INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-3,10.128.15.200' (ECDSA) to the list of known hosts. 2017/09/19 00:52:24 parsed 1 programs 2017/09/19 00:52:24 executed programs: 0 syzkaller login: [ 49.731202] ------------[ cut here ]------------ [ 49.732099] kernel BUG at net/packet/af_packet.c:1521! [ 49.732806] invalid opcode: 0000 [#1] SMP KASAN [ 49.733424] Dumping ftrace buffer: [ 49.733902] (ftrace buffer empty) [ 49.734415] Modules linked in: [ 49.734849] CPU: 1 PID: 3503 Comm: syz-executor5 Not tainted 4.13.0-mm1+ #7 [ 49.735778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.736998] task: ffff8801cbcee140 task.stack: ffff8801cbc48000 [ 49.737799] RIP: 0010:__unregister_prot_hook+0x139/0x280 [ 49.738518] RSP: 0018:ffff8801cbc4f700 EFLAGS: 00010297 [ 49.739228] RAX: ffff8801cbcee140 RBX: ffff8801cbcbd3c0 RCX: 0000000000000000 [ 49.740197] RDX: 0000000000000000 RSI: ffffffff84d438c1 RDI: ffff8801cc716688 [ 49.741148] RBP: ffff8801cbc4f740 R08: ffff8801cbc4f050 R09: ffff8801cbc4f048 [ 49.742102] R10: ffff8801cbc4efc0 R11: 1ffff1003979debb R12: ffff8801cc716680 [ 49.743056] R13: ffff8801cbcbd3c0 R14: 0000000000000000 R15: ffff8801cbc4fd70 [ 49.744009] FS: 00007f69aea96700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 49.745100] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.745891] CR2: 00007ffd40b2e848 CR3: 00000001cf150000 CR4: 00000000001406e0 [ 49.746845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.747811] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.748763] Call Trace: [ 49.749122] packet_set_ring+0xe7c/0x1b70 [ 49.749683] ? packet_poll+0x5c0/0x5c0 [ 49.750206] ? __might_fault+0xe0/0x1d0 [ 49.750744] ? lock_release+0xd70/0xd70 [ 49.751276] ? check_same_owner+0x320/0x320 [ 49.755277] ? __check_object_size+0x25d/0x4f0 [ 49.759829] ? __might_sleep+0x95/0x190 [ 49.763783] ? kasan_check_write+0x14/0x20 [ 49.767982] ? _copy_from_user+0x99/0x110 [ 49.772100] packet_setsockopt+0x6cd/0x1e80 [ 49.776395] ? fanout_add+0x1190/0x1190 [ 49.780334] ? lock_downgrade+0x990/0x990 [ 49.784450] ? __fget+0xbb/0x580 [ 49.787787] ? lock_release+0xd70/0xd70 [ 49.791726] ? __lock_is_held+0xbc/0x140 [ 49.795759] ? __fget+0x362/0x580 [ 49.799182] ? iterate_fd+0x3f0/0x3f0 [ 49.802952] ? find_held_lock+0x39/0x1d0 [ 49.806985] ? sock_has_perm+0x29c/0x400 [ 49.811011] ? __fget_light+0x29d/0x390 [ 49.814950] ? selinux_tun_dev_create+0xc0/0xc0 [ 49.819589] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 49.825264] ? selinux_netlbl_sock_rcv_skb+0x730/0x730 [ 49.830511] ? do_raw_spin_trylock+0x190/0x190 [ 49.835060] ? lock_release+0xd70/0xd70 [ 49.839001] ? selinux_socket_setsockopt+0x64/0x80 [ 49.843900] SyS_setsockopt+0x189/0x360 [ 49.847839] ? SyS_setsockopt+0x189/0x360 [ 49.851971] ? SyS_recv+0x40/0x40 [ 49.855404] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 49.860212] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.865194] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.869916] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 49.874635] RIP: 0033:0x451e59 [ 49.877788] RSP: 002b:00007f69aea95c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000036 [ 49.885459] RAX: ffffffffffffffda RBX: 00000000007180b0 RCX: 0000000000451e59 [ 49.892694] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000004 [ 49.899928] RBP: 0000000000000082 R08: 000000000000047e R09: 0000000000000000 [ 49.907168] R10: 0000000020001000 R11: 0000000000000216 R12: 0000000000000000 [ 49.914402] R13: 00007ffc1177121f R14: 00007f69aea969c0 R15: 0000000000000002 [ 49.921654] Code: 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 4e 01 00 00 4d 3b 6c c4 28 74 16 83 c3 01 e8 71 d8 2c fd 44 39 f3 75 cd e8 67 d8 2c fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 56 d8 2c fd 49 8d 7c dc [ 49.940718] RIP: __unregister_prot_hook+0x139/0x280 RSP: ffff8801cbc4f700 [ 49.947678] ---[ end trace 520de4ce9d5c559e ]--- [ 49.952420] Kernel panic - not syncing: Fatal exception [ 49.958067] Dumping ftrace buffer: [ 49.961573] (ftrace buffer empty) [ 49.965248] Kernel Offset: disabled [ 49.968839] Rebooting in 86400 seconds..