diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-01-22 17:11:16 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-01-26 11:59:45 +0100 |
| commit | 054c9939b4800a91475d8d89905827bf9e1ad97a (patch) | |
| tree | 09a0f558ca3b93667315e19b45582a8f94b3f816 /net/lapb/lapb_timer.c | |
| parent | 5122565188bae59d507d90a9a9fd2fd6107f4439 (diff) | |
| download | linux-054c9939b4800a91475d8d89905827bf9e1ad97a.tar.gz linux-054c9939b4800a91475d8d89905827bf9e1ad97a.tar.bz2 linux-054c9939b4800a91475d8d89905827bf9e1ad97a.zip | |
mac80211: pause TX while changing interface type
syzbot reported a crash that happened when changing the interface
type around a lot, and while it might have been easy to fix just
the symptom there, a little deeper investigation found that really
the reason is that we allowed packets to be transmitted while in
the middle of changing the interface type.
Disallow TX by stopping the queues while changing the type.
Fixes: 34d4bc4d41d2 ("mac80211: support runtime interface type changes")
Reported-by: syzbot+d7a3b15976bf7de2238a@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20210122171115.b321f98f4d4f.I6997841933c17b093535c31d29355be3c0c39628@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions