[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 13.723618] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.759180] random: sshd: uninitialized urandom read (32 bytes read) [ 18.262188] random: sshd: uninitialized urandom read (32 bytes read) [ 19.132112] random: sshd: uninitialized urandom read (32 bytes read) [ 73.129028] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts. [ 78.622325] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 95.556131] kasan: CONFIG_KASAN_INLINE enabled [ 95.560802] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 95.568185] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 95.574444] Dumping ftrace buffer: [ 95.577988] (ftrace buffer empty) [ 95.581707] Modules linked in: [ 95.585033] CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 4.9.112-g9e79039 #7 [ 95.592366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.601736] Workqueue: events p9_poll_workfn [ 95.606272] task: ffff8801d9aec800 task.stack: ffff8801d9428000 [ 95.612333] RIP: 0010:[] [] __lock_acquire+0xa1b/0x4070 [ 95.621067] RSP: 0018:ffff8801d942f8e0 EFLAGS: 00010006 [ 95.626523] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 95.633810] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 [ 95.641091] RBP: ffff8801d942fa90 R08: 0000000000000001 R09: 0000000000000001 [ 95.648366] R10: ffff8801d9aec800 R11: 0000000000000001 R12: 0000000000000001 [ 95.655647] R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000 [ 95.662918] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 95.671137] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.677021] CR2: 000000000046b5d0 CR3: 00000001cc939000 CR4: 00000000001606f0 [ 95.684300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.691572] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.698821] Stack: [ 95.700949] 0000000041b58ab3 ffff8801d9aed0f0 0000000000000002 0000000000000001 [ 95.708972] 0000000000000000 ffff8801d9aed112 ffff8801d942fad0 0000000000000046 [ 95.716982] 0000000000000000 ffff8801d9aed0ea ffff8801d942fae8 0000000000000046 [ 95.724992] Call Trace: [ 95.727565] [] ? debug_check_no_locks_freed+0x210/0x210 [ 95.734554] [] ? debug_check_no_locks_freed+0x210/0x210 [ 95.741546] [] ? mark_held_locks+0xc7/0x130 [ 95.747513] [] ? retint_kernel+0x2d/0x2d [ 95.753212] [] ? generic_pipe_buf_confirm+0x10/0x10 [ 95.759878] [] lock_acquire+0x130/0x3e0 [ 95.765504] [] ? p9_conn_cancel+0xaa/0x4c0 [ 95.771379] [] _raw_spin_lock_irqsave+0x4e/0x62 [ 95.777678] [] ? p9_conn_cancel+0xaa/0x4c0 [ 95.783543] [] p9_conn_cancel+0xaa/0x4c0 [ 95.789234] [] ? pipe_poll+0x46/0x2d0 [ 95.794688] [] ? p9_pollwake+0x110/0x110 [ 95.800413] [] ? pipe_poll+0x25c/0x2d0 [ 95.805975] [] ? p9_fd_poll+0x246/0x310 [ 95.811628] [] p9_poll_workfn+0x222/0x330 [ 95.817449] [] process_one_work+0x7e1/0x1500 [ 95.823509] [] ? process_one_work+0x728/0x1500 [ 95.829738] [] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 95.836244] [] worker_thread+0xd6/0x10a0 [ 95.843442] [] ? __schedule+0x655/0x1bd0 [ 95.849167] [] kthread+0x26d/0x300 [ 95.854382] [] ? process_one_work+0x1500/0x1500 [ 95.860714] [] ? kthread_park+0xa0/0xa0 [ 95.866362] [] ? kthread_park+0xa0/0xa0 [ 95.872006] [] ? kthread_park+0xa0/0xa0 [ 95.877637] [] ret_from_fork+0x5c/0x70 [ 95.883171] Code: 25 28 00 00 00 0f 85 17 27 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 51 27 00 00 49 81 3e a0 8c e9 84 0f 84 08 f7 [ 95.910400] RIP [] __lock_acquire+0xa1b/0x4070 [ 95.916761] RSP [ 95.920381] ---[ end trace e63856aea98d1302 ]--- [ 95.925134] Kernel panic - not syncing: Fatal exception [ 95.930963] Dumping ftrace buffer: [ 95.934488] (ftrace buffer empty) [ 95.938178] Kernel Offset: disabled [ 95.941784] Rebooting in 86400 seconds..