watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.3:4240] Modules linked in: irq event stamp: 4178553 hardirqs last enabled at (4178552): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4178553): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (4152160): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4152163): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4240 Comm: syz-executor.3 Not tainted 5.10.154 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0xa/0x160 kernel/stacktrace.c:82 Code: e8 cb 66 10 00 48 c7 c1 e0 38 48 84 31 d2 be 80 01 00 00 48 c7 c7 e0 36 48 84 e9 a1 2e 62 00 cc 48 b8 00 00 00 00 00 fc ff df <55> 53 48 89 fb 48 83 c7 10 48 89 fa 48 c1 ea 03 48 83 ec 08 0f b6 RSP: 0018:ffff88806ce09740 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: ffffffff812fc330 RCX: 1ffff1100d9c1201 RDX: 1ffff1100d9c12f2 RSI: ffffffff83bdacc0 RDI: ffff88806ce09800 RBP: ffff88806ce097d0 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9c12d6 R12: ffff88806ce09800 R13: 0000000000000000 R14: ffff88800fb18000 R15: 00000000000000e0 FS: 00007f72ea57b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d225000 CR3: 00000000468b4000 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 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/0x370 mm/slub.c:2932 __alloc_skb+0x6d/0x620 net/core/skbuff.c:198 skb_copy+0x137/0x2f0 net/core/skbuff.c:1522 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1494 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1711 mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1765 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1788 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x86b 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:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:lock_acquire+0x1dd/0x490 kernel/locking/lockdep.c:5569 Code: 02 00 00 41 52 9d 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 a8 00 00 00 <65> 48 2b 04 25 28 00 00 00 0f 85 5b 02 00 00 48 81 c4 b0 00 00 00 RSP: 0018:ffff888044187748 EFLAGS: 00000286 RAX: 72778f224639c900 RBX: ffffed1008830eeb RCX: 00000000ef9df767 RDX: 1ffff11001f63115 RSI: f059bce437243ed8 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff86799667 R10: 0000000000000246 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff84ff81a0 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:258 [inline] rcu_read_lock include/linux/rcupdate.h:651 [inline] __is_insn_slot_addr+0x3f/0x260 kernel/kprobes.c:299 is_kprobe_optinsn_slot include/linux/kprobes.h:336 [inline] kernel_text_address kernel/extable.c:149 [inline] kernel_text_address+0xdf/0x120 kernel/extable.c:120 __kernel_text_address+0x9/0x40 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:323 [inline] unwind_get_return_address+0x55/0xa0 arch/x86/kernel/unwind_orc.c:318 arch_stack_walk+0x99/0xf0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 __save_stack_trace mm/kmemleak.c:563 [inline] create_object.isra.0+0x372/0xa20 mm/kmemleak.c:618 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x159/0x360 mm/slub.c:2909 kmem_cache_zalloc include/linux/slab.h:654 [inline] lsm_file_alloc security/security.c:571 [inline] security_file_alloc+0x34/0x170 security/security.c:1472 __alloc_file+0xb6/0x320 fs/file_table.c:106 alloc_empty_file+0x6d/0x170 fs/file_table.c:151 path_openat+0xde/0x26d0 fs/namei.c:3350 do_filp_open+0x17e/0x3d0 fs/namei.c:3391 do_sys_openat2+0x171/0x420 fs/open.c:1180 do_sys_open fs/open.c:1196 [inline] __do_sys_openat fs/open.c:1212 [inline] __se_sys_openat fs/open.c:1207 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1207 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f72ecfb8a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007f72ea57acc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f72ed118f60 RCX: 00007f72ecfb8a04 RDX: 0000000000000002 RSI: 00007f72ea57ad60 RDI: 00000000ffffff9c RBP: 00007f72ea57ad60 R08: 0000000000000000 R09: 000000000000000d R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007ffd173ee00f R14: 00007f72ea57b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.154 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:19 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:100 [inline] RIP: 0010:queued_spin_lock_slowpath+0x122/0x8c0 kernel/locking/qspinlock.c:326 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 09 07 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 60 e2 f8 02 f3 90 73 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e1 00 00 RSP: 0018:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff87934da0 RCX: ffffffff81275d27 RDX: fffffbfff0f269b5 RSI: 0000000000000004 RDI: ffffffff87934da0 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff87934da3 R10: fffffbfff0f269b4 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f269b4 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fbbd837678 CR3: 0000000019ed8000 CR4: 0000000000350ee0 Call Trace: queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x1dc/0x260 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x695/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1445 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1711 mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1765 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1788 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x86b 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:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:default_idle+0xe/0x20 arch/x86/kernel/process.c:690 Code: 89 fd e9 4b ff ff ff 4c 89 e7 e8 4d e5 89 fd eb 8f 66 66 2e 0f 1f 84 00 00 00 00 00 e9 07 00 00 00 0f 00 2d 84 59 60 00 fb f4 fd 57 3e 00 cc cc cc cc cc cc cc cc cc cc cc cc cc 41 55 41 54 RSP: 0018:ffff88800856fe78 EFLAGS: 00000206 RAX: ffffffff83e1e7f0 RBX: ffff88800852b300 RCX: ffffffff83e0653c RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e1ebb3 RBP: ffffed10010a5660 R08: 0000000000000001 R09: ffff88806cf3c12b R10: ffffed100d9e7825 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff85670c88 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x8b/0xd0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3ad/0x520 kernel/sched/idle.c:300 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396 secondary_startup_64_no_verify+0xc2/0xcb Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: e8 cb 66 10 00 callq 0x1066d0 5: 48 c7 c1 e0 38 48 84 mov $0xffffffff844838e0,%rcx c: 31 d2 xor %edx,%edx e: be 80 01 00 00 mov $0x180,%esi 13: 48 c7 c7 e0 36 48 84 mov $0xffffffff844836e0,%rdi 1a: e9 a1 2e 62 00 jmpq 0x622ec0 1f: cc int3 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 55 push %rbp <-- trapping instruction 2b: 53 push %rbx 2c: 48 89 fb mov %rdi,%rbx 2f: 48 83 c7 10 add $0x10,%rdi 33: 48 89 fa mov %rdi,%rdx 36: 48 c1 ea 03 shr $0x3,%rdx 3a: 48 83 ec 08 sub $0x8,%rsp 3e: 0f .byte 0xf 3f: b6 .byte 0xb6