watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.4:3881] Modules linked in: irq event stamp: 5491451 hardirqs last enabled at (5491450): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5491451): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (5421508): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5421511): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 3881 Comm: syz-executor.4 Not tainted 5.10.229 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x4a/0x160 kernel/stacktrace.c:85 Code: 04 02 84 c0 74 08 3c 03 0f 8e e7 00 00 00 48 8d 7b 08 8b 6b 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e ad 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 RSP: 0018:ffff88806ce09870 EFLAGS: 00000212 RAX: 0000000000000000 RBX: ffff88806ce09948 RCX: 1ffff1100d9c1301 RDX: 1ffff1100d9c132a RSI: ffffffff83132a2f RDI: ffff88806ce09950 RBP: 0000000000000006 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9c12ff R12: ffff88806ce09948 R13: 0000000000000000 R14: ffff8880452c3480 R15: ffff888047297500 FS: 00007fdb15771700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f0c775344 CR3: 000000000eeec000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x73/0xf0 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x110/0x160 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1542 [inline] slab_free_freelist_hook+0xa9/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x2d0 mm/slub.c:3165 kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:637 __kfree_skb net/core/skbuff.c:694 [inline] consume_skb net/core/skbuff.c:849 [inline] consume_skb+0x11d/0x2b0 net/core/skbuff.c:843 mac80211_hwsim_tx_frame+0x15a/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1717 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:put_cpu_partial+0x79/0x130 mm/slub.c:2411 Code: 00 65 48 03 35 00 d7 95 7e 48 89 ef e8 10 fe ff ff 4d 85 f6 0f 85 83 00 00 00 41 55 9d 31 c0 44 89 e6 31 ff 31 c9 0f b7 53 2a <44> 0f b7 43 28 89 73 10 48 89 4b 08 81 e2 ff 7f 00 00 44 29 c2 01 RSP: 0018:ffff8880450bf6b0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffea0000747600 RCX: 0000000000000000 RDX: 0000000000008012 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88800804d640 R08: 0000000000000000 R09: ffffffff816cb701 R10: ffff88801d1d90e0 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000080000000 R14: ffffffff80000000 R15: ffff88801cfd3440 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 kmalloc_array include/linux/slab.h:592 [inline] kcalloc include/linux/slab.h:603 [inline] ext4_find_extent+0xa77/0xd70 fs/ext4/extents.c:906 ext4_ext_map_blocks+0x1c8/0x5830 fs/ext4/extents.c:4159 ext4_map_blocks+0x8e1/0x1910 fs/ext4/inode.c:599 ext4_append+0x1b8/0x4e0 fs/ext4/namei.c:75 ext4_init_new_dir+0x25e/0x4d0 fs/ext4/namei.c:2876 ext4_mkdir+0x3c1/0xb10 fs/ext4/namei.c:2921 vfs_mkdir+0x493/0x750 fs/namei.c:3706 do_mkdirat+0x150/0x2b0 fs/namei.c:3728 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fdb181fac27 Code: 73 01 c3 48 c7 c1 bc ff ff ff 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 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdb15770fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdb181fac27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000180 RBP: 00007fdb15771040 R08: 0000000000000000 R09: 0000000000100000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000180 R14: 00007fdb15771000 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3912 Comm: syz-executor.1 Not tainted 5.10.229 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:234 [inline] RIP: 0010:read_tsc+0x3/0x20 arch/x86/kernel/tsc.c:1094 Code: cc cc cc cc cc cc cc 8b 05 66 40 5f 04 e9 15 20 18 03 0f 1f 44 00 00 e9 0b 20 18 03 66 66 2e 0f 1f 84 00 00 00 00 00 0f 01 f9 <66> 90 48 c1 e2 20 48 09 d0 e9 ef 1f 18 03 66 66 2e 0f 1f 84 00 00 RSP: 0018:ffff88806cf09670 EFLAGS: 00000046 RAX: 000000003f237fac RBX: 0000000000046098 RCX: 0000000000000001 RDX: 00000000000000ad RSI: ffffffff8131e7be RDI: ffffffff84e88da0 RBP: ffff88806cf2ea88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000003d729f58c5 R13: dffffc0000000000 R14: ffff88806cf2eba8 R15: 0000000000000000 FS: 00007fbaacbc7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa5b741e6f4 CR3: 0000000045ec6000 CR4: 0000000000350ee0 Call Trace: tk_clock_read kernel/time/timekeeping.c:195 [inline] timekeeping_get_delta kernel/time/timekeeping.c:289 [inline] timekeeping_get_ns kernel/time/timekeeping.c:396 [inline] ktime_get_update_offsets_now+0x106/0x360 kernel/time/timekeeping.c:2301 hrtimer_update_base kernel/time/hrtimer.c:631 [inline] hrtimer_interrupt+0x10e/0x9b0 kernel/time/hrtimer.c:1694 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0xfb/0x310 arch/x86/kernel/apic/apic.c:1112 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline] sysvec_apic_timer_interrupt+0x3e/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:kasan_save_stack+0x1d/0x40 mm/kasan/common.c:49 Code: f9 af b3 02 66 0f 1f 84 00 00 00 00 00 41 54 31 d2 41 89 fc be 40 00 00 00 48 81 ec 00 02 00 00 48 89 e7 e8 25 95 c3 ff 89 c6 <48> 89 e7 e8 bb 27 91 00 44 89 e2 89 c6 48 89 e7 e8 1e 29 91 00 48 RSP: 0018:ffff88806cf09870 EFLAGS: 00000287 RAX: 0000000000000029 RBX: ffff888046f22868 RCX: 0000000000000000 RDX: 1ffff11003c39127 RSI: 0000000000000029 RDI: ffff88801e1c8938 RBP: 0000000000000a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000a20 R13: 0000000000000000 R14: ffff8880083fda00 R15: 00000000000000e8 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc9/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] kmem_cache_alloc_node+0x14b/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:199 skb_copy+0x183/0x350 net/core/skbuff.c:1529 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1499 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:qlink_free mm/kasan/quarantine.c:151 [inline] RIP: 0010:qlist_free_all+0x3f/0xe0 mm/kasan/quarantine.c:170 Code: a3 00 00 00 49 89 fc 41 bd 00 00 00 80 49 c7 c6 00 00 00 80 48 bd 00 00 00 00 00 fc ff df eb 2c 48 63 87 c0 00 00 00 4c 8b 3e <48> c7 c2 a5 b7 6c 81 48 29 c6 48 89 f0 48 c1 e8 03 c6 04 28 fb e8 RSP: 0018:ffff8880464f7150 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffffffffff RDX: 0000000000000000 RSI: ffff88800e344a20 RDI: ffff88800804d640 RBP: dffffc0000000000 R08: 0000000000000011 R09: ffffffff816cb701 R10: ffff88801950f440 R11: 0000000000000001 R12: ffff8880464f7188 R13: 0000000080000000 R14: ffffffff80000000 R15: ffff88801811ea20 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] kmem_cache_alloc_node+0x14b/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:199 alloc_skb include/linux/skbuff.h:1099 [inline] alloc_skb_with_frags+0x92/0x570 net/core/skbuff.c:5920 sock_alloc_send_pskb+0x7af/0x930 net/core/sock.c:2375 packet_alloc_skb net/packet/af_packet.c:2948 [inline] packet_snd net/packet/af_packet.c:3043 [inline] packet_sendmsg+0x182e/0x5400 net/packet/af_packet.c:3133 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg net/socket.c:663 [inline] sock_sendmsg+0x319/0x390 net/socket.c:686 sock_no_sendpage+0x12c/0x1a0 net/core/sock.c:2880 kernel_sendpage.part.0+0x146/0x290 net/socket.c:3548 kernel_sendpage net/socket.c:3545 [inline] sock_sendpage+0xe5/0x140 net/socket.c:963 pipe_to_sendpage+0x2af/0x380 fs/splice.c:364 splice_from_pipe_feed fs/splice.c:418 [inline] __splice_from_pipe+0x43d/0x890 fs/splice.c:562 splice_from_pipe fs/splice.c:597 [inline] generic_splice_sendpage+0xd5/0x140 fs/splice.c:743 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0x10f/0x170 fs/splice.c:933 splice_direct_to_actor+0x387/0x980 fs/splice.c:888 do_splice_direct+0x1c4/0x290 fs/splice.c:976 do_sendfile+0x553/0x11e0 fs/read_write.c:1257 __do_sys_sendfile64 fs/read_write.c:1318 [inline] __se_sys_sendfile64 fs/read_write.c:1304 [inline] __x64_sys_sendfile64+0x1d1/0x210 fs/read_write.c:1304 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fbaaf672b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbaacbc7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fbaaf786020 RCX: 00007fbaaf672b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007fbaaf6ccf6d R Lost 2 message(s)! BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 34s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 pending: kfree_rcu_monitor, e1000_watchdog pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 pending: vmstat_shepherd, check_corruption workqueue events_unbound: flags=0x2 pwq 4: cpus=0-1 flags=0x4 nice=0 active=6/512 refcnt=8 in-flight: 323:io_ring_exit_work, 59:io_ring_exit_work, 65:linkwatch_event linkwatch_event, 905:call_usermodehelper_exec_work, 330:call_usermodehelper_exec_work workqueue events_power_efficient: flags=0x80 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: neigh_periodic_work pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 pending: do_cache_clean, neigh_periodic_work, gc_worker workqueue events_freezable_power_: flags=0x84 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: disk_events_workfn workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: vmstat_update pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 pending: vmstat_update workqueue writeback: flags=0x4a pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 pending: wb_workfn workqueue kblockd: flags=0x18 pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 pending: blk_mq_timeout_work workqueue ipv6_addrconf: flags=0x40008 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=4 pending: addrconf_dad_work inactive: addrconf_dad_work, addrconf_dad_work pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=10 in-flight: 3855:addrconf_dad_work inactive: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work workqueue phy2: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy3: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy4: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy5: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy6: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy7: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy8: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy9: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy10: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy11: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy12: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy13: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy14: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy15: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy16: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work workqueue phy17: flags=0xa0002 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 pending: ieee80211_iface_work pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=34s workers=4 idle: 5 12 68 pool 4: cpus=0-1 flags=0x4 nice=0 hung=34s workers=11 idle: 332 328 334 64 7 906 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready audit: type=1400 audit(1732016050.196:10): avc: denied { map } for pid=3941 comm="syz-executor.3" path="/proc/3941/wchan" dev="proc" ino=14360 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=file permissive=1 EXT4-fs (loop2): VFS: Can't find ext4 filesystem FAT-fs (loop2): Unrecognized mount option "fowner=00000000000000060928" or missing value EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem ---------------- Code disassembly (best guess): 0: 04 02 add $0x2,%al 2: 84 c0 test %al,%al 4: 74 08 je 0xe 6: 3c 03 cmp $0x3,%al 8: 0f 8e e7 00 00 00 jle 0xf5 e: 48 8d 7b 08 lea 0x8(%rbx),%rdi 12: 8b 6b 10 mov 0x10(%rbx),%ebp 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 2a: 84 c0 test %al,%al <-- trapping instruction 2c: 74 08 je 0x36 2e: 3c 03 cmp $0x3,%al 30: 0f 8e ad 00 00 00 jle 0xe3 36: 31 c0 xor %eax,%eax 38: 3b 6b 08 cmp 0x8(%rbx),%ebp 3b: 0f .byte 0xf 3c: 83 .byte 0x83 3d: 81 .byte 0x81