CVE-2021-47194
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47194
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47194.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47194
- Downstream
- Related
- Published
- 2024-04-10T19:15:47Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
cfg80211: call cfg80211stopap when switch from P2P_GO type
If the userspace tools switch from NL80211IFTYPEP2PGO to NL80211IFTYPEADHOC via sendmsg(NL80211CMDSETINTERFACE), it does not call the cleanup cfg80211stopap(), this leads to the initialization of in-use data. For example, this path re-init the sdata->assignedchanctxlist while it is still an element of assignedvifs list, and makes that linked list corrupt.
- References
-
- https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc
- https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21
- https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13
- https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2
- https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd
- https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66
- https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24
- https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec