Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.468289][ T3628] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 67.480047][ T3628] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 67.488466][ T3628] CPU: 0 PID: 3628 Comm: syz-executor916 Not tainted 6.1.19-syzkaller #0 [ 67.496904][ T3628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 67.506965][ T3628] RIP: 0010:io_poll_remove_entries+0x39a/0x5f0 [ 67.513154][ T3628] Code: c4 40 4c 89 e0 48 c1 e8 03 4d 89 fd 42 80 3c 38 00 74 08 4c 89 e7 e8 15 ff ab fd 49 8b 1c 24 4c 8d 7b 08 4d 89 fe 49 c1 ee 03 <43> 80 3c 2e 00 74 08 4c 89 ff e8 f7 fe ab fd 49 8b 2f 48 85 ed 0f [ 67.532787][ T3628] RSP: 0018:ffffc90003bdf9d0 EFLAGS: 00010202 [ 67.538895][ T3628] RAX: 1ffff110039d2ca8 RBX: 0000000000000000 RCX: ffff88807ca1ba80 [ 67.546957][ T3628] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000006 [ 67.554946][ T3628] RBP: 0000000001000000 R08: ffffffff8434c5e5 R09: fffffbfff204cc31 [ 67.562920][ T3628] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801ce96540 [ 67.570904][ T3628] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000008 [ 67.578910][ T3628] FS: 0000555555749300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 67.587852][ T3628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.594441][ T3628] CR2: 00007f64e4f17b20 CR3: 000000007cdfc000 CR4: 00000000003506f0 [ 67.602420][ T3628] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.610396][ T3628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.618377][ T3628] Call Trace: [ 67.621660][ T3628] [ 67.624599][ T3628] __io_arm_poll_handler+0x5df/0x920 [ 67.629923][ T3628] io_arm_poll_handler+0x75d/0xd20 [ 67.635061][ T3628] ? io_ringfd_unregister+0x450/0x450 [ 67.640447][ T3628] ? io_arm_poll_handler+0xd20/0xd20 [ 67.645756][ T3628] io_queue_async+0xa6/0x640 [ 67.650353][ T3628] ? io_req_task_submit+0x151/0x1f0 [ 67.655658][ T3628] handle_tw_list+0x2aa/0x480 [ 67.660357][ T3628] tctx_task_work+0x11b/0x720 [ 67.665067][ T3628] ? task_work_run+0x1fc/0x300 [ 67.669884][ T3628] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 67.675880][ T3628] ? percpu_ref_get_many+0x1a0/0x1a0 [ 67.681187][ T3628] ? _raw_spin_lock_irq+0xdb/0x110 [ 67.686348][ T3628] ? do_raw_spin_unlock+0x137/0x8a0 [ 67.691651][ T3628] ? _raw_spin_unlock_irq+0x1f/0x40 [ 67.696880][ T3628] ? lockdep_hardirqs_on+0x94/0x130 [ 67.702188][ T3628] task_work_run+0x246/0x300 [ 67.706892][ T3628] ? task_work_cancel+0x2b0/0x2b0 [ 67.712017][ T3628] ? exit_to_user_mode_loop+0x39/0x100 [ 67.717488][ T3628] exit_to_user_mode_loop+0xd9/0x100 [ 67.722781][ T3628] exit_to_user_mode_prepare+0xb1/0x140 [ 67.728338][ T3628] syscall_exit_to_user_mode+0x60/0x2d0 [ 67.733930][ T3628] do_syscall_64+0x49/0xb0 [ 67.738366][ T3628] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.744286][ T3628] RIP: 0033:0x7f64e4eaa5c3 [ 67.748708][ T3628] Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 [ 67.768321][ T3628] RSP: 002b:00007ffffcc52f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 67.776743][ T3628] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f64e4eaa5c3 [ 67.784732][ T3628] RDX: 0000000000000000 RSI: 000000000000561c RDI: 0000000000000003 [ 67.792744][ T3628] RBP: 00007ffffcc52f90 R08: 0000000000000000 R09: 0000000000000000 [ 67.800730][ T3628] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffffcc52f88 [ 67.808802][ T3628] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.816791][ T3628] [ 67.819822][ T3628] Modules linked in: [ 67.823956][ T3628] ---[ end trace 0000000000000000 ]--- [ 67.829443][ T3628] RIP: 0010:io_poll_remove_entries+0x39a/0x5f0 [ 67.835732][ T3628] Code: c4 40 4c 89 e0 48 c1 e8 03 4d 89 fd 42 80 3c 38 00 74 08 4c 89 e7 e8 15 ff ab fd 49 8b 1c 24 4c 8d 7b 08 4d 89 fe 49 c1 ee 03 <43> 80 3c 2e 00 74 08 4c 89 ff e8 f7 fe ab fd 49 8b 2f 48 85 ed 0f [ 67.855408][ T3628] RSP: 0018:ffffc90003bdf9d0 EFLAGS: 00010202 [ 67.861473][ T3628] RAX: 1ffff110039d2ca8 RBX: 0000000000000000 RCX: ffff88807ca1ba80 [ 67.869488][ T3628] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000006 [ 67.877631][ T3628] RBP: 0000000001000000 R08: ffffffff8434c5e5 R09: fffffbfff204cc31 [ 67.885646][ T3628] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801ce96540 [ 67.893639][ T3628] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000008 [ 67.901667][ T3628] FS: 0000555555749300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 67.910643][ T3628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.917357][ T3628] CR2: 00007ffffcc52f48 CR3: 000000007cdfc000 CR4: 00000000003506e0 [ 67.925399][ T3628] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.933374][ T3628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.941559][ T3628] Kernel panic - not syncing: Fatal exception [ 67.947823][ T3628] Kernel Offset: disabled [ 67.952155][ T3628] Rebooting in 86400 seconds..