wifi: mac80211: check basic rates validity

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commit ce04abc3fc upstream.

When userspace sets basic rates, it might send us some rates
list that's empty or consists of invalid values only. We're
currently ignoring invalid values and then may end up with a
rates bitmap that's empty, which later results in a warning.

Reject the call if there were no valid rates.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reported-by: syzbot+07bee335584b04e7c2f8@syzkaller.appspotmail.com
Tested-by: syzbot+07bee335584b04e7c2f8@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=07bee335584b04e7c2f8
Signed-off-by: Vincenzo Mezzela <vincenzo.mezzela@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Johannes Berg 2023-02-24 10:52:19 +01:00 • committed by Greg Kroah-Hartman

parent 78d2ca10f1

commit 139faad888

1 changed files with 11 additions and 10 deletions

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net/mac80211/cfg.c

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