watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:8536] Modules linked in: irq event stamp: 7415603 hardirqs last enabled at (7415602): [] asm_sysvec_x86_platform_ipi-0xa/0x20 hardirqs last disabled at (7415603): [] sysvec_apic_timer_interrupt+0xb/0xd0 softirqs last enabled at (7405762): [] __irq_exit_rcu+0x11b/0x190 softirqs last disabled at (7405765): [] __irq_exit_rcu+0x11b/0x190 CPU: 0 PID: 8536 Comm: syz-executor.6 Not tainted 6.1.0-rc1-next-20221019 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0xa/0x170 Code: e9 52 fd ff ff e8 b6 86 fc 02 cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 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:ffff88806ce09678 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: ffffffff81375430 RCX: 0000000000000000 RDX: 1ffff1100d9c12db RSI: ffffffff817b3b72 RDI: ffff88806ce09748 RBP: ffff88806ce09718 R08: ffffffff85cf4720 R09: ffffffff85cf4724 R10: ffffed100d9c12dd R11: ffff88806ce096c0 R12: ffff88806ce09748 R13: 0000000000000000 R14: ffff888010308000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ee41430180 CR3: 000000001dd48000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x73/0x100 stack_trace_save+0x8c/0xd0 kasan_save_stack+0x1e/0x50 kasan_set_track+0x21/0x40 __kasan_slab_alloc+0x58/0x80 kmem_cache_alloc+0x1a9/0x3f0 __create_object+0x3d/0xc20 kmem_cache_alloc_node+0x252/0x410 __alloc_skb+0x210/0x310 skb_copy+0x139/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1370 mac80211_hwsim_tx_frame+0x1ee/0x2b0 mac80211_hwsim_beacon_tx+0x562/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x80 Code: 81 e1 00 01 00 00 65 48 8b 14 25 00 75 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 2c 14 00 00 85 c0 74 2b 8b 82 08 14 00 00 <83> f8 02 75 20 48 8b 8a 10 14 00 00 8b 92 0c 14 00 00 48 8b 01 48 RSP: 0018:ffff8880186df640 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888010308000 RSI: ffffffff816bdfe2 RDI: 0000000000000005 RBP: ffff88801041fb30 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880186dfa30 R13: 0000000000000002 R14: dffffc0000000000 R15: ffff8880186df770 unmap_page_range+0xd12/0x2a20 unmap_single_vma+0x190/0x2b0 unmap_vmas+0x21e/0x380 exit_mmap+0x154/0x690 mmput+0xd1/0x3a0 do_exit+0xa2e/0x2800 do_group_exit+0xd0/0x2b0 get_signal+0x2195/0x22e0 arch_do_signal_or_restart+0x89/0x1bf0 exit_to_user_mode_prepare+0x131/0x1b0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb0ce405b19 Code: Unable to access opcode bytes at 0x7fb0ce405aef. RSP: 002b:00007fb0cb97b188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce RAX: 0000000000000000 RBX: 00007fb0ce518f60 RCX: 00007fb0ce405b19 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000009 RBP: 00007fb0ce45ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe17209c6f R14: 00007fb0cb97b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8547 Comm: syz-executor.1 Not tainted 6.1.0-rc1-next-20221019 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__this_cpu_preempt_check+0x1/0x20 Code: c6 80 db 7e 84 48 c7 c7 c0 db 7e 84 e9 58 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <48> 89 fd 0f 1f 44 00 00 48 89 ee 48 c7 c7 00 dc 7e 84 5d e9 27 fe RSP: 0018:ffff88806cf09200 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff85207860 RDI: ffffffff8466f800 RBP: ffffffff85207860 R08: 0000000000000000 R09: ffffffff8590a957 R10: fffffbfff0b2152a R11: 0000000000000001 R12: ffff888044dd1ac0 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888044dd24d8 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ee414120c0 CR3: 000000001dd48000 CR4: 0000000000350ee0 Call Trace: lock_is_held_type+0xd7/0x140 rcu_read_lock_sched_held+0x3e/0x90 lock_release+0x547/0x760 perf_output_begin_forward+0x727/0xb10 perf_event_output_forward+0xf2/0x290 __perf_event_overflow+0x191/0x550 perf_swevent_hrtimer+0x35d/0x3e0 __hrtimer_run_queues+0x184/0xb60 hrtimer_interrupt+0x315/0x780 __sysvec_apic_timer_interrupt+0x144/0x510 sysvec_apic_timer_interrupt+0x3b/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:queued_spin_lock_slowpath+0xac/0xc90 Code: b8 00 00 00 00 00 fc ff df 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 ef e8 49 b4 45 fd 41 0f b6 45 00 <41> 38 c4 7c 08 84 c0 0f 85 1c 0a 00 00 8b 5d 00 85 db 75 62 be 04 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8435fe07 RDX: fffffbfff0ac8159 RSI: 0000000000000004 RDI: ffffffff85640ac0 RBP: ffffffff85640ac0 R08: 0000000000000000 R09: ffffffff85640ac3 R10: fffffbfff0ac8158 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0ac8158 R14: 0000000000000001 R15: 1ffff1100d9e1346 do_raw_spin_lock+0x1dc/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1370 mac80211_hwsim_tx_frame+0x1ee/0x2b0 mac80211_hwsim_beacon_tx+0x562/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:lock_release+0x3dd/0x760 Code: ff ff ff ff 65 0f c1 05 f1 ee d6 7e 83 f8 01 0f 85 b1 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c5 48 c7 45 00 00 00 00 00 c7 45 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff88803447f570 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: c7c95c5d6bd21a7c RCX: ffff88803447f5c0 RDX: 1ffff110089ba485 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 1ffff1100688feb0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000002 R14: ffff888044dd2430 R15: ffff888044dd1ac0 _raw_spin_unlock+0x12/0x50 unmap_page_range+0xd4e/0x2a20 unmap_single_vma+0x190/0x2b0 unmap_vmas+0x21e/0x380 exit_mmap+0x154/0x690 mmput+0xd1/0x3a0 do_exit+0xa2e/0x2800 do_group_exit+0xd0/0x2b0 get_signal+0x2195/0x22e0 arch_do_signal_or_restart+0x89/0x1bf0 exit_to_user_mode_prepare+0x131/0x1b0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f6e4c36db19 Code: Unable to access opcode bytes at 0x7f6e4c36daef. RSP: 002b:00007f6e498e3218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f6e4c480f68 RCX: 00007f6e4c36db19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6e4c480f68 RBP: 00007f6e4c480f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6e4c480f6c R13: 00007ffcb5928e5f R14: 00007f6e498e3300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: e9 52 fd ff ff jmpq 0xfffffd57 5: e8 b6 86 fc 02 callq 0x2fc86c0 a: cc int3 b: cc int3 c: cc int3 d: cc int3 e: cc int3 f: cc int3 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 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