Answer in brief
CVE-2021-47194 records a High severity (CVSS 7.8) vulnerability in cfg80211: call cfg80211_stop_ap when switch from P2P_GO type. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2021-47194 records a High severity (CVSS 7.8) vulnerability in cfg80211: call cfg80211_stop_ap when switch from P2P_GO type. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ac800140c20e7ae51117e71289065bedd4930fc2 <8f06bb8c216bcd172394f61e557727e691b4cb24 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <0738cdb636c21ab552eaecf905efa4a6070e3ebc || >=ac800140c20e7ae51117e71289065bedd4930fc2 <4e458abbb4a523f1413bfe15c079cf4e24c15b21 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <b8a045e2a9b234cfbc06cf36923886164358ddec || >=ac800140c20e7ae51117e71289065bedd4930fc2 <52affc201fc22a1ab9a59ef0ed641a9adfcb8d13 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <7b97b5776daa0b39dbdadfea176f9cc0646d4a66 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd || >=ac800140c20e7ae51117e71289065bedd4930fc2 <563fbefed46ae4c1f70cffb8eb54c02df480b2c2 | 8f06bb8c216bcd172394f61e557727e691b4cb24, 0738cdb636c21ab552eaecf905efa4a6070e3ebc, 4e458abbb4a523f1413bfe15c079cf4e24c15b21, b8a045e2a9b234cfbc06cf36923886164358ddec, 52affc201fc22a1ab9a59ef0ed641a9adfcb8d13, 7b97b5776daa0b39dbdadfea176f9cc0646d4a66, 5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd, 563fbefed46ae4c1f70cffb8eb54c02df480b2c2 |
| Linux/Linuxgeneric | 3.6 | Not reported |
Published upstream
Apr 10, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ac800140c20e7ae51117e71289065bedd4930fc2 <8f06bb8c216bcd172394f61e557727e691b4cb24 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <0738cdb636c21ab552eaecf905efa4a6070e3ebc || >=ac800140c20e7ae51117e71289065bedd4930fc2 <4e458abbb4a523f1413bfe15c079cf4e24c15b21 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <b8a045e2a9b234cfbc06cf36923886164358ddec || >=ac800140c20e7ae51117e71289065bedd4930fc2 <52affc201fc22a1ab9a59ef0ed641a9adfcb8d13 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <7b97b5776daa0b39dbdadfea176f9cc0646d4a66 || >=ac800140c20e7ae51117e71289065bedd4930fc2 <5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd || >=ac800140c20e7ae51117e71289065bedd4930fc2 <563fbefed46ae4c1f70cffb8eb54c02df480b2c2 | 8f06bb8c216bcd172394f61e557727e691b4cb24, 0738cdb636c21ab552eaecf905efa4a6070e3ebc, 4e458abbb4a523f1413bfe15c079cf4e24c15b21, b8a045e2a9b234cfbc06cf36923886164358ddec, 52affc201fc22a1ab9a59ef0ed641a9adfcb8d13, 7b97b5776daa0b39dbdadfea176f9cc0646d4a66, 5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd, 563fbefed46ae4c1f70cffb8eb54c02df480b2c2 |
| Linux/Linuxgeneric | 3.6 | Not reported |
Published upstream
Apr 10, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.