syzbot


possible deadlock in rtnl_lock

Status: fixed on 2018/02/01 04:00
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 124da8f6118b tuntap: fix possible deadlock when fail to register netdev
First crash: 1669d, last: 1612d
similar bugs (9):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 possible deadlock in rtnl_lock C 4676 985d 1177d 0/2 public: reported C repro on 2019/04/12 00:00
upstream possible deadlock in rtnl_lock (5) C 1009 1529d 1558d 6/22 fixed on 2018/05/08 18:30
upstream possible deadlock in rtnl_lock (3) C 3633 1606d 1607d 4/22 fixed on 2018/02/07 13:48
linux-4.19 possible deadlock in rtnl_lock C error 31 658d 908d 0/1 upstream: reported C repro on 2020/01/06 01:18
upstream possible deadlock in rtnl_lock (4) C 73333 1589d 1606d 4/22 fixed on 2018/02/26 20:04
upstream possible deadlock in rtnl_lock (6) C done error 551 848d 1090d 0/22 upstream: reported C repro on 2019/07/08 19:37
android-49 possible deadlock in rtnl_lock C 2906 1407d 1559d 0/3 closed as invalid on 2019/04/05 05:43
upstream possible deadlock in rtnl_lock (2) C 10369 1608d 1612d 4/22 fixed on 2018/02/04 23:45
linux-4.14 possible deadlock in rtnl_lock C inconclusive 312 767d 908d 0/1 upstream: reported C repro on 2020/01/06 01:45

Sample crash report:
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets

======================================================
WARNING: possible circular locking dependency detected
4.15.0+ #288 Not tainted
------------------------------------------------------
syzkaller182353/4123 is trying to acquire lock:
 (rtnl_mutex){+.+.}, at: [<00000000b7215bae>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72

but task is already holding lock:
 (&xt[i].mutex){+.+.}, at: [<000000006a6a9561>] xt_find_table_lock+0x40/0x3d0 net/netfilter/x_tables.c:1036

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&xt[i].mutex){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
       xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229
       xt_request_find_target+0x2c/0xb0 net/netfilter/x_tables.c:255
       find_check_entry.isra.7+0x669/0xcf0 net/ipv6/netfilter/ip6_tables.c:567
       translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:744
       do_replace net/ipv6/netfilter/ip6_tables.c:1162 [inline]
       do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1688
       nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
       nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
       ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928
       udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1452
       sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968
       SYSC_setsockopt net/socket.c:1831 [inline]
       SyS_setsockopt+0x189/0x360 net/socket.c:1810
       entry_SYSCALL_64_fastpath+0x29/0xa0

-> #1 (sk_lock-AF_INET6){+.+.}:
       lock_sock_nested+0xc2/0x110 net/core/sock.c:2770
       lock_sock include/net/sock.h:1459 [inline]
       do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167
       ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922
       tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2875
       sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968
       SYSC_setsockopt net/socket.c:1831 [inline]
       SyS_setsockopt+0x189/0x360 net/socket.c:1810
       entry_SYSCALL_64_fastpath+0x29/0xa0

-> #0 (rtnl_mutex){+.+.}:
       lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
       rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
       unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1656
       tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123
       cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:654
       __do_replace+0x7d7/0xa90 net/ipv4/netfilter/ip_tables.c:1091
       do_replace net/ipv4/netfilter/ip_tables.c:1147 [inline]
       do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1677
       nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
       nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
       ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1256
       sctp_setsockopt+0x2a0/0x5de0 net/sctp/socket.c:4074
       sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968
       SYSC_setsockopt net/socket.c:1831 [inline]
       SyS_setsockopt+0x189/0x360 net/socket.c:1810
       entry_SYSCALL_64_fastpath+0x29/0xa0

other info that might help us debug this:

Chain exists of:
  rtnl_mutex --> sk_lock-AF_INET6 --> &xt[i].mutex

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&xt[i].mutex);
                               lock(sk_lock-AF_INET6);
                               lock(&xt[i].mutex);
  lock(rtnl_mutex);

 *** DEADLOCK ***

2 locks held by syzkaller182353/4123:
 #0:  (sk_lock-AF_INET){+.+.}, at: [<00000000c87e41d3>] lock_sock include/net/sock.h:1459 [inline]
 #0:  (sk_lock-AF_INET){+.+.}, at: [<00000000c87e41d3>] ip_setsockopt+0x8c/0xb0 net/ipv4/ip_sockglue.c:1255
 #1:  (&xt[i].mutex){+.+.}, at: [<000000006a6a9561>] xt_find_table_lock+0x40/0x3d0 net/netfilter/x_tables.c:1036

stack backtrace:
CPU: 0 PID: 4123 Comm: syzkaller182353 Not tainted 4.15.0+ #288
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 print_circular_bug.isra.38+0x2cd/0x2dc kernel/locking/lockdep.c:1223
 check_prev_add kernel/locking/lockdep.c:1863 [inline]
 check_prevs_add kernel/locking/lockdep.c:1976 [inline]
 validate_chain kernel/locking/lockdep.c:2417 [inline]
 __lock_acquire+0x30a8/0x3e00 kernel/locking/lockdep.c:3431
 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
 __mutex_lock_common kernel/locking/mutex.c:756 [inline]
 __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
 unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1656
 tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123
 cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:654
 __do_replace+0x7d7/0xa90 net/ipv4/netfilter/ip_tables.c:1091
 do_replace net/ipv4/netfilter/ip_tables.c:1147 [inline]
 do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1677
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1256
 sctp_setsockopt+0x2a0/0x5de0 net/sctp/socket.c:4074
 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968
 SYSC_setsockopt net/socket.c:1831 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1810
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x442009
RSP: 002b:00007ffff758cfc8 EFLAGS: 00000207 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000442009
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 31affa775212f497 R08: 0000000000000308 R09: 0000000000000000
R10: 000000002002ccf8 R11: 0000000000000207 R12: f3023f5f5df3bc21
R13: f6fcce9cd855ec40 R14: fbfe5b6031634428 R15: 0000000000000000
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets
xt_TCPMSS: Only works on TCP SYN packets

Crashes (15711):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2018/02/01 01:09 upstream 3da90b159b14 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 23:46 upstream 3da90b159b14 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 21:22 upstream 3da90b159b14 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 18:37 upstream 3da90b159b14 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 14:53 upstream 3da90b159b14 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 14:00 upstream 3da90b159b14 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 10:42 upstream 72906f38934a 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 09:41 upstream 72906f38934a 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 08:13 upstream 72906f38934a 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/31 01:36 upstream 72906f38934a 02553e22 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 19:22 upstream 6304672b7f0a a899be78 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 19:04 upstream 6304672b7f0a a899be78 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 12:12 upstream 6304672b7f0a 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 11:11 upstream 6304672b7f0a 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 08:55 upstream 6304672b7f0a 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 07:46 upstream 6304672b7f0a 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 04:06 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 03:24 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/30 01:38 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 23:32 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 22:51 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 15:47 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 14:30 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 10:50 upstream d8a5b80568a9 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 09:45 upstream 24b1cccf9229 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 08:37 upstream 24b1cccf9229 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 08:26 upstream 24b1cccf9229 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 03:17 upstream 24b1cccf9229 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/29 00:56 upstream 24b1cccf9229 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 21:43 upstream 24b1cccf9229 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 17:10 upstream c4e0ca7fa241 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 15:44 upstream c4e0ca7fa241 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 14:50 upstream c4e0ca7fa241 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 12:05 upstream c4e0ca7fa241 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 09:22 upstream c4e0ca7fa241 08d47756 .config log report syz C
ci-upstream-kasan-gce 2018/01/28 02:10 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/28 01:42 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 23:16 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 20:57 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 19:38 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 18:57 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 18:44 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 17:16 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-kasan-gce 2018/01/27 16:58 upstream c4e0ca7fa241 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/02/01 00:45 net-next a54667f6728c 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 23:26 net-next a54667f6728c 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 21:10 net-next a54667f6728c 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 17:37 net-next a54667f6728c 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 14:34 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 13:47 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 11:23 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 11:10 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 09:53 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 07:58 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/31 01:21 net-next 91e6dd828425 02553e22 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/30 19:05 net-next 91e6dd828425 a899be78 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/30 18:20 net-next 91e6dd828425 a899be78 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/30 11:24 net-next f813614f5311 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/30 08:27 net-next f813614f5311 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/30 07:30 net-next f813614f5311 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/30 01:24 net-next 3e3ab9ccca5b 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 23:17 net-next 3e3ab9ccca5b 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 22:36 net-next 3e3ab9ccca5b 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 18:55 net-next 3e3ab9ccca5b 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 15:33 net-next 868c36dcc949 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 14:15 net-next 868c36dcc949 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 10:26 net-next 868c36dcc949 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 09:25 net-next 868c36dcc949 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 08:13 net-next 868c36dcc949 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 08:10 net-next 868c36dcc949 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 03:02 net-next 751c45bd828f 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/29 00:41 net-next 751c45bd828f 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 21:29 net-next 751c45bd828f 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 17:28 net-next 751c45bd828f 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 16:58 net-next 751c45bd828f 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 16:23 net-next 751c45bd828f 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 15:30 net-next 6bb46bc57c8e 08d47756 .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 07:51 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/28 02:54 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 23:34 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 23:15 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 21:43 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 20:18 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 19:44 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 19:12 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 18:34 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 17:55 net-next 6bb46bc57c8e 08146b1a .config log report syz C
ci-upstream-mmots-kasan-gce 2017/12/11 11:59 mmots 82bcf1def3b5 5ad0ce95 .config log report syz C
ci-upstream-next-kasan-gce 2017/12/06 05:14 linux-next d5c52866f560 0796857b .config log report syz C
ci-upstream-net-kasan-gce 2018/01/27 16:14 net-next 6bb46bc57c8e 08146b1a .config log report
ci-upstream-mmots-kasan-gce 2018/01/11 18:48 mmots 4147d50978df 9dc808a6 .config log report
ci-upstream-mmots-kasan-gce 2017/12/21 04:19 mmots 82bcf1def3b5 90a46995 .config log report
ci-upstream-mmots-kasan-gce 2017/12/21 03:13 mmots 82bcf1def3b5 90a46995 .config log report
ci-upstream-mmots-kasan-gce 2017/12/21 01:26 mmots 82bcf1def3b5 90a46995 .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 21:50 mmots 82bcf1def3b5 90a46995 .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 17:03 mmots 82bcf1def3b5 90a46995 .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 13:54 mmots 82bcf1def3b5 90a46995 .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 09:44 mmots 82bcf1def3b5 2d836b1d .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 06:49 mmots 82bcf1def3b5 2d836b1d .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 04:59 mmots 82bcf1def3b5 2d836b1d .config log report
ci-upstream-mmots-kasan-gce 2017/12/20 01:45 mmots 82bcf1def3b5 2d836b1d .config log report
ci-upstream-mmots-kasan-gce 2017/12/19 20:56 mmots 82bcf1def3b5 af9163c7 .config log report
ci-upstream-mmots-kasan-gce 2017/12/19 19:08 mmots 82bcf1def3b5 af9163c7 .config log report
ci-upstream-mmots-kasan-gce 2017/12/19 11:37 mmots 82bcf1def3b5 25793abb .config log report
ci-upstream-mmots-kasan-gce 2017/12/19 04:40 mmots 82bcf1def3b5 1c4160ef .config log report
ci-upstream-mmots-kasan-gce 2017/12/19 00:09 mmots 82bcf1def3b5 1c4160ef .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 21:21 mmots 82bcf1def3b5 1c4160ef .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 17:06 mmots 82bcf1def3b5 1c4160ef .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 15:28 mmots 82bcf1def3b5 1c4160ef .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 13:51 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 08:56 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 07:46 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 04:04 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/18 01:43 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 21:18 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 20:01 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 16:19 mmots 82bcf1def3b5 d5beb42a .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 10:27 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 06:39 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 04:07 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/17 02:00 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 22:35 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 18:26 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 14:57 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 13:27 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 10:40 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 09:14 mmots 82bcf1def3b5 b6f0c91b .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 07:32 mmots 82bcf1def3b5 ac20b98c .config log report
ci-upstream-mmots-kasan-gce 2017/12/16 06:13 mmots 82bcf1def3b5 ac20b98c .config log report