CVE-2022-48784 (GCVE-0-2022-48784)
Vulnerability from cvelistv5
Published
2024-07-16 11:13
Modified
2026-05-23 15:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: cfg80211: fix race in netlink owner interface destruction My previous fix here to fix the deadlock left a race where the exact same deadlock (see the original commit referenced below) can still happen if cfg80211_destroy_ifaces() already runs while nl80211_netlink_notify() is still marking some interfaces as nl_owner_dead. The race happens because we have two loops here - first we dev_close() all the netdevs, and then we destroy them. If we also have two netdevs (first one need only be a wdev though) then we can find one during the first iteration, close it, and go to the second iteration -- but then find two, and try to destroy also the one we didn't close yet. Fix this by only iterating once.
References
Impacted products
Vendor Product Version
Linux Linux Version: ea6b2098dd02789f68770fd3d5a373732207be2f
Version: ea6b2098dd02789f68770fd3d5a373732207be2f
Version: ea6b2098dd02789f68770fd3d5a373732207be2f
Version: 2e4f97122f3a9df870dfe9671994136448890768
Version: 5.12.1   ≤
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