| commit | c7256f579f8302ce2c038181c30060d0b40017b2 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Fri Sep 28 14:51:48 2018 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Mon Oct 01 23:27:28 2018 -0700 |
| tree | 711dba8be73a7b425c523b09098b57f7f77d330e | |
| parent | 06e55addd3f40b5294e448c2cb7605ca4f28c2e3 [diff] |
tun: initialize napi_mutex unconditionally This is the first part to fix following syzbot report : console output: https://syzkaller.appspot.com/x/log.txt?x=145378e6400000 kernel config: https://syzkaller.appspot.com/x/.config?x=443816db871edd66 dashboard link: https://syzkaller.appspot.com/bug?extid=e662df0ac1d753b57e80 Following patch is fixing the race condition, but it seems safer to initialize this mutex at tfile creation anyway. Fixes: 90e33d459407 ("tun: enable napi_gro_frags() for TUN/TAP driver") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot+e662df0ac1d753b57e80@syzkaller.appspotmail.com Signed-off-by: David S. Miller <davem@davemloft.net>