On Sat, Mar 31, 2018 at 04:01:02PM -0700, syzbot wrote: > Hello, > > syzbot hit the following crash on bpf-next commit > 7828f20e3779e4e85e55371e0e43f5006a15fb41 (Sat Mar 31 00:17:57 2018 +0000) > Merge branch 'bpf-cgroup-bind-connect' > syzbot dashboard link: > https://syzkaller.appspot.com/bug?extid=f3bd89a5ab3266b10540 > > So far this crash happened 22 times on bpf-next, upstream. > C reproducer: https://syzkaller.appspot.com/x/repro.c?id=6290970458980352 > syzkaller reproducer: > https://syzkaller.appspot.com/x/repro.syz?id=6577156880596992 > Raw console output: > https://syzkaller.appspot.com/x/log.txt?id=5107570603720704 > Kernel config: > https://syzkaller.appspot.com/x/.config?id=5909223872832634926 > compiler: gcc (GCC) 7.1.1 20170620 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+f3bd89a5ab3266b10540@xxxxxxxxxxxxxxxxxxxxxxxxx > It will help syzbot understand when the bug is fixed. See footer for > details. > If you forward the report, please keep this part and the footer. > > RBP: 00007ffd1bbb3ae0 R08: 0000000020000200 R09: 0000000300000000 > R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff > R13: 0000000000000003 R14: 0000000000001380 R15: 00007ffd1bbb3378 > list_del corruption. prev->next should be 00000000a8104008, but was > 00000000081c6144 Lovely... I'll look into that tomorrow morning.