[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.435321] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.351306] random: sshd: uninitialized urandom read (32 bytes read) [ 23.602199] random: sshd: uninitialized urandom read (32 bytes read) [ 24.348159] random: sshd: uninitialized urandom read (32 bytes read) [ 50.824066] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. [ 56.279688] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 90.210399] [ 90.212096] ================================ [ 90.216503] WARNING: inconsistent lock state [ 90.220908] 4.17.0-rc2+ #18 Not tainted [ 90.224872] -------------------------------- [ 90.229281] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 90.235424] sshd/4526 [HC1[1]:SC1[1]:HE0:SE0] takes: [ 90.240516] (ptrval) (fs_reclaim){?.+.}, at: fs_reclaim_acquire.part.82+0x0/0x30 [ 90.248767] {HARDIRQ-ON-W} state was registered at: [ 90.253796] lock_acquire+0x1dc/0x520 [ 90.257712] fs_reclaim_acquire.part.82+0x24/0x30 [ 90.262651] fs_reclaim_acquire+0x14/0x20 [ 90.266893] kmem_cache_alloc_node_trace+0x39/0x770 [ 90.272005] alloc_worker+0xbd/0x2e0 [ 90.275818] init_rescuer.part.25+0x1f/0x190 [ 90.280315] workqueue_init+0x51f/0x7d0 [ 90.284386] kernel_init_freeable+0x2ad/0x58e [ 90.288983] kernel_init+0x11/0x1b3 [ 90.292692] ret_from_fork+0x3a/0x50 [ 90.296479] irq event stamp: 471835 [ 90.300107] hardirqs last enabled at (471834): [] kfree+0x111/0x260 [ 90.308161] hardirqs last disabled at (471835): [] interrupt_entry+0xb5/0xf0 [ 90.316914] softirqs last enabled at (471810): [] ip_finish_output2+0xa7f/0x1840 [ 90.326125] softirqs last disabled at (471811): [] do_softirq_own_stack+0x2a/0x40 [ 90.335326] [ 90.335326] other info that might help us debug this: [ 90.341999] Possible unsafe locking scenario: [ 90.341999] [ 90.348056] CPU0 [ 90.350641] ---- [ 90.353235] lock(fs_reclaim); [ 90.356510] [ 90.359354] lock(fs_reclaim); [ 90.362801] [ 90.362801] *** DEADLOCK *** [ 90.362801] [ 90.368866] 3 locks held by sshd/4526: [ 90.372754] #0: (ptrval) (sk_lock-AF_INET){+.+.}, at: tcp_sendmsg+0x21/0x50 [ 90.380671] #1: (ptrval) (rcu_read_lock){....}, at: ip_queue_xmit+0xa1/0x1f70 [ 90.388747] #2: (ptrval) (rcu_callback){....}, at: rcu_process_callbacks+0xa2c/0x15f0 [ 90.397523] [ 90.397523] stack backtrace: [ 90.402028] CPU: 1 PID: 4526 Comm: sshd Not tainted 4.17.0-rc2+ #18 [ 90.408429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.417780] Call Trace: [ 90.420369] [ 90.422527] dump_stack+0x1b9/0x294 [ 90.426164] ? dump_stack_print_info.cold.2+0x52/0x52 [ 90.431362] ? print_lock+0xd1/0xd6 [ 90.434997] ? vprintk_func+0x81/0xe7 [ 90.438801] print_usage_bug.cold.59+0x320/0x41a [ 90.443556] ? save_stack_trace+0x1a/0x20 [ 90.447705] mark_lock+0x1034/0x19e0 [ 90.451419] ? check_usage_backwards+0x3a0/0x3a0 [ 90.456182] ? print_usage_bug+0xc0/0xc0 [ 90.460258] ? check_usage_backwards+0x3a0/0x3a0 [ 90.465014] ? print_usage_bug+0xc0/0xc0 [ 90.469079] ? mark_lock+0xafe/0x19e0 [ 90.472887] ? check_usage_backwards+0x3a0/0x3a0 [ 90.477643] ? print_usage_bug+0xc0/0xc0 [ 90.481705] ? update_curr+0x4d5/0xbe0 [ 90.485607] __lock_acquire+0x1595/0x5140 [ 90.489778] ? __lock_acquire+0x7f5/0x5140 [ 90.494022] ? find_held_lock+0x36/0x1c0 [ 90.498088] ? debug_check_no_locks_freed+0x310/0x310 [ 90.503303] ? debug_check_no_locks_freed+0x310/0x310 [ 90.508506] ? debug_check_no_locks_freed+0x310/0x310 [ 90.513699] ? lock_downgrade+0x8e0/0x8e0 [ 90.517851] ? sha_transform+0x26/0x4449 [ 90.521932] ? kasan_check_read+0x11/0x20 [ 90.526118] ? do_raw_spin_unlock+0x9e/0x2e0 [ 90.530525] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 90.535112] ? memset+0x31/0x40 [ 90.538397] ? memzero_explicit+0xe/0x10 [ 90.542456] ? extract_buf+0x3a3/0x4c0 [ 90.546343] ? graph_lock+0x170/0x170 [ 90.550152] ? crng_fast_load+0x3b0/0x3b0 [ 90.554306] ? graph_lock+0x170/0x170 [ 90.558113] ? account.constprop.30+0x34e/0x700 [ 90.562784] lock_acquire+0x1dc/0x520 [ 90.566583] ? bad_range+0x160/0x160 [ 90.570294] ? lock_release+0xa10/0xa10 [ 90.574278] ? lock_downgrade+0x8e0/0x8e0 [ 90.578426] ? lock_release+0xa10/0xa10 [ 90.582398] ? lock_downgrade+0x8e0/0x8e0 [ 90.586543] fs_reclaim_acquire.part.82+0x24/0x30 [ 90.591384] ? bad_range+0x160/0x160 [ 90.595113] fs_reclaim_acquire+0x14/0x20 [ 90.599265] __kmalloc+0x45/0x760 [ 90.602715] ? trace_hardirqs_off+0xd/0x10 [ 90.607055] ? _raw_write_unlock_irqrestore+0x63/0xc0 [ 90.612255] ? crng_reseed+0x427/0x920 [ 90.617273] crng_reseed+0x427/0x920 [ 90.620995] ? _extract_entropy.constprop.32+0x150/0x150 [ 90.626447] ? __lock_is_held+0xb5/0x140 [ 90.630512] credit_entropy_bits+0x98d/0xa30 [ 90.634930] ? add_interrupt_randomness+0x494/0x860 [ 90.639968] ? crng_reseed+0x920/0x920 [ 90.643865] ? lock_downgrade+0x8e0/0x8e0 [ 90.648015] ? __mix_pool_bytes+0xde/0x400 [ 90.652259] ? kasan_check_read+0x11/0x20 [ 90.656426] ? do_raw_spin_unlock+0x9e/0x2e0 [ 90.660877] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 90.665470] ? __handle_irq_event_percpu+0x34d/0xad0 [ 90.670594] add_interrupt_randomness+0x494/0x860 [ 90.675450] ? extract_entropy.constprop.29+0x490/0x490 [ 90.680818] ? lock_downgrade+0x8e0/0x8e0 [ 90.684972] ? handle_edge_irq+0x30/0x870 [ 90.689134] handle_irq_event_percpu+0xf9/0x1c0 [ 90.693806] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 90.698388] ? __handle_irq_event_percpu+0xad0/0xad0 [ 90.703507] ? __kasan_slab_free+0x11a/0x170 [ 90.707930] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.713471] handle_irq_event+0xa7/0x135 [ 90.717531] handle_edge_irq+0x20f/0x870 [ 90.721595] handle_irq+0x18c/0x2e7 [ 90.725222] do_IRQ+0x78/0x190 [ 90.728410] common_interrupt+0xf/0xf [ 90.732210] RIP: 0010:kfree+0x124/0x260 [ 90.736175] RSP: 0018:ffff8801daf07b70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffd8 [ 90.743973] RAX: 0000000000000007 RBX: ffff8801cf2c6540 RCX: 1ffff10035a79deb [ 90.751250] RDX: 0000000000000000 RSI: ffff8801ad3cef88 RDI: 0000000000000286 [ 90.758527] RBP: ffff8801daf07b90 R08: ffff8801ad3cef38 R09: 0000000000000002 [ 90.765797] R10: ffff8801ad3ce700 R11: 0000000000000000 R12: 0000000000000286 [ 90.773066] R13: ffff8801da800640 R14: ffffffff8164dc89 R15: ffff8801daf07dd8 [ 90.780345] ? common_interrupt+0xa/0xf [ 90.784327] ? rcu_process_callbacks+0xa69/0x15f0 [ 90.789184] rcu_process_callbacks+0xa69/0x15f0 [ 90.793861] ? call_rcu_sched+0x20/0x20 [ 90.797839] ? kvm_clock_read+0x25/0x30 [ 90.801818] ? print_usage_bug+0xc0/0xc0 [ 90.805884] ? ktime_get+0x2d9/0x430 [ 90.809600] ? graph_lock+0x170/0x170 [ 90.813411] ? do_gettimeofday+0x170/0x170 [ 90.817642] ? lock_downgrade+0x8e0/0x8e0 [ 90.821797] ? ktime_get_update_offsets_now+0x3a6/0x570 [ 90.827170] ? __lock_is_held+0xb5/0x140 [ 90.831241] __do_softirq+0x2e0/0xaf5 [ 90.835052] ? __irqentry_text_end+0x1f98a8/0x1f98a8 [ 90.840155] ? irq_exit+0xbb/0x200 [ 90.843696] ? smp_apic_timer_interrupt+0x17e/0x710 [ 90.848723] ? smp_call_function_single_interrupt+0x650/0x650 [ 90.854618] ? _raw_spin_lock+0x32/0x40 [ 90.858595] ? _raw_spin_unlock+0x22/0x30 [ 90.862740] ? handle_edge_irq+0x330/0x870 [ 90.866978] ? task_prio+0x50/0x50 [ 90.870520] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 90.875361] do_softirq_own_stack+0x2a/0x40 [ 90.879670] [ 90.881911] do_softirq.part.17+0x14d/0x190 [ 90.886247] ? ip_finish_output2+0xa7f/0x1840 [ 90.890753] __local_bh_enable_ip+0x1ec/0x230 [ 90.895261] ip_finish_output2+0xab2/0x1840 [ 90.899585] ? trace_hardirqs_on+0xd/0x10 [ 90.903732] ? ip_copy_metadata+0xa90/0xa90 [ 90.908076] ? graph_lock+0x170/0x170 [ 90.911875] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.917410] ? ipv4_mtu+0x375/0x580 [ 90.921036] ? __lock_is_held+0xb5/0x140 [ 90.925099] ip_finish_output+0x828/0xf80 [ 90.929251] ? ip_finish_output+0x828/0xf80 [ 90.933583] ? ip_fragment.constprop.49+0x240/0x240 [ 90.938603] ? kasan_check_read+0x11/0x20 [ 90.942753] ? rcu_is_watching+0x85/0x140 [ 90.946904] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 90.952103] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 90.957132] ? nf_hook_slow+0x11e/0x1c0 [ 90.961114] ip_output+0x21b/0x850 [ 90.964666] ? __ip_local_out+0x5cf/0xb20 [ 90.968822] ? ip_mc_output+0x15a0/0x15a0 [ 90.972973] ? ip_fragment.constprop.49+0x240/0x240 [ 90.977993] ip_local_out+0xc5/0x1b0 [ 90.981705] ip_queue_xmit+0x9d7/0x1f70 [ 90.985684] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 90.991224] ? ip_build_and_send_pkt+0xc70/0xc70 [ 90.995987] ? __tcp_v4_send_check+0x1d/0x1d0 [ 91.000480] ? tcp_options_write+0x29f/0xa70 [ 91.004898] tcp_transmit_skb+0x1bd2/0x3d40 [ 91.009241] ? __tcp_select_window+0x9e0/0x9e0 [ 91.013841] ? kernel_text_address+0x79/0xf0 [ 91.018249] ? __unwind_start+0x166/0x330 [ 91.022396] ? __kernel_text_address+0xd/0x40 [ 91.026891] ? unwind_get_return_address+0x61/0xa0 [ 91.031828] ? __lock_acquire+0x7f5/0x5140 [ 91.036077] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 91.041096] ? tcp_small_queue_check.isra.25+0x352/0x470 [ 91.046548] ? tcp_rtx_synack+0x6f0/0x6f0 [ 91.050699] ? __alloc_skb+0x14d/0x780 [ 91.054590] ? sk_stream_alloc_skb+0x139/0x960 [ 91.059185] ? tcp_sendmsg_locked+0xe9f/0x3e10 [ 91.063767] ? tcp_sendmsg+0x2f/0x50 [ 91.067481] ? inet_sendmsg+0x19f/0x690 [ 91.071455] ? sock_sendmsg+0xd5/0x120 [ 91.075351] ? sock_write_iter+0x35a/0x5a0 [ 91.079589] ? __vfs_write+0x64d/0x960 [ 91.083477] ? kvm_clock_read+0x25/0x30 [ 91.087454] ? kvm_sched_clock_read+0x9/0x20 [ 91.091862] ? kasan_check_read+0x11/0x20 [ 91.096009] ? do_raw_spin_unlock+0x9e/0x2e0 [ 91.100417] tcp_write_xmit+0x9e1/0x5bf0 [ 91.104480] ? tcp_transmit_skb+0x3d40/0x3d40 [ 91.108976] ? graph_lock+0x170/0x170 [ 91.112776] ? __kmalloc_node_track_caller+0x47/0x70 [ 91.117886] ? find_held_lock+0x36/0x1c0 [ 91.121961] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 91.126987] ? iov_iter_advance+0x2e4/0x14c0 [ 91.131403] ? check_same_owner+0x320/0x320 [ 91.135731] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.141274] __tcp_push_pending_frames+0xb2/0x290 [ 91.146123] ? kasan_check_write+0x14/0x20 [ 91.150359] tcp_push+0x5f1/0x860 [ 91.153817] ? skb_entail+0x8a0/0x8a0 [ 91.157625] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 91.162639] ? iov_iter_advance+0x14c0/0x14c0 [ 91.167140] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 91.172678] ? tcp_tx_timestamp+0x237/0x2d0 [ 91.177001] tcp_sendmsg_locked+0x318b/0x3e10 [ 91.181499] ? debug_check_no_locks_freed+0x310/0x310 [ 91.186693] ? tcp_sendpage+0x60/0x60 [ 91.190495] ? print_usage_bug+0xc0/0xc0 [ 91.194559] ? debug_check_no_locks_freed+0x310/0x310 [ 91.199749] ? print_usage_bug+0xc0/0xc0 [ 91.203811] ? find_held_lock+0x36/0x1c0 [ 91.207874] ? lock_acquire+0x1dc/0x520 [ 91.211861] ? tcp_sendmsg+0x21/0x50 [ 91.215585] ? mark_held_locks+0xc9/0x160 [ 91.219755] ? __local_bh_enable_ip+0x161/0x230 [ 91.224432] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 91.229452] ? lock_sock_nested+0x9f/0x120 [ 91.233700] ? trace_hardirqs_on+0xd/0x10 [ 91.237856] ? __local_bh_enable_ip+0x161/0x230 [ 91.242527] ? lock_sock_nested+0xe7/0x120 [ 91.246760] tcp_sendmsg+0x2f/0x50 [ 91.250303] inet_sendmsg+0x19f/0x690 [ 91.254108] ? ipip_gro_receive+0x100/0x100 [ 91.258443] ? security_socket_sendmsg+0x94/0xc0 [ 91.263198] ? ipip_gro_receive+0x100/0x100 [ 91.267524] sock_sendmsg+0xd5/0x120 [ 91.271242] sock_write_iter+0x35a/0x5a0 [ 91.275314] ? sock_sendmsg+0x120/0x120 [ 91.279292] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.284857] ? iov_iter_init+0xc9/0x1f0 [ 91.288839] __vfs_write+0x64d/0x960 [ 91.292552] ? kernel_read+0x120/0x120 [ 91.296439] ? do_raw_spin_unlock+0x9e/0x2e0 [ 91.300847] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 91.305430] ? _raw_spin_unlock_irq+0x27/0x70 [ 91.309941] ? trace_hardirqs_on+0xd/0x10 [ 91.314091] ? _raw_spin_unlock_irq+0x27/0x70 [ 91.318585] ? rw_verify_area+0x118/0x360 [ 91.322738] vfs_write+0x1f8/0x560 [ 91.326288] ksys_write+0xf9/0x250 [ 91.329830] ? __ia32_sys_read+0xb0/0xb0 [ 91.333897] __x64_sys_write+0x73/0xb0 [ 91.337793] do_syscall_64+0x1b1/0x800 [ 91.341690] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 91.346538] ? syscall_return_slowpath+0x5c0/0x5c0 [ 91.351465] ? syscall_return_slowpath+0x30f/0x5c0 [ 91.356397] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 91.361768] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.366612] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.371796] RIP: 0033:0x7f4651f94370 [ 91.375501] RSP: 002b:00007fff58c3b088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 91.383215] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f4651f94370 [ 91.390491] RDX: 0000000000000038 RSI: 00005604a319c420 RDI: 0000000000000003 [ 91.397764] RBP: 00005604a319c420 R08: 0000000000000001 R09: 0101010101010101 [ 91.405019] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fff58c3b0ec [ 91.412271] R13: 00005604a1e6cfb4 R14: 0000000000000028 R15: 00005604a1e6eca0 [ 91.419531] BUG: sleeping function called from invalid context at mm/slab.h:421 [ 91.426959] in_atomic(): 1, irqs_disabled(): 1, pid: 4526, name: sshd [ 91.433523] INFO: lockdep is turned off. [ 91.437560] irq event stamp: 471835 [ 91.441173] hardirqs last enabled at (471834): [] kfree+0x111/0x260 [ 91.449297] hardirqs last disabled at (471835): [] interrupt_entry+0xb5/0xf0 [ 91.458030] softirqs last enabled at (471810): [] ip_finish_output2+0xa7f/0x1840 [ 91.467208] softirqs last disabled at (471811): [] do_softirq_own_stack+0x2a/0x40 [ 91.476383] CPU: 1 PID: 4526 Comm: sshd Not tainted 4.17.0-rc2+ #18 [ 91.482765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.492097] Call Trace: [ 91.494659] [ 91.496795] dump_stack+0x1b9/0x294 [ 91.500405] ? dump_stack_print_info.cold.2+0x52/0x52 [ 91.505579] ? fs_reclaim_acquire+0x20/0x20 [ 91.509889] ? do_softirq_own_stack+0x2a/0x40 [ 91.514366] ? do_softirq_own_stack+0x2a/0x40 [ 91.518844] ___might_sleep.cold.87+0x11f/0x13a [ 91.523494] ? check_same_owner+0x320/0x320 [ 91.527800] ? lock_release+0xa10/0xa10 [ 91.531757] __might_sleep+0x95/0x190 [ 91.535544] __kmalloc+0x2b9/0x760 [ 91.539064] ? trace_hardirqs_off+0xd/0x10 [ 91.543285] ? _raw_write_unlock_irqrestore+0x63/0xc0 [ 91.548457] ? crng_reseed+0x427/0x920 [ 91.552336] crng_reseed+0x427/0x920 [ 91.556034] ? _extract_entropy.constprop.32+0x150/0x150 [ 91.561468] ? __lock_is_held+0xb5/0x140 [ 91.565533] credit_entropy_bits+0x98d/0xa30 [ 91.569928] ? add_interrupt_randomness+0x494/0x860 [ 91.574941] ? crng_reseed+0x920/0x920 [ 91.578810] ? lock_downgrade+0x8e0/0x8e0 [ 91.582948] ? __mix_pool_bytes+0xde/0x400 [ 91.587178] ? kasan_check_read+0x11/0x20 [ 91.591308] ? do_raw_spin_unlock+0x9e/0x2e0 [ 91.595696] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 91.600261] ? __handle_irq_event_percpu+0x34d/0xad0 [ 91.605356] add_interrupt_randomness+0x494/0x860 [ 91.610192] ? extract_entropy.constprop.29+0x490/0x490 [ 91.615538] ? lock_downgrade+0x8e0/0x8e0 [ 91.619671] ? handle_edge_irq+0x30/0x870 [ 91.623801] handle_irq_event_percpu+0xf9/0x1c0 [ 91.628463] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 91.633025] ? __handle_irq_event_percpu+0xad0/0xad0 [ 91.638127] ? __kasan_slab_free+0x11a/0x170 [ 91.642519] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.648047] handle_irq_event+0xa7/0x135 [ 91.652089] handle_edge_irq+0x20f/0x870 [ 91.656132] handle_irq+0x18c/0x2e7 [ 91.659743] do_IRQ+0x78/0x190 [ 91.662926] common_interrupt+0xf/0xf [ 91.666707] RIP: 0010:kfree+0x124/0x260 [ 91.670660] RSP: 0018:ffff8801daf07b70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffd8 [ 91.678351] RAX: 0000000000000007 RBX: ffff8801cf2c6540 RCX: 1ffff10035a79deb [ 91.685604] RDX: 0000000000000000 RSI: ffff8801ad3cef88 RDI: 0000000000000286 [ 91.692855] RBP: ffff8801daf07b90 R08: ffff8801ad3cef38 R09: 0000000000000002 [ 91.700105] R10: ffff8801ad3ce700 R11: 0000000000000000 R12: 0000000000000286 [ 91.707356] R13: ffff8801da800640 R14: ffffffff8164dc89 R15: ffff8801daf07dd8 [ 91.714611] ? common_interrupt+0xa/0xf [ 91.718580] ? rcu_process_callbacks+0xa69/0x15f0 [ 91.723409] rcu_process_callbacks+0xa69/0x15f0 [ 91.728060] ? call_rcu_sched+0x20/0x20 [ 91.732021] ? kvm_clock_read+0x25/0x30 [ 91.735977] ? print_usage_bug+0xc0/0xc0 [ 91.740026] ? ktime_get+0x2d9/0x430 [ 91.743721] ? graph_lock+0x170/0x170 [ 91.747515] ? do_gettimeofday+0x170/0x170 [ 91.751731] ? lock_downgrade+0x8e0/0x8e0 [ 91.755862] ? ktime_get_update_offsets_now+0x3a6/0x570 [ 91.761209] ? __lock_is_held+0xb5/0x140 [ 91.765257] __do_softirq+0x2e0/0xaf5 [ 91.769042] ? __irqentry_text_end+0x1f98a8/0x1f98a8 [ 91.774129] ? irq_exit+0xbb/0x200 [ 91.777655] ? smp_apic_timer_interrupt+0x17e/0x710 [ 91.782749] ? smp_call_function_single_interrupt+0x650/0x650 [ 91.788619] ? _raw_spin_lock+0x32/0x40 [ 91.792575] ? _raw_spin_unlock+0x22/0x30 [ 91.796705] ? handle_edge_irq+0x330/0x870 [ 91.800924] ? task_prio+0x50/0x50 [ 91.804450] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.809274] do_softirq_own_stack+0x2a/0x40 [ 91.813570] [ 91.815791] do_softirq.part.17+0x14d/0x190 [ 91.820094] ? ip_finish_output2+0xa7f/0x1840 [ 91.824570] __local_bh_enable_ip+0x1ec/0x230 [ 91.829049] ip_finish_output2+0xab2/0x1840 [ 91.833351] ? trace_hardirqs_on+0xd/0x10 [ 91.837482] ? ip_copy_metadata+0xa90/0xa90 [ 91.841785] ? graph_lock+0x170/0x170 [ 91.845573] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.851093] ? ipv4_mtu+0x375/0x580 [ 91.854702] ? __lock_is_held+0xb5/0x140 [ 91.858747] ip_finish_output+0x828/0xf80 [ 91.862876] ? ip_finish_output+0x828/0xf80 [ 91.867195] ? ip_fragment.constprop.49+0x240/0x240 [ 91.872199] ? kasan_check_read+0x11/0x20 [ 91.876332] ? rcu_is_watching+0x85/0x140 [ 91.880463] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 91.885635] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 91.890631] ? nf_hook_slow+0x11e/0x1c0 [ 91.894586] ip_output+0x21b/0x850 [ 91.898106] ? __ip_local_out+0x5cf/0xb20 [ 91.902236] ? ip_mc_output+0x15a0/0x15a0 [ 91.906366] ? ip_fragment.constprop.49+0x240/0x240 [ 91.911362] ip_local_out+0xc5/0x1b0 [ 91.915057] ip_queue_xmit+0x9d7/0x1f70 [ 91.919025] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 91.924633] ? ip_build_and_send_pkt+0xc70/0xc70 [ 91.929374] ? __tcp_v4_send_check+0x1d/0x1d0 [ 91.933850] ? tcp_options_write+0x29f/0xa70 [ 91.938255] tcp_transmit_skb+0x1bd2/0x3d40 [ 91.942577] ? __tcp_select_window+0x9e0/0x9e0 [ 91.947144] ? kernel_text_address+0x79/0xf0 [ 91.951536] ? __unwind_start+0x166/0x330 [ 91.955665] ? __kernel_text_address+0xd/0x40 [ 91.960144] ? unwind_get_return_address+0x61/0xa0 [ 91.965072] ? __lock_acquire+0x7f5/0x5140 [ 91.969296] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 91.974299] ? tcp_small_queue_check.isra.25+0x352/0x470 [ 91.979731] ? tcp_rtx_synack+0x6f0/0x6f0 [ 91.983860] ? __alloc_skb+0x14d/0x780 [ 91.987741] ? sk_stream_alloc_skb+0x139/0x960 [ 91.992312] ? tcp_sendmsg_locked+0xe9f/0x3e10 [ 91.996883] ? tcp_sendmsg+0x2f/0x50 [ 92.000584] ? inet_sendmsg+0x19f/0x690 [ 92.004552] ? sock_sendmsg+0xd5/0x120 [ 92.008420] ? sock_write_iter+0x35a/0x5a0 [ 92.012638] ? __vfs_write+0x64d/0x960 [ 92.016509] ? kvm_clock_read+0x25/0x30 [ 92.020466] ? kvm_sched_clock_read+0x9/0x20 [ 92.024858] ? kasan_check_read+0x11/0x20 [ 92.028991] ? do_raw_spin_unlock+0x9e/0x2e0 [ 92.033385] tcp_write_xmit+0x9e1/0x5bf0 [ 92.037436] ? tcp_transmit_skb+0x3d40/0x3d40 [ 92.041914] ? graph_lock+0x170/0x170 [ 92.045716] ? __kmalloc_node_track_caller+0x47/0x70 [ 92.050813] ? find_held_lock+0x36/0x1c0 [ 92.054862] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 92.059861] ? iov_iter_advance+0x2e4/0x14c0 [ 92.064256] ? check_same_owner+0x320/0x320 [ 92.068565] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.074089] __tcp_push_pending_frames+0xb2/0x290 [ 92.078918] ? kasan_check_write+0x14/0x20 [ 92.083135] tcp_push+0x5f1/0x860 [ 92.086569] ? skb_entail+0x8a0/0x8a0 [ 92.090350] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 92.095349] ? iov_iter_advance+0x14c0/0x14c0 [ 92.099839] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 92.105359] ? tcp_tx_timestamp+0x237/0x2d0 [ 92.109663] tcp_sendmsg_locked+0x318b/0x3e10 [ 92.114143] ? debug_check_no_locks_freed+0x310/0x310 [ 92.119319] ? tcp_sendpage+0x60/0x60 [ 92.123102] ? print_usage_bug+0xc0/0xc0 [ 92.127146] ? debug_check_no_locks_freed+0x310/0x310 [ 92.132319] ? print_usage_bug+0xc0/0xc0 [ 92.136362] ? find_held_lock+0x36/0x1c0 [ 92.140407] ? lock_acquire+0x1dc/0x520 [ 92.144364] ? tcp_sendmsg+0x21/0x50 [ 92.148063] ? mark_held_locks+0xc9/0x160 [ 92.152198] ? __local_bh_enable_ip+0x161/0x230 [ 92.156848] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 92.161859] ? lock_sock_nested+0x9f/0x120 [ 92.166086] ? trace_hardirqs_on+0xd/0x10 [ 92.170233] ? __local_bh_enable_ip+0x161/0x230 [ 92.174884] ? lock_sock_nested+0xe7/0x120 [ 92.179107] tcp_sendmsg+0x2f/0x50 [ 92.182632] inet_sendmsg+0x19f/0x690 [ 92.186424] ? ipip_gro_receive+0x100/0x100 [ 92.190729] ? security_socket_sendmsg+0x94/0xc0 [ 92.195467] ? ipip_gro_receive+0x100/0x100 [ 92.200660] sock_sendmsg+0xd5/0x120 [ 92.204359] sock_write_iter+0x35a/0x5a0 [ 92.208404] ? sock_sendmsg+0x120/0x120 [ 92.212364] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 92.217883] ? iov_iter_init+0xc9/0x1f0 [ 92.221853] __vfs_write+0x64d/0x960 [ 92.225548] ? kernel_read+0x120/0x120 [ 92.229429] ? do_raw_spin_unlock+0x9e/0x2e0 [ 92.233822] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 92.238388] ? _raw_spin_unlock_irq+0x27/0x70 [ 92.242867] ? trace_hardirqs_on+0xd/0x10 [ 92.247014] ? _raw_spin_unlock_irq+0x27/0x70 [ 92.251492] ? rw_verify_area+0x118/0x360 [ 92.255624] vfs_write+0x1f8/0x560 [ 92.259156] ksys_write+0xf9/0x250 [ 92.262681] ? __ia32_sys_read+0xb0/0xb0 [ 92.266726] __x64_sys_write+0x73/0xb0 [ 92.270598] do_syscall_64+0x1b1/0x800 [ 92.274476] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 92.279302] ? syscall_return_slowpath+0x5c0/0x5c0 [ 92.284225] ? syscall_return_slowpath+0x30f/0x5c0 [ 92.289137] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 92.294496] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.299323] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.304496] RIP: 0033:0x7f4651f94370 [ 92.308187] RSP: 002b:00007fff58c3b088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 92.315876] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007f4651f94370 [ 92.323131] RDX: 0000000000000038 RSI: 00005604a319c420 RDI: 0000000000000003 [ 92.330387] RBP: 00005604a319c420 R08: 0000000000000001 R09: 0101010101010101 [ 92.337640] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fff58c3b0ec [ 92.344914] R13: 00005604a1e6cfb4 R14: 0000000000000028 R15: 00005604a1e6eca0 [ 92.352210] random: crng init done [ 92.382493] WARNING: CPU: 1 PID: 7594 at net/ipv4/tcp_input.c:1955 tcp_enter_loss+0xe4f/0x1110 [ 92.391292] Kernel panic - not syncing: panic_on_warn set ... [ 92.391292] [ 92.398677] CPU: 1 PID: 7594 Comm: syz-executor853 Tainted: G W 4.17.0-rc2+ #18 [ 92.407422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.416769] Call Trace: [ 92.419360] dump_stack+0x1b9/0x294 [ 92.422988] ? dump_stack_print_info.cold.2+0x52/0x52 [ 92.428180] ? tcp_enter_loss+0xd90/0x1110 executing program executing program executing program executing program executing program [ 92.432409] panic+0x22f/0x4de [ 92.435595] ? add_taint.cold.5+0x16/0x16 [ 92.439737] ? __warn.cold.8+0x148/0x1b3 [ 92.443793] ? __warn.cold.8+0x117/0x1b3 [ 92.447850] ? tcp_enter_loss+0xe4f/0x1110 [ 92.452082] __warn.cold.8+0x163/0x1b3 [ 92.455978] ? tcp_enter_loss+0xe4f/0x1110 [ 92.460232] report_bug+0x252/0x2d0 [ 92.463863] do_error_trap+0x1de/0x490 [ 92.467774] ? free_unref_page+0x9d0/0x9d0 [ 92.472029] ? math_error+0x420/0x420 [ 92.475845] ? account_kernel_stack+0x2bd/0x410 executing program executing program executing program executing program executing program executing program [ 92.480537] ? trace_hardirqs_on+0xd/0x10 [ 92.484693] ? put_task_stack+0x188/0x2c0 [ 92.488850] ? kasan_check_write+0x14/0x20 [ 92.493103] ? finish_task_switch+0x59e/0x810 [ 92.497619] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.502475] do_invalid_op+0x1b/0x20 [ 92.506191] invalid_op+0x14/0x20 [ 92.509655] RIP: 0010:tcp_enter_loss+0xe4f/0x1110 [ 92.514492] RSP: 0018:ffff8801c30b7560 EFLAGS: 00010293 [ 92.519858] RAX: ffff8801c6c22080 RBX: 0000000000000001 RCX: ffffffff864ac155 executing program executing program executing program executing program executing program executing program executing program [ 92.527141] RDX: 0000000000000000 RSI: ffffffff864ac5bf RDI: 0000000000000004 [ 92.534413] RBP: ffff8801c30b75e0 R08: ffff8801c6c22080 R09: 0000000000000000 [ 92.541683] R10: ffffed0043fff009 R11: ffff88021fff8057 R12: 0000000000000003 [ 92.548957] R13: 0000000000000002 R14: ffff8801c1cce5f0 R15: ffff8801ad93a000 [ 92.556256] ? tcp_enter_loss+0x9e5/0x1110 [ 92.560517] ? tcp_enter_loss+0xe4f/0x1110 [ 92.565027] tcp_retransmit_timer+0xc34/0x3060 [ 92.569617] ? pgtable_bad+0x130/0x130 [ 92.573530] ? tcp_delack_timer+0x280/0x280 [ 92.577864] ? __bad_area_nosemaphore+0x2a8/0x370 executing program executing program executing program executing program executing program executing program executing program [ 92.582724] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.588267] ? bad_area+0x69/0x80 [ 92.591725] ? __do_page_fault+0x441/0xe40 [ 92.595965] ? mm_fault_error+0x380/0x380 [ 92.600120] ? mm_fault_error+0x380/0x380 [ 92.604277] ? pvclock_read_flags+0x160/0x160 [ 92.608781] ? vmalloc_sync_all+0x30/0x30 [ 92.612947] ? do_page_fault+0xee/0x8a7 [ 92.616940] ? kvm_clock_read+0x25/0x30 [ 92.620942] ? kvm_sched_clock_read+0x9/0x20 [ 92.625362] ? sched_clock+0x31/0x40 [ 92.629090] ? sched_clock_cpu+0x1b/0x180 executing program executing program executing program executing program executing program executing program executing program [ 92.633243] ? release_sock+0x74/0x2b0 [ 92.637150] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 92.642350] tcp_write_timer_handler+0x339/0x960 [ 92.647115] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 92.651900] ? tcp_retransmit_timer+0x3060/0x3060 [ 92.656751] ? no_context+0x136/0x960 [ 92.660578] ? __do_page_fault+0x441/0xe40 [ 92.664843] tcp_release_cb+0x25e/0x2d0 [ 92.668832] ? tcp_tsq_handler.part.43+0x2e0/0x2e0 [ 92.673785] release_sock+0x107/0x2b0 [ 92.677593] ? kvm_fastop_exception+0x5422/0x5486 executing program executing program executing program executing program executing program executing program [ 92.682442] ? __release_sock+0x3a0/0x3a0 [ 92.687041] ? memset+0x31/0x40 [ 92.690328] ? _copy_from_user+0xdf/0x150 [ 92.694491] do_tcp_setsockopt.isra.38+0x48e/0x2600 [ 92.699521] ? tcp_done+0x290/0x290 [ 92.703164] ? vfs_writev+0x255/0x330 [ 92.706980] ? rcu_read_lock_sched_held+0x108/0x120 [ 92.712124] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.717668] ? __fget_light+0x2ef/0x430 [ 92.721649] ? vfs_writev+0xfc/0x330 [ 92.725368] ? fget_raw+0x20/0x20 [ 92.728832] ? lock_downgrade+0x8e0/0x8e0 executing program executing program executing program executing program executing program executing program executing program [ 92.733004] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 92.738550] tcp_setsockopt+0xc1/0xe0 [ 92.742359] sock_common_setsockopt+0x9a/0xe0 [ 92.746930] __sys_setsockopt+0x1bd/0x390 [ 92.751102] ? kernel_accept+0x310/0x310 [ 92.755209] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 92.761109] __x64_sys_setsockopt+0xbe/0x150 [ 92.765563] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 92.770591] do_syscall_64+0x1b1/0x800 [ 92.774488] ? syscall_return_slowpath+0x5c0/0x5c0 [ 92.779431] ? syscall_return_slowpath+0x30f/0x5c0 executing program executing program executing program executing program executing program executing program [ 92.784374] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 92.789755] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.794616] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.799811] RIP: 0033:0x4418c9 [ 92.803018] RSP: 002b:00007ffe3e39fcb8 EFLAGS: 00000207 ORIG_RAX: 0000000000000036 [ 92.810739] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004418c9 [ 92.818021] RDX: 0000000000000016 RSI: 0000000000000006 RDI: 0000000000000003 [ 92.825297] RBP: 0000000000000000 R08: 000000002000023b R09: 0000000000000010 executing program executing program [ 92.832583] R10: 0000000020000040 R11: 0000000000000207 R12: 0000000000015883 [ 92.839873] R13: 0000000000402d10 R14: 00000000006cd440 R15: 0000000000000000 [ 92.847678] Dumping ftrace buffer: [ 92.851201] (ftrace buffer empty) [ 92.854891] Kernel Offset: disabled [ 92.858497] Rebooting in 86400 seconds..