[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.636139] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.635007] random: sshd: uninitialized urandom read (32 bytes read) [ 25.003668] random: sshd: uninitialized urandom read (32 bytes read) [ 25.502782] random: sshd: uninitialized urandom read (32 bytes read) [ 36.288286] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.30' (ECDSA) to the list of known hosts. [ 41.890375] random: sshd: uninitialized urandom read (32 bytes read) 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 [ 42.088125] kasan: CONFIG_KASAN_INLINE enabled [ 42.092876] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.100446] general protection fault: 0000 [#1] SMP KASAN [ 42.105967] CPU: 0 PID: 4469 Comm: kworker/0:6 Not tainted 4.18.0-rc8+ #182 [ 42.113043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.122388] Workqueue: events smc_tcp_listen_work [ 42.127264] RIP: 0010:inet_accept+0xf2/0x9f0 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 [ 42.131734] 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 [ 42.150854] RSP: 0018:ffff8801b10c74b0 EFLAGS: 00010206 [ 42.156210] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 42.163466] RDX: dffffc0000000000 RSI: ffffffff858d8e26 RDI: 0000000000000028 [ 42.170724] RBP: ffff8801b10c7598 R08: ffff8801b0b26200 R09: ffffed003572d0a7 [ 42.177977] R10: ffffed003572d0a7 R11: ffff8801ab96853b R12: ffff8801ab968480 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 [ 42.185230] R13: ffff8801b10c74f0 R14: ffff8801b10c7570 R15: 0000000000000000 [ 42.192485] FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 42.200689] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.206561] CR2: 0000000020000040 CR3: 0000000007e6a000 CR4: 00000000001406f0 [ 42.213814] Call Trace: [ 42.216409] ? prune_icache_sb+0x1b0/0x1b0 [ 42.220626] ? inet_recvmsg+0x6d0/0x6d0 [ 42.224673] ? trace_hardirqs_on+0xd/0x10 [ 42.228806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.234329] ? get_next_ino+0x8b/0x110 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 [ 42.238207] ? security_socket_post_create+0x9f/0xd0 [ 42.243293] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.248835] ? sock_create_lite+0x4d/0x130 [ 42.253059] ? inet_recvmsg+0x6d0/0x6d0 [ 42.257018] kernel_accept+0x136/0x310 [ 42.260893] smc_tcp_listen_work+0x218/0x1150 [ 42.265373] ? smc_link_save_peer_info+0x320/0x320 [ 42.270298] ? __lock_is_held+0xb5/0x140 [ 42.274543] process_one_work+0xc73/0x1ba0 [ 42.278764] ? trace_hardirqs_on+0x10/0x10 [ 42.282984] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 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 [ 42.287709] ? graph_lock+0x170/0x170 [ 42.291496] ? kasan_check_read+0x11/0x20 [ 42.295627] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.300021] ? graph_lock+0x170/0x170 [ 42.303808] ? do_raw_spin_lock+0xc1/0x200 [ 42.308025] ? lock_downgrade+0x8f0/0x8f0 [ 42.312164] ? kasan_check_read+0x11/0x20 [ 42.316309] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.320707] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 42.325280] ? kasan_check_write+0x14/0x20 [ 42.329497] ? do_raw_spin_lock+0xc1/0x200 [ 42.333712] ? trace_hardirqs_off+0xd/0x10 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 [ 42.337925] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 42.343005] ? __wake_up_common_lock+0x1d0/0x330 [ 42.347738] ? __wake_up_common+0x740/0x740 [ 42.352042] ? need_to_create_worker+0x1c8/0x280 [ 42.356787] ? del_timer+0x150/0x150 [ 42.360484] ? kasan_check_write+0x14/0x20 [ 42.364741] ? do_raw_spin_lock+0xc1/0x200 [ 42.368969] worker_thread+0x189/0x13c0 [ 42.372930] ? process_one_work+0x1ba0/0x1ba0 [ 42.377405] ? graph_lock+0x170/0x170 [ 42.381192] ? __sched_text_start+0x8/0x8 [ 42.385324] ? graph_lock+0x170/0x170 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 [ 42.389105] ? find_held_lock+0x36/0x1c0 [ 42.393153] ? find_held_lock+0x36/0x1c0 [ 42.397262] ? lock_downgrade+0x8f0/0x8f0 [ 42.401400] ? kasan_check_read+0x11/0x20 [ 42.405526] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.409913] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 42.414992] ? __kthread_parkme+0x58/0x1b0 [ 42.419212] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.424210] ? trace_hardirqs_on+0xd/0x10 [ 42.428339] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 42.433859] ? __kthread_parkme+0x106/0x1b0 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 [ 42.438158] kthread+0x345/0x410 [ 42.441505] ? process_one_work+0x1ba0/0x1ba0 [ 42.445977] ? kthread_bind+0x40/0x40 [ 42.449754] ret_from_fork+0x3a/0x50 [ 42.453442] Modules linked in: [ 42.456675] Dumping ftrace buffer: [ 42.460200] (ftrace buffer empty) [ 42.463971] ---[ end trace 26f43a329fbeccad ]--- [ 42.468737] RIP: 0010:inet_accept+0xf2/0x9f0 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 [ 42.473148] 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 [ 42.492316] RSP: 0018:ffff8801b10c74b0 EFLAGS: 00010206 [ 42.497693] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000005 [ 42.504979] RDX: dffffc0000000000 RSI: ffffffff858d8e26 RDI: 0000000000000028 [ 42.512257] RBP: ffff8801b10c7598 R08: ffff8801b0b26200 R09: ffffed003572d0a7 [ 42.519543] R10: ffffed003572d0a7 R11: ffff8801ab96853b R12: ffff8801ab968480 [ 42.526951] R13: ffff8801b10c74f0 R14: ffff8801b10c7570 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program [ 42.534681] FS: 0000000000000000(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 42.542903] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.548792] CR2: 0000000020000040 CR3: 0000000007e6a000 CR4: 00000000001406f0 [ 42.556116] Kernel panic - not syncing: Fatal exception [ 42.561814] Dumping ftrace buffer: [ 42.565333] (ftrace buffer empty) [ 42.569021] Kernel Offset: disabled [ 42.572629] Rebooting in 86400 seconds..