CVE-2022-47521 — An issue was discovered in the Linux kernel before 6
An issue was discovered in the Linux kernel before 6.0.11. Missing validation of IEEE80211_P2P_ATTR_CHANNEL_LIST in drivers/net/wireless/microchip/wilc1000/cfg80211.c in the WILC1000 wireless driver can trigger a heap-based buffer overflow when parsing the operating channel attri
Published
2022-12-18T00:00:00.000Z
Last modified
2025-04-17T18:48:33.179Z
01What is this vulnerability?
An issue was discovered in the Linux kernel before 6.0.11. Missing validation of IEEE80211_P2P_ATTR_CHANNEL_LIST in drivers/net/wireless/microchip/wilc1000/cfg80211.c in the WILC1000 wireless driver can trigger a heap-based buffer overflow when parsing the operating channel attribute from Wi-Fi management frames.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2022-12-18T00:00:00.000Z
- Last modified: 2025-04-17T18:48:33.179Z
09References
- lore.kernel.org — https://lore.kernel.org/r/20221123153543.8568-4-philipturnbull%40github.com
- github.com — https://github.com/torvalds/linux/commit/f9b62f9843c7b0afdaecabbcebf1dbba1859940…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
- security.netapp.com — https://security.netapp.com/advisory/ntap-20230113-0007/
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