[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.833903] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.817168] random: sshd: uninitialized urandom read (32 bytes read) [ 25.147998] random: sshd: uninitialized urandom read (32 bytes read) [ 26.021136] random: sshd: uninitialized urandom read (32 bytes read) [ 26.183763] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. [ 31.640536] random: sshd: uninitialized urandom read (32 bytes read) 2018/07/19 14:44:38 parsed 1 programs [ 33.410816] random: cc1: uninitialized urandom read (8 bytes read) 2018/07/19 14:44:42 executed programs: 0 [ 35.483439] IPVS: ftp: loaded support on port[0] = 21 [ 35.683928] kasan: CONFIG_KASAN_INLINE enabled [ 35.688801] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.696214] general protection fault: 0000 [#1] SMP KASAN [ 35.701750] CPU: 0 PID: 4573 Comm: kworker/0:4 Not tainted 4.18.0-rc5+ #57 [ 35.708752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.718110] Workqueue: events smc_tcp_listen_work [ 35.722967] RIP: 0010:inet_accept+0xf2/0x9f0 [ 35.727358] Code: 84 d2 74 09 80 fa 03 0f 8e 93 07 00 00 48 8d 78 28 41 c7 46 80 ea ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 94 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b [ 35.746601] RSP: 0018:ffff8801d93974b0 EFLAGS: 00010206 [ 35.751965] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 35.759231] RDX: dffffc0000000000 RSI: ffffffff867516c6 RDI: 0000000000000028 [ 35.766496] RBP: ffff8801d9397598 R08: ffff8801adcde0c0 R09: ffffed003517482f [ 35.773766] R10: ffffed003517482f R11: ffff8801a8ba417b R12: ffff8801a8ba40c0 [ 35.781034] R13: ffff8801d93974f0 R14: ffff8801d9397570 R15: 0000000000000000 [ 35.788306] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 35.796526] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.802405] CR2: 0000000008350031 CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 35.809672] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.816940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.824208] Call Trace: [ 35.826801] ? prune_icache_sb+0x1b0/0x1b0 [ 35.831040] ? inet_recvmsg+0x6d0/0x6d0 [ 35.835012] ? trace_hardirqs_on+0xd/0x10 [ 35.839160] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.844690] ? get_next_ino+0x8b/0x110 [ 35.848568] ? security_socket_post_create+0x9f/0xd0 [ 35.853690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.859224] ? sock_create_lite+0x4d/0x130 [ 35.863456] ? inet_recvmsg+0x6d0/0x6d0 [ 35.867431] kernel_accept+0x136/0x310 [ 35.871319] smc_tcp_listen_work+0x222/0xef0 [ 35.875725] ? smc_link_save_peer_info+0x320/0x320 [ 35.880652] ? __lock_is_held+0xb5/0x140 [ 35.884720] process_one_work+0xc73/0x1ba0 [ 35.888951] ? trace_hardirqs_on+0x10/0x10 [ 35.893187] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 35.897854] ? lock_repin_lock+0x430/0x430 [ 35.902088] ? __sched_text_start+0x8/0x8 [ 35.906271] ? lock_downgrade+0x8f0/0x8f0 [ 35.910420] ? graph_lock+0x170/0x170 [ 35.914221] ? graph_lock+0x170/0x170 [ 35.918031] ? lock_acquire+0x1e4/0x540 [ 35.922000] ? worker_thread+0x3dc/0x13c0 [ 35.926147] ? lock_downgrade+0x8f0/0x8f0 [ 35.930297] ? lock_release+0xa30/0xa30 [ 35.934282] ? kasan_check_read+0x11/0x20 [ 35.938454] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.942862] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 35.947448] ? kasan_check_write+0x14/0x20 [ 35.951681] ? do_raw_spin_lock+0xc1/0x200 [ 35.955920] worker_thread+0x189/0x13c0 [ 35.959897] ? process_one_work+0x1ba0/0x1ba0 [ 35.964395] ? graph_lock+0x170/0x170 [ 35.968194] ? graph_lock+0x170/0x170 [ 35.971998] ? find_held_lock+0x36/0x1c0 [ 35.976062] ? find_held_lock+0x36/0x1c0 [ 35.980133] ? lock_downgrade+0x8f0/0x8f0 [ 35.984289] ? kasan_check_read+0x11/0x20 [ 35.988436] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.992848] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 35.997952] ? __kthread_parkme+0x58/0x1b0 [ 36.002201] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.007217] ? trace_hardirqs_on+0xd/0x10 [ 36.011365] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 36.016900] ? __kthread_parkme+0x106/0x1b0 [ 36.021231] kthread+0x345/0x410 [ 36.024597] ? process_one_work+0x1ba0/0x1ba0 [ 36.029091] ? kthread_bind+0x40/0x40 [ 36.032902] ret_from_fork+0x3a/0x50 [ 36.036609] Modules linked in: [ 36.039799] Dumping ftrace buffer: [ 36.043330] (ftrace buffer empty) [ 36.047132] ---[ end trace 99066b32c3785fe4 ]--- [ 36.051916] RIP: 0010:inet_accept+0xf2/0x9f0 [ 36.056334] Code: 84 d2 74 09 80 fa 03 0f 8e 93 07 00 00 48 8d 78 28 41 c7 46 80 ea ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 94 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b [ 36.075587] RSP: 0018:ffff8801d93974b0 EFLAGS: 00010206 [ 36.080977] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 36.088266] RDX: dffffc0000000000 RSI: ffffffff867516c6 RDI: 0000000000000028 [ 36.095568] RBP: ffff8801d9397598 R08: ffff8801adcde0c0 R09: ffffed003517482f [ 36.102861] R10: ffffed003517482f R11: ffff8801a8ba417b R12: ffff8801a8ba40c0 [ 36.110160] R13: ffff8801d93974f0 R14: ffff8801d9397570 R15: 0000000000000000 [ 36.117458] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 36.125718] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.131628] CR2: 0000000008350031 CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 36.138924] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.146264] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.153568] Kernel panic - not syncing: Fatal exception [ 36.159494] Dumping ftrace buffer: [ 36.163032] (ftrace buffer empty) [ 36.166719] Kernel Offset: disabled [ 36.170337] Rebooting in 86400 seconds..