Bluetooth: hci1: command 0x0401 tx timeout Bluetooth: hci1: command 0x0401 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 Bluetooth: hci2: command 0x0406 tx timeout INFO: task syz-executor.5:8893 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28648 8893 8167 0x00000000 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007eff35291188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc136e837f R14: 00007eff35291300 R15: 0000000000022000 INFO: task syz-executor.2:8894 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28648 8894 7852 0x00000000 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007fba5d211188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd948d6e3f R14: 00007fba5d211300 R15: 0000000000022000 INFO: task syz-executor.4:8896 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 ieee802154 phy0 wpan0: encryption failed: -22 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ieee802154 phy1 wpan1: encryption failed: -22 syz-executor.4 D28648 8896 30021 0x00000000 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: Bad RIP value. RSP: 002b:00007f3a0f820188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffedcd0d30f R14: 00007f3a0f820300 R15: 0000000000022000 INFO: task syz-executor.1:8995 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28648 8995 8159 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007f34394aa188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe9fee940f R14: 00007f34394aa300 R15: 0000000000022000 INFO: task syz-executor.2:8998 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28648 8998 7852 0x00000000 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007fba5d211188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd948d6e3f R14: 00007fba5d211300 R15: 0000000000022000 INFO: task syz-executor.4:9033 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28648 9033 30021 0x00000000 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007f3a0f820188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffedcd0d30f R14: 00007f3a0f820300 R15: 0000000000022000 INFO: task syz-executor.5:9035 blocked for more than 140 seconds. Not tainted 4.19.204-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28648 9035 8167 0x00000000 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1015 [inline] __mutex_lock+0x604/0x1200 kernel/locking/mutex.c:1083 hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 hci_inquiry+0x693/0x910 net/bluetooth/hci_core.c:1310 hci_sock_ioctl+0x1a7/0x850 net/bluetooth/hci_sock.c:1053 sock_do_ioctl+0xcb/0x2d0 net/socket.c:1015 sock_ioctl+0x2ef/0x5d0 net/socket.c:1133 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007eff35291188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000020000200 RSI: 00000000800448f0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc136e837f R14: 00007eff35291300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 0000000087699ea5 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by syz-executor.2/8822: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.5/8893: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.2/8894: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.4/8896: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.1/8995: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.2/8998: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.4/9033: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 1 lock held by syz-executor.5/9035: #0: 000000000996f07a (&hdev->req_lock){+.+.}, at: hci_req_sync+0x33/0xc0 net/bluetooth/hci_request.c:275 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4695 Comm: systemd-journal Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:shmem_setattr+0x4e/0xc90 mm/shmem.c:1024 Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 84 0a 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 65 58 49 8d 7c 24 28 <48> 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 56 0a 00 00 48 b8 00 00 00 RSP: 0018:ffff8880a082fd30 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff8880a082fe20 RCX: ffffffff81a9c2bc RDX: 1ffff110145b4347 RSI: ffffffff818640cc RDI: ffff8880a0862128 RBP: ffff8880a082fd80 R08: ffffffff8cd39f78 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a0862100 R13: ffff8880a2da19e0 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fc3705c28c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc36d4ff000 CR3: 00000000a084e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: notify_change+0x70b/0xfc0 fs/attr.c:334 do_truncate+0x134/0x1f0 fs/open.c:63 do_sys_ftruncate+0x492/0x560 fs/open.c:194 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc36f884ec7 Code: 73 01 c3 48 8b 0d d1 5f 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 4d 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 5f 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffd771b3538 EFLAGS: 00000202 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007ffd771b3570 RCX: 00007fc36f884ec7 RDX: 00005559941c6e80 RSI: 0000000001000000 RDI: 0000000000000010 RBP: 00007ffd771b3568 R08: 0000000000000008 R09: 00005559941c725c R10: 00005559941c71e0 R11: 0000000000000202 R12: 00005559941c71e0 R13: 00007ffd771b3668 R14: 000055599385b958 R15: 0005ca289d7643d7 ---------------- Code disassembly (best guess), 5 bytes skipped: 0: df 48 89 fisttps -0x77(%rax) 3: fa cli 4: 48 c1 ea 03 shr $0x3,%rdx 8: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) c: 0f 85 84 0a 00 00 jne 0xa96 12: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 19: fc ff df 1c: 4d 8b 65 58 mov 0x58(%r13),%r12 20: 49 8d 7c 24 28 lea 0x28(%r12),%rdi * 25: 48 89 fa mov %rdi,%rdx <-- trapping instruction 28: 48 c1 ea 03 shr $0x3,%rdx 2c: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 30: 0f 85 56 0a 00 00 jne 0xa8c 36: 48 rex.W 37: b8 .byte 0xb8 38: 00 00 add %al,(%rax)