Warning: Permanently added '10.128.1.4' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 546.798562][T11137] ------------[ cut here ]------------ [ 546.804094][T11137] WARNING: CPU: 0 PID: 11137 at lib/percpu-refcount.c:111 percpu_ref_exit+0xa3/0xd0 [ 546.813712][T11137] Kernel panic - not syncing: panic_on_warn set ... [ 546.820387][T11137] CPU: 0 PID: 11137 Comm: syz-executor264 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 [ 546.830701][T11137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 546.840850][T11137] Call Trace: [ 546.844140][T11137] dump_stack+0x188/0x20d [ 546.848551][T11137] ? percpu_ref_exit+0x10/0xd0 [ 546.853352][T11137] panic+0x2e3/0x75c [ 546.857240][T11137] ? add_taint.cold+0x16/0x16 [ 546.861926][T11137] ? printk+0xba/0xed [ 546.866013][T11137] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 546.871490][T11137] ? __warn.cold+0x14/0x35 [ 546.875898][T11137] ? __warn+0xd5/0x1c8 [ 546.880004][T11137] ? percpu_ref_exit+0xa3/0xd0 [ 546.885039][T11137] __warn.cold+0x2f/0x35 [ 546.889981][T11137] ? percpu_ref_exit+0xa3/0xd0 [ 546.894799][T11137] report_bug+0x27b/0x2f0 [ 546.899141][T11137] do_error_trap+0x12b/0x220 [ 546.903730][T11137] ? percpu_ref_exit+0xa3/0xd0 [ 546.908548][T11137] do_invalid_op+0x32/0x40 [ 546.912951][T11137] ? percpu_ref_exit+0xa3/0xd0 [ 546.917708][T11137] invalid_op+0x23/0x30 [ 546.921931][T11137] RIP: 0010:percpu_ref_exit+0xa3/0xd0 [ 546.927415][T11137] Code: 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 1a 48 c7 43 08 03 00 00 00 5b 5d 41 5c e9 f2 6e e3 fd e8 ed 6e e3 fd <0f> 0b eb c2 4c 89 e7 e8 01 90 20 fe eb dc e8 7a 8f 20 fe eb aa 4c [ 546.947651][T11137] RSP: 0018:ffffc90005247c18 EFLAGS: 00010293 [ 546.953731][T11137] RAX: ffff8880a6d74000 RBX: ffff888092467610 RCX: ffffffff838f262d [ 546.961691][T11137] RDX: 0000000000000000 RSI: ffffffff838f2693 RDI: ffff888092467628 [ 546.969735][T11137] RBP: 0000607f51635560 R08: ffff8880a6d74000 R09: ffffed101248ceca [ 546.977748][T11137] R10: ffffed101248cec9 R11: ffff88809246764f R12: ffff888092467618 [ 546.985861][T11137] R13: ffff88809d8f91a0 R14: ffff88809d8f9000 R15: ffff888091f6e880 [ 546.993877][T11137] ? percpu_ref_exit+0x3d/0xd0 [ 546.999512][T11137] ? percpu_ref_exit+0xa3/0xd0 [ 547.004297][T11137] ? percpu_ref_exit+0xa3/0xd0 [ 547.009055][T11137] io_sqe_files_unregister+0x8a/0x2f0 [ 547.014466][T11137] ? io_ring_ctx_wait_and_kill+0x864/0xa10 [ 547.020318][T11137] ? lockdep_hardirqs_on+0x417/0x5d0 [ 547.025608][T11137] io_ring_ctx_wait_and_kill+0x4b5/0xa10 [ 547.031246][T11137] ? io_ring_ctx_wait_and_kill+0xa10/0xa10 [ 547.037053][T11137] io_uring_release+0x3e/0x50 [ 547.041716][T11137] __fput+0x2da/0x850 [ 547.045933][T11137] task_work_run+0x13f/0x1b0 [ 547.050600][T11137] do_exit+0xb53/0x2e10 [ 547.054916][T11137] ? mm_update_next_owner+0x7a0/0x7a0 [ 547.060315][T11137] ? up_read+0x1a8/0x750 [ 547.064562][T11137] ? down_read_nested+0x430/0x430 [ 547.069658][T11137] ? handle_mm_fault+0x29e/0x660 [ 547.074639][T11137] do_group_exit+0x125/0x340 [ 547.079239][T11137] __x64_sys_exit_group+0x3a/0x50 [ 547.084264][T11137] do_syscall_64+0xf6/0x790 [ 547.089174][T11137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 547.095069][T11137] RIP: 0033:0x43fff8 [ 547.098959][T11137] Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 [ 547.120917][T11137] RSP: 002b:00007ffc019d9f68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 547.129332][T11137] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fff8 [ 547.137392][T11137] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 547.146257][T11137] RBP: 00000000004bf830 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 547.154219][T11137] R10: 40000000000001b2 R11: 0000000000000246 R12: 0000000000000001 [ 547.162197][T11137] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 547.171855][T11137] Kernel Offset: disabled [ 547.176298][T11137] Rebooting in 86400 seconds..