Warning: Permanently added '10.128.0.73' (ECDSA) to the list of known hosts. syzkaller login: [ 39.687960] audit: type=1400 audit(1596392132.024:8): avc: denied { execmem } for pid=6459 comm="syz-executor941" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 39.715066] IPVS: ftp: loaded support on port[0] = 21 executing program [ 40.891775] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 [ 40.899786] PGD 0 P4D 0 [ 40.902463] Oops: 0002 [#1] PREEMPT SMP KASAN [ 40.906991] CPU: 1 PID: 6489 Comm: kworker/u5:2 Not tainted 4.19.136-syzkaller #0 [ 40.914602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.923952] Workqueue: hci0 hci_rx_work [ 40.927916] RIP: 0010:amp_read_loc_assoc_final_data+0x102/0x1d0 [ 40.933973] 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 a8 59 fe ff [ 40.952869] RSP: 0018:ffff888084a6f980 EFLAGS: 00010246 [ 40.958216] RAX: 0000000000000000 RBX: 1ffff1101094df30 RCX: 1ffff110148885eb [ 40.965474] RDX: 0000000000000000 RSI: ffffffff8687a75e RDI: ffff8880a4ef145c [ 40.972727] RBP: ffff8880a4ee4800 R08: 0000000000000000 R09: 0000000000000002 [ 40.980002] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a4ef10c0 [ 40.987272] R13: 0000000000000000 R14: ffff8880a4ef2000 R15: ffff8880a4ef10c0 [ 40.994535] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 41.002746] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.008612] CR2: 0000000000000030 CR3: 0000000008c6d000 CR4: 00000000001406e0 [ 41.015883] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.023157] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.030419] Call Trace: [ 41.032994] ? amp_read_loc_assoc+0x180/0x180 [ 41.037478] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 41.042577] ? hci_chan_selected_evt+0x1a4/0x360 [ 41.047324] ? lock_downgrade+0x720/0x720 [ 41.051456] ? lock_acquire+0x170/0x3c0 [ 41.055415] ? hci_chan_selected_evt+0x72/0x360 [ 41.060096] ? check_preemption_disabled+0x41/0x280 [ 41.065102] hci_chan_selected_evt+0x1e0/0x360 [ 41.069672] hci_event_packet+0x185a/0x858f [ 41.073992] ? mark_held_locks+0xf0/0xf0 [ 41.078056] ? hci_cmd_complete_evt+0xb5e0/0xb5e0 [ 41.082882] ? find_busiest_group+0x25f0/0x25f0 [ 41.087541] ? debug_object_deactivate+0x1f9/0x2e0 [ 41.092982] ? mark_held_locks+0xa6/0xf0 [ 41.097070] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 41.102176] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.106761] hci_rx_work+0x46b/0xa90 [ 41.110459] process_one_work+0x864/0x1570 [ 41.114766] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 41.119423] worker_thread+0x64c/0x1130 [ 41.123384] ? __kthread_parkme+0xfd/0x1b0 [ 41.127617] ? process_one_work+0x1570/0x1570 [ 41.132122] kthread+0x30b/0x410 [ 41.135471] ? kthread_park+0x180/0x180 [ 41.139435] ret_from_fork+0x24/0x30 [ 41.143132] Modules linked in: [ 41.146304] CR2: 0000000000000030 [ 41.149751] ---[ end trace d2b9cf531279af3a ]--- [ 41.154508] RIP: 0010:amp_read_loc_assoc_final_data+0x102/0x1d0 [ 41.160549] 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 a8 59 fe ff [ 41.179450] RSP: 0018:ffff888084a6f980 EFLAGS: 00010246 [ 41.184842] RAX: 0000000000000000 RBX: 1ffff1101094df30 RCX: 1ffff110148885eb [ 41.192097] RDX: 0000000000000000 RSI: ffffffff8687a75e RDI: ffff8880a4ef145c [ 41.199351] RBP: ffff8880a4ee4800 R08: 0000000000000000 R09: 0000000000000002 [ 41.206613] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a4ef10c0 [ 41.213876] R13: 0000000000000000 R14: ffff8880a4ef2000 R15: ffff8880a4ef10c0 [ 41.221133] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 41.229349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.235230] CR2: 0000000000000030 CR3: 0000000008c6d000 CR4: 00000000001406e0 [ 41.242487] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.250452] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.257714] Kernel panic - not syncing: Fatal exception [ 41.263812] Kernel Offset: disabled [ 41.267449] Rebooting in 86400 seconds..