wifi: cfg80211: don't get the radio mask for netdev-less wdevs

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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.

Assisted-by: LLM
Fixes: abb4cfe366 ("wifi: cfg80211: extend interface combination check for multi-radio")
Reported-by: syzbot+abff43d2d045e37c0bb2@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=abff43d2d045e37c0bb2
Link: https://patch.msgid.link/20260904165614.2056a8b7dc91.I7412c5062d8166ad6c81ee7252cec49dea19a60f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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This commit is contained in:

Johannes Berg 2026-09-04 16:55:01 +02:00

parent ad7265b299

commit a7783e5853

1 changed files with 4 additions and 5 deletions

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9

net/wireless/util.c

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