Warning: Permanently added '10.128.10.44' (ECDSA) to the list of known hosts. syzkaller login: [ 38.517685] IPVS: ftp: loaded support on port[0] = 21 executing program [ 38.583580] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 [ 38.591587] PGD 0 P4D 0 [ 38.594241] Oops: 0002 [#1] PREEMPT SMP KASAN [ 38.598718] CPU: 1 PID: 8153 Comm: kworker/u5:2 Not tainted 4.19.163-syzkaller #0 [ 38.606334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.615697] Workqueue: hci0 hci_rx_work [ 38.619669] RIP: 0010:amp_read_loc_assoc_final_data+0x102/0x1d0 [ 38.625727] Code: fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 ae 00 00 00 41 0f b7 84 24 9c 03 00 00 66 89 44 24 23 41 80 4d 30 04 48 8d 6c 24 40 4c 89 e6 48 89 ef e8 08 35 fe ff [ 38.644660] RSP: 0018:ffff888094ddf978 EFLAGS: 00010246 [ 38.650016] RAX: 0000000000000000 RBX: 1ffff110129bbf2f RCX: 1ffff1101601455b [ 38.657266] RDX: 0000000000000000 RSI: ffffffff8765c0be RDI: ffff8880a3ebd51c [ 38.664527] RBP: ffff8880b0162480 R08: 0000000000000000 R09: 0000000000000002 [ 38.671792] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3ebd180 [ 38.679046] R13: 0000000000000000 R14: ffff8880a3ebe0c0 R15: ffff8880a3ebd180 [ 38.686308] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 38.694533] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.700406] CR2: 0000000000000030 CR3: 00000000b021b000 CR4: 00000000001406e0 [ 38.707670] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.714924] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.722176] Call Trace: [ 38.724765] ? amp_read_loc_assoc+0x180/0x180 [ 38.729254] ? hci_chan_selected_evt+0x1b3/0x3e0 [ 38.733994] ? lock_downgrade+0x720/0x720 [ 38.738131] ? lock_acquire+0x170/0x3c0 [ 38.742091] ? hci_chan_selected_evt+0x81/0x3e0 [ 38.746765] ? check_preemption_disabled+0x41/0x280 [ 38.751768] hci_chan_selected_evt+0x1ef/0x3e0 [ 38.756333] hci_event_packet+0x2a4a/0x7e19 [ 38.760636] ? mark_held_locks+0xf0/0xf0 [ 38.764674] ? __lock_acquire+0x6de/0x3ff0 [ 38.768899] ? hci_cmd_complete_evt+0xc280/0xc280 [ 38.773725] ? __update_load_avg_se+0x5ec/0xa00 [ 38.778375] ? debug_object_deactivate+0x1f9/0x2e0 [ 38.783286] ? mark_held_locks+0xa6/0xf0 [ 38.787337] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 38.792418] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 38.796980] hci_rx_work+0x4ad/0xc70 [ 38.800678] process_one_work+0x864/0x1570 [ 38.804892] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 38.809554] worker_thread+0x64c/0x1130 [ 38.813511] ? __kthread_parkme+0x133/0x1e0 [ 38.817826] ? process_one_work+0x1570/0x1570 [ 38.822318] kthread+0x33f/0x460 [ 38.825672] ? kthread_park+0x180/0x180 [ 38.829895] ret_from_fork+0x24/0x30 [ 38.833600] Modules linked in: [ 38.836770] CR2: 0000000000000030 [ 38.840215] ---[ end trace 16883ba4ab100d9e ]--- [ 38.844968] RIP: 0010:amp_read_loc_assoc_final_data+0x102/0x1d0 [ 38.851016] Code: fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 ae 00 00 00 41 0f b7 84 24 9c 03 00 00 66 89 44 24 23 41 80 4d 30 04 48 8d 6c 24 40 4c 89 e6 48 89 ef e8 08 35 fe ff [ 38.869912] RSP: 0018:ffff888094ddf978 EFLAGS: 00010246 [ 38.875265] RAX: 0000000000000000 RBX: 1ffff110129bbf2f RCX: 1ffff1101601455b [ 38.882526] RDX: 0000000000000000 RSI: ffffffff8765c0be RDI: ffff8880a3ebd51c [ 38.889795] RBP: ffff8880b0162480 R08: 0000000000000000 R09: 0000000000000002 [ 38.897055] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3ebd180 [ 38.904322] R13: 0000000000000000 R14: ffff8880a3ebe0c0 R15: ffff8880a3ebd180 [ 38.911589] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 38.919810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.925677] CR2: 0000000000000030 CR3: 00000000b021b000 CR4: 00000000001406e0 [ 38.932934] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.940206] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.947463] Kernel panic - not syncing: Fatal exception [ 38.953440] Kernel Offset: disabled [ 38.957079] Rebooting in 86400 seconds..