CVE-2026-98346 is a vulnerability in Linux Kernel
Published on October 6, 2026
wifi: cfg80211: don't get the radio mask for netdev-less wdevs
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: don't get the radio mask for netdev-less wdevs
cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with
wdev->netdev, which can be NULL and then crashes in mac80211.
To avoid that, invert the order of checks since wdev->netdev
is always valid for beaconing interfaces.
Products Associated with CVE-2026-98346
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Affected Versions
Linux:- Version abb4cfe3661aa05426916b21164f88ca5a405a3a and below 5b313159c970e945ee125ca87fad0d96ed913e55 is affected.
- Version abb4cfe3661aa05426916b21164f88ca5a405a3a and below 693d777846d525b8b218bad97a1befa5d9bd4334 is affected.
- Version abb4cfe3661aa05426916b21164f88ca5a405a3a and below 7166da84a7fe3553f9065782fd80299a37b150e5 is affected.
- Version abb4cfe3661aa05426916b21164f88ca5a405a3a and below a7783e585360ee05dfe21d3173dbbe985c94f29e is affected.
- Version 6.11 is affected.
- Before 6.11 is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.