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-2,10.128.0.62' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 38.743684] dev_remove_pack: ffff8801ce00d1c0 not found executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 40.482959] BUG: spinlock bad magic on CPU#1, syzkaller127419/4959 [ 40.489333] lock: 0xffff8801ce0f0da8, .magic: ffff8801, .owner: syzkaller127419/4959, .owner_cpu: 1 [ 40.498628] CPU: 1 PID: 4959 Comm: syzkaller127419 Not tainted 4.13.0-mm1+ #7 [ 40.505867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.515185] Call Trace: [ 40.517745] dump_stack+0x194/0x257 [ 40.521339] ? arch_local_irq_restore+0x53/0x53 [ 40.525976] ? lock_downgrade+0x990/0x990 [ 40.530090] spin_dump+0x14d/0x280 [ 40.533598] do_raw_spin_unlock+0x2bd/0x330 [ 40.537883] ? do_raw_spin_trylock+0x190/0x190 [ 40.542436] ? __dev_remove_pack+0x279/0x3b0 [ 40.546814] _raw_spin_unlock+0x22/0x30 [ 40.550755] __fanout_link+0xaf/0xf0 [ 40.554449] fanout_add+0x88b/0x1190 [ 40.558136] ? pgtable_trans_huge_deposit+0x342/0x6d0 [ 40.563293] ? packet_release+0xd70/0xd70 [ 40.567402] ? do_raw_spin_trylock+0x190/0x190 [ 40.571960] ? find_held_lock+0x39/0x1d0 [ 40.575991] ? lock_downgrade+0x990/0x990 [ 40.580109] ? __might_fault+0xe0/0x1d0 [ 40.584050] ? lock_release+0xd70/0xd70 [ 40.587988] ? check_same_owner+0x320/0x320 [ 40.592278] ? __might_sleep+0x95/0x190 [ 40.596220] ? kasan_check_write+0x14/0x20 [ 40.600421] ? _copy_from_user+0x99/0x110 [ 40.604532] packet_setsockopt+0xfdc/0x1e80 [ 40.608819] ? fanout_add+0x1190/0x1190 [ 40.612756] ? lock_downgrade+0x990/0x990 [ 40.616870] ? __fget+0xbb/0x580 [ 40.620204] ? lock_release+0xd70/0xd70 [ 40.624142] ? __lock_is_held+0xbc/0x140 [ 40.628172] ? __fget+0x362/0x580 [ 40.631592] ? iterate_fd+0x3f0/0x3f0 [ 40.635356] ? lock_downgrade+0x990/0x990 [ 40.639478] ? sock_has_perm+0x29c/0x400 [ 40.643499] ? __fget_light+0x29d/0x390 [ 40.647438] ? selinux_tun_dev_create+0xc0/0xc0 [ 40.652072] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 40.657745] ? selinux_netlbl_sock_rcv_skb+0x730/0x730 [ 40.662990] ? selinux_socket_setsockopt+0x64/0x80 [ 40.667893] SyS_setsockopt+0x189/0x360 [ 40.671831] ? SyS_setsockopt+0x189/0x360 [ 40.675945] ? SyS_recv+0x40/0x40 [ 40.679363] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 40.684171] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.689153] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 40.693876] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 40.698593] RIP: 0033:0x446239 [ 40.701748] RSP: 002b:00007fd37e186dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 [ 40.709429] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446239 [ 40.716663] RDX: 0000000000000012 RSI: 0000000000000107 RDI: 000000000000007b [ 40.723900] RBP: 0000000000000082 R08: 0000000000000004 R09: 00007fd37e187700 executing program executing program executing program executing program executing program executing program executing program [ 40.731142] R10: 00000000201ef000 R11: 0000000000000202 R12: 0000000000000000 [ 40.738375] R13: 00007ffca66f840f R14: 00007fd37e1879c0 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program