[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.730501] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.188697] random: sshd: uninitialized urandom read (32 bytes read) [ 25.660576] random: sshd: uninitialized urandom read (32 bytes read) [ 26.562594] random: sshd: uninitialized urandom read (32 bytes read) [ 148.957682] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. [ 154.657801] random: sshd: uninitialized urandom read (32 bytes read) [ 154.796586] IPVS: ftp: loaded support on port[0] = 21 [ 154.803615] IPVS: ftp: loaded support on port[0] = 21 [ 154.806863] IPVS: ftp: loaded support on port[0] = 21 [ 154.809299] IPVS: ftp: loaded support on port[0] = 21 [ 154.816668] IPVS: ftp: loaded support on port[0] = 21 [ 154.829680] IPVS: ftp: loaded support on port[0] = 21 [ 154.838374] IPVS: ftp: loaded support on port[0] = 21 [ 154.844632] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 160.798345] kasan: CONFIG_KASAN_INLINE enabled [ 160.803393] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 160.810846] general protection fault: 0000 [#1] SMP KASAN [ 160.816487] CPU: 1 PID: 5918 Comm: kworker/1:129 Not tainted 4.18.0-rc5+ #22 [ 160.823685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 160.833325] Workqueue: events smc_tcp_listen_work [ 160.838194] RIP: 0010:kernel_accept+0x34/0x310 executing program executing program executing program executing program executing program [ 160.842777] Code: d6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 11 31 8e fb 49 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b [ 160.862340] RSP: 0018:ffff8801d968f5a8 EFLAGS: 00010202 [ 160.867828] RAX: dffffc0000000000 RBX: ffff8801c2014ac0 RCX: 0000000000000000 [ 160.875110] RDX: 0000000000000004 RSI: ffffffff85edda6f RDI: 0000000000000020 [ 160.882395] RBP: ffff8801d968f5d8 R08: ffff8801b1d98df8 R09: 0000000000000006 [ 160.889703] R10: ffff8801b1d985c0 R11: 0000000000000000 R12: ffff8801d968f688 [ 160.897006] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d968f708 [ 160.904478] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 160.912886] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 160.919037] CR2: 000000000046eca0 CR3: 00000001ac466000 CR4: 00000000001406e0 [ 160.926304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 160.933581] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 160.940837] Call Trace: [ 160.943520] smc_tcp_listen_work+0x222/0xef0 [ 160.947925] ? smc_link_save_peer_info+0x320/0x320 [ 160.953115] ? __lock_is_held+0xb5/0x140 [ 160.957172] process_one_work+0xc73/0x1ba0 [ 160.961414] ? trace_hardirqs_on+0x10/0x10 [ 160.965777] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 160.970547] ? graph_lock+0x170/0x170 [ 160.974693] ? kasan_check_read+0x11/0x20 [ 160.978853] ? do_raw_spin_unlock+0xa7/0x2f0 [ 160.983271] ? graph_lock+0x170/0x170 [ 160.987064] ? do_raw_spin_lock+0xc1/0x200 [ 160.991298] ? lock_downgrade+0x8f0/0x8f0 [ 160.995530] ? kasan_check_read+0x11/0x20 [ 160.999780] ? do_raw_spin_unlock+0xa7/0x2f0 [ 161.004182] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 161.008754] ? kasan_check_write+0x14/0x20 [ 161.012974] ? do_raw_spin_lock+0xc1/0x200 [ 161.017194] ? trace_hardirqs_off+0xd/0x10 [ 161.021432] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 161.026520] ? __wake_up_common_lock+0x1d0/0x330 [ 161.031273] ? __wake_up_common+0x740/0x740 [ 161.035584] ? need_to_create_worker+0x1c8/0x280 [ 161.040338] ? del_timer+0x150/0x150 [ 161.044047] ? kasan_check_write+0x14/0x20 [ 161.048295] ? do_raw_spin_lock+0xc1/0x200 [ 161.052629] worker_thread+0x189/0x13c0 [ 161.056613] ? process_one_work+0x1ba0/0x1ba0 [ 161.061109] ? graph_lock+0x170/0x170 [ 161.064919] ? graph_lock+0x170/0x170 [ 161.069353] ? find_held_lock+0x36/0x1c0 [ 161.073435] ? find_held_lock+0x36/0x1c0 [ 161.077510] ? lock_downgrade+0x8f0/0x8f0 [ 161.081657] ? kasan_check_read+0x11/0x20 [ 161.085801] ? do_raw_spin_unlock+0xa7/0x2f0 [ 161.090387] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 161.095492] ? __kthread_parkme+0x58/0x1b0 executing program [ 161.099748] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 161.104759] ? trace_hardirqs_on+0xd/0x10 [ 161.108906] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 161.114464] ? __kthread_parkme+0x106/0x1b0 [ 161.118787] kthread+0x345/0x410 [ 161.122151] ? process_one_work+0x1ba0/0x1ba0 [ 161.126666] ? kthread_bind+0x40/0x40 [ 161.130477] ret_from_fork+0x3a/0x50 [ 161.134278] Modules linked in: [ 161.137474] Dumping ftrace buffer: [ 161.141088] (ftrace buffer empty) [ 161.145043] ---[ end trace 77550bda151db03a ]--- executing program executing program executing program executing program executing program executing program executing program executing program [ 161.149859] RIP: 0010:kernel_accept+0x34/0x310 [ 161.154491] Code: d6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 11 31 8e fb 49 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b [ 161.174714] RSP: 0018:ffff8801d968f5a8 EFLAGS: 00010202 [ 161.180154] RAX: dffffc0000000000 RBX: ffff8801c2014ac0 RCX: 0000000000000000 [ 161.187552] RDX: 0000000000000004 RSI: ffffffff85edda6f RDI: 0000000000000020 executing program executing program executing program executing program executing program executing program executing program executing program [ 161.194890] RBP: ffff8801d968f5d8 R08: ffff8801b1d98df8 R09: 0000000000000006 [ 161.202203] R10: ffff8801b1d985c0 R11: 0000000000000000 R12: ffff8801d968f688 [ 161.209579] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d968f708 [ 161.216981] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 161.225274] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 161.231227] CR2: 000000000046eca0 CR3: 0000000008e6a000 CR4: 00000000001406e0 [ 161.238737] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 161.246047] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 161.253413] Kernel panic - not syncing: Fatal exception [ 161.259355] Dumping ftrace buffer: [ 161.262909] (ftrace buffer empty) [ 161.266621] Kernel Offset: disabled [ 161.270242] Rebooting in 86400 seconds..