Warning: Permanently added '10.128.1.22' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.411162][ T3567] general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN [ 48.422893][ T3567] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 48.431392][ T3567] CPU: 1 PID: 3567 Comm: syz-executor893 Not tainted 5.17.0-next-20220401-syzkaller #0 [ 48.441007][ T3567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.451048][ T3567] RIP: 0010:io_poll_check_events+0x1e0/0x800 [ 48.457025][ T3567] Code: e8 03 48 c7 44 24 60 00 00 00 00 44 89 74 24 68 42 80 3c 28 00 0f 85 ac 05 00 00 48 8b 5d 00 48 8d 7b 28 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 88 05 00 00 48 8b 43 28 48 8d 78 48 48 89 fa [ 48.476612][ T3567] RSP: 0018:ffffc900038ffa00 EFLAGS: 00010206 [ 48.482661][ T3567] RAX: 0000000000000005 RBX: 0000000000000000 RCX: 0000000000000000 [ 48.490616][ T3567] RDX: ffff88801cea0000 RSI: ffffffff81eba128 RDI: 0000000000000028 [ 48.498605][ T3567] RBP: ffff8880182d28c0 R08: 0000000000000000 R09: ffff8880182d2947 [ 48.506559][ T3567] R10: ffffffff81eba2f4 R11: 0000000000000006 R12: 0000000000000001 [ 48.514511][ T3567] R13: dffffc0000000000 R14: 0000000040002038 R15: ffff8880182d2944 [ 48.522468][ T3567] FS: 0000555556048300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 48.531397][ T3567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.537980][ T3567] CR2: 00007ff954a2e140 CR3: 000000001a5af000 CR4: 00000000003506e0 [ 48.545933][ T3567] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.553888][ T3567] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.561851][ T3567] Call Trace: [ 48.565116][ T3567] [ 48.568051][ T3567] ? io_rsrc_put_work+0x5c0/0x5c0 [ 48.573078][ T3567] ? tctx_task_work+0x15a/0x1460 [ 48.578000][ T3567] ? lock_downgrade+0x6e0/0x6e0 [ 48.582841][ T3567] io_poll_task_func+0x41/0x500 [ 48.587684][ T3567] tctx_task_work+0x1a4/0x1460 [ 48.592443][ T3567] ? task_work_run+0xbc/0x1a0 [ 48.597103][ T3567] ? lock_downgrade+0x6e0/0x6e0 [ 48.601938][ T3567] ? __io_submit_flush_completions+0xb10/0xb10 [ 48.608075][ T3567] ? rwlock_bug.part.0+0x90/0x90 [ 48.613001][ T3567] ? _raw_spin_unlock_irq+0x1f/0x40 [ 48.618193][ T3567] task_work_run+0xdd/0x1a0 [ 48.622689][ T3567] get_signal+0x1c5/0x24c0 [ 48.627094][ T3567] ? find_held_lock+0x2d/0x110 [ 48.631844][ T3567] ? signal_setup_done+0x560/0x560 [ 48.636959][ T3567] ? percpu_ref_put_many+0x14c/0x260 [ 48.642230][ T3567] ? lock_downgrade+0x6e0/0x6e0 [ 48.647064][ T3567] arch_do_signal_or_restart+0x88/0x1a10 [ 48.652705][ T3567] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 48.658936][ T3567] ? __do_sys_io_uring_enter+0x560/0x1520 [ 48.664643][ T3567] ? get_sigframe_size+0x10/0x10 [ 48.669565][ T3567] ? io_submit_sqes+0x9710/0x9710 [ 48.674574][ T3567] ? lock_downgrade+0x6e0/0x6e0 [ 48.679415][ T3567] exit_to_user_mode_prepare+0x15f/0x250 [ 48.685033][ T3567] syscall_exit_to_user_mode+0x19/0x60 [ 48.690481][ T3567] do_syscall_64+0x42/0x80 [ 48.694882][ T3567] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 48.700764][ T3567] RIP: 0033:0x7ff9549bcff9 [ 48.705160][ T3567] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 48.724748][ T3567] RSP: 002b:00007ffd1be31e78 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa [ 48.733144][ T3567] RAX: 0000000000000200 RBX: 0000000000000000 RCX: 00007ff9549bcff9 [ 48.741098][ T3567] RDX: 0000000000000000 RSI: 000000000000146f RDI: 0000000000000003 [ 48.749052][ T3567] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 48.757016][ T3567] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff954980880 [ 48.764968][ T3567] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 48.772925][ T3567] [ 48.775926][ T3567] Modules linked in: [ 48.780293][ T3567] ---[ end trace 0000000000000000 ]--- [ 48.785776][ T3567] RIP: 0010:io_poll_check_events+0x1e0/0x800 [ 48.791769][ T3567] Code: e8 03 48 c7 44 24 60 00 00 00 00 44 89 74 24 68 42 80 3c 28 00 0f 85 ac 05 00 00 48 8b 5d 00 48 8d 7b 28 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 88 05 00 00 48 8b 43 28 48 8d 78 48 48 89 fa [ 48.811409][ T3567] RSP: 0018:ffffc900038ffa00 EFLAGS: 00010206 [ 48.817489][ T3567] RAX: 0000000000000005 RBX: 0000000000000000 RCX: 0000000000000000 [ 48.825445][ T3567] RDX: ffff88801cea0000 RSI: ffffffff81eba128 RDI: 0000000000000028 [ 48.833427][ T3567] RBP: ffff8880182d28c0 R08: 0000000000000000 R09: ffff8880182d2947 [ 48.841430][ T3567] R10: ffffffff81eba2f4 R11: 0000000000000006 R12: 0000000000000001 [ 48.849433][ T3567] R13: dffffc0000000000 R14: 0000000040002038 R15: ffff8880182d2944 [ 48.857422][ T3567] FS: 0000555556048300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 48.866381][ T3567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.872970][ T3567] CR2: 00007ff954a2e140 CR3: 000000001a5af000 CR4: 00000000003506e0 [ 48.880961][ T3567] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.889087][ T3567] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.897093][ T3567] Kernel panic - not syncing: Fatal exception [ 48.903301][ T3567] Kernel Offset: disabled [ 48.907617][ T3567] Rebooting in 86400 seconds..