Tracker / CVE-2021-47194
CVE-2021-47194
High 7.8
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.
Affected products and versions
| linux | linux_kernel · 3.6.0 → 4.4.293 |
|---|---|
| linux | linux_kernel · 4.10.0 → 4.14.256 |
| linux | linux_kernel · 4.15.0 → 4.19.218 |
| linux | linux_kernel · 4.20.0 → 5.4.162 |
| linux | linux_kernel · 4.5.0 → 4.9.291 |
| linux | linux_kernel · 5.11.0 → 5.15.5 |
| linux | linux_kernel · 5.5.0 → 5.10.82 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.