[ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.2' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.658536][ T6889] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 56.670286][ T6889] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 56.678675][ T6889] CPU: 1 PID: 6889 Comm: syz-executor086 Not tainted 5.9.0-rc8-next-20201008-syzkaller #0 [ 56.688545][ T6889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.698580][ T6889] RIP: 0010:scsi_queue_rq+0x2155/0x3020 [ 56.704140][ T6889] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 98 0c 00 00 48 8b 83 58 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <0f> b6 14 11 48 89 c1 83 e1 07 38 ca 7f 08 84 d2 0f 85 53 0c 00 00 [ 56.723716][ T6889] RSP: 0018:ffffc90005627580 EFLAGS: 00010246 [ 56.729770][ T6889] RAX: 0000000000000000 RBX: ffff88801b6bd400 RCX: 0000000000000000 [ 56.737765][ T6889] RDX: dffffc0000000000 RSI: ffffffff84aaad82 RDI: 0000000000000003 [ 56.745709][ T6889] RBP: ffff888019670000 R08: 0000000000000001 R09: ffff88801b6bd7c0 [ 56.753656][ T6889] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 56.761604][ T6889] R13: ffff88801b6bd658 R14: ffff8881341bc000 R15: 0000000000000000 [ 56.769552][ T6889] FS: 00007f1d217b3700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 [ 56.778495][ T6889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.785061][ T6889] CR2: 00005617bf6e4410 CR3: 000000001f08b000 CR4: 00000000001506e0 [ 56.793015][ T6889] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.800963][ T6889] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.808905][ T6889] Call Trace: [ 56.812189][ T6889] blk_mq_dispatch_rq_list+0x3a1/0x1eb0 [ 56.817718][ T6889] ? target_block+0x1/0x50 [ 56.822160][ T6889] ? blk_mq_dequeue_from_ctx+0x8b0/0x8b0 [ 56.827765][ T6889] ? do_raw_spin_lock+0x120/0x2b0 [ 56.832802][ T6889] ? rwlock_bug.part.0+0x90/0x90 [ 56.837711][ T6889] ? hctx_lock+0x7f/0x1d0 [ 56.842012][ T6889] __blk_mq_sched_dispatch_requests+0x263/0x490 [ 56.848238][ T6889] ? blk_mq_do_dispatch_ctx+0x640/0x640 [ 56.853842][ T6889] ? lock_is_held_type+0xbb/0xf0 [ 56.858784][ T6889] blk_mq_sched_dispatch_requests+0xfb/0x180 [ 56.864736][ T6889] __blk_mq_run_hw_queue+0x13a/0x2d0 [ 56.869991][ T6889] ? trace_block_unplug+0x290/0x290 [ 56.875184][ T6889] __blk_mq_delay_run_hw_queue+0x522/0x5f0 [ 56.880962][ T6889] blk_mq_run_hw_queue+0x16c/0x2f0 [ 56.886046][ T6889] ? blk_mq_delay_run_hw_queues+0x1a0/0x1a0 [ 56.891907][ T6889] ? do_raw_spin_unlock+0x171/0x230 [ 56.897086][ T6889] ? _raw_spin_unlock+0x24/0x40 [ 56.901906][ T6889] ? blk_mq_request_bypass_insert+0x14e/0x2f0 [ 56.907944][ T6889] blk_mq_sched_insert_request+0x4d7/0x5e0 [ 56.913726][ T6889] ? __blk_mq_sched_bio_merge+0x450/0x450 [ 56.919418][ T6889] ? blk_execute_rq_nowait+0x180/0x180 [ 56.924846][ T6889] ? blk_account_io_start+0x15b/0x1e0 [ 56.930188][ T6889] ? __raw_spin_lock_init+0x34/0x100 [ 56.935444][ T6889] blk_execute_rq+0xd4/0x1b0 [ 56.940006][ T6889] ? blk_end_sync_rq+0x50/0x50 [ 56.944742][ T6889] ? check_preemption_disabled+0x50/0x130 [ 56.950429][ T6889] ? kfree+0x212/0x2a0 [ 56.954468][ T6889] ? sg_io+0xc72/0xf50 [ 56.958506][ T6889] ? lockdep_hardirqs_on+0x53/0x100 [ 56.963674][ T6889] sg_io+0x609/0xf50 [ 56.967554][ T6889] ? put_sg_io_hdr+0x6f0/0x6f0 [ 56.972289][ T6889] ? check_preemption_disabled+0x50/0x130 [ 56.977980][ T6889] ? lockdep_hardirqs_on+0x53/0x100 [ 56.983210][ T6889] scsi_cmd_ioctl+0x5ce/0x660 [ 56.987897][ T6889] ? sg_scsi_ioctl+0x830/0x830 [ 56.992639][ T6889] ? bpf_lsm_capable+0x5/0x10 [ 56.997839][ T6889] ? security_capable+0x8f/0xc0 [ 57.002677][ T6889] scsi_cmd_blk_ioctl+0xe1/0x130 [ 57.007608][ T6889] sd_ioctl_common+0x17e/0x280 [ 57.012340][ T6889] sd_ioctl+0x26/0xf0 [ 57.016292][ T6889] ? sd_compat_ioctl+0xf0/0xf0 [ 57.021027][ T6889] blkdev_ioctl+0x2a7/0x7f0 [ 57.025540][ T6889] ? blkdev_common_ioctl+0x18d0/0x18d0 [ 57.030972][ T6889] ? __fget_files+0x294/0x400 [ 57.035623][ T6889] block_ioctl+0xf9/0x140 [ 57.039935][ T6889] ? blkdev_read_iter+0x180/0x180 [ 57.044932][ T6889] __x64_sys_ioctl+0x193/0x200 [ 57.049668][ T6889] do_syscall_64+0x2d/0x70 [ 57.054060][ T6889] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.059924][ T6889] RIP: 0033:0x446059 [ 57.063793][ T6889] Code: e8 fc b8 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 0b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.083380][ T6889] RSP: 002b:00007f1d217b2d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 57.091765][ T6889] RAX: ffffffffffffffda RBX: 00000000006ddc48 RCX: 0000000000446059 [ 57.099709][ T6889] RDX: 00000000200046c0 RSI: 0000000000002285 RDI: 0000000000000004 [ 57.107664][ T6889] RBP: 00000000006ddc40 R08: 0000000000000000 R09: 0000000000000000 [ 57.115620][ T6889] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc4c [ 57.123565][ T6889] R13: 0000000020000000 R14: 00000000004ae698 R15: 0000000000000003 [ 57.131511][ T6889] Modules linked in: [ 57.135528][ T6889] ---[ end trace 2bb961546eae45fe ]--- [ 57.140991][ T6889] RIP: 0010:scsi_queue_rq+0x2155/0x3020 [ 57.146564][ T6889] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 98 0c 00 00 48 8b 83 58 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <0f> b6 14 11 48 89 c1 83 e1 07 38 ca 7f 08 84 d2 0f 85 53 0c 00 00 [ 57.166213][ T6889] RSP: 0018:ffffc90005627580 EFLAGS: 00010246 [ 57.172262][ T6889] RAX: 0000000000000000 RBX: ffff88801b6bd400 RCX: 0000000000000000 [ 57.180234][ T6889] RDX: dffffc0000000000 RSI: ffffffff84aaad82 RDI: 0000000000000003 [ 57.188238][ T6889] RBP: ffff888019670000 R08: 0000000000000001 R09: ffff88801b6bd7c0 [ 57.196229][ T6889] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 57.204222][ T6889] R13: ffff88801b6bd658 R14: ffff8881341bc000 R15: 0000000000000000 [ 57.212179][ T6889] FS: 00007f1d217b3700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 [ 57.221112][ T6889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.227718][ T6889] CR2: 00005617bf6e4410 CR3: 000000001f08b000 CR4: 00000000001506e0 [ 57.235707][ T6889] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.243705][ T6889] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.251661][ T6889] Kernel panic - not syncing: Fatal exception [ 57.258857][ T6889] Kernel Offset: disabled [ 57.263168][ T6889] Rebooting in 86400 seconds..