.218, 5.4.162, 5.10.82, 5.15.5 |
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