Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U N N H 5.5 .0017 6.6 —
AFFECTED Product Versions Fixed Linux 6cd536fe62ef58d7c4eac2da07ab0ed7fd19010d – — Linux 5.8 – 5.10.77
TIMELINE May 22 Reserved by Linux May 22 Published (CNA: Linux) Aug 4 RESCORED — CVE-2021-47494 (Linux). CVSS 7.8 → 5.5 (NVD).
In the Linux kernel, the following vulnerability has been resolved: cfg80211: fix management registrations locking The management registrations locking was broken, the list was locked for each wdev, but cfg80211_mgmt_registrations_update() iterated it without holding all the correct spinlocks, causing list corruption. Rather than trying to fix it with fine-grained locking, just move the lock to the wiphy/rdev (still need the list on each wdev), we already need to hold the wdev lock to change it, so there's no contention on the lock in any case. This trivially fixes the bug since we hold one wdev's lock already, and now will hold the lock that protects all lists.
| Date | Event | Detail |
|---|---|---|
| May 22, 2024 | Reserved | Reserved by Linux |
| May 22, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2021-47494 (Linux). CVSS 7.8 → 5.5 (NVD). |
Authoritative record: CVE-2021-47494 at cve.org
Vendors: linux
Weaknesses: CWE-667
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-47494 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.