watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.4:6997] Modules linked in: irq event stamp: 7322427 hardirqs last enabled at (7322426): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7322427): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (7255268): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (7255271): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 6997 Comm: syz-executor.4 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa8d/0x2130 Code: 00 00 00 00 00 fc ff df 48 c1 e9 03 48 c1 e8 03 0f b6 04 10 0f b6 14 11 4c 89 c9 83 e1 07 38 c8 0f 9e c1 84 c0 0f 95 c0 84 c1 <0f> 85 ce 12 00 00 41 83 e7 07 44 38 fa 0f 9e c1 84 d2 0f 95 c0 84 RSP: 0018:ffff88806cf096d0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff88806cf09840 RDI: ffff88806cf09808 RBP: ffff88806cf097f8 R08: ffffffff86048522 R09: ffffffff86048526 R10: ffffed100d9e1301 R11: ffff88806cf097e0 R12: ffff88806cf097e1 R13: ffff88806cf09800 R14: ffff88806cf097a0 R15: ffffffff86048527 FS: 00007f4dbf326700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055abf3624180 CR3: 0000000034f86000 CR4: 0000000000350ee0 Call Trace: __unwind_start+0x513/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc_node+0x187/0x310 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:kernel_text_address+0x11/0xc0 Code: 00 eb bb 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 48 89 fd 48 83 ec 08 e8 3f ff ff ff <85> c0 74 0f b8 01 00 00 00 48 83 c4 08 5d e9 00 c7 25 03 e8 d7 ec RSP: 0018:ffff88801a52f2e0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 00007f4dc1db0b19 RCX: 1ffffffff0ba1340 RDX: 0000000000000000 RSI: ffffffff81007b70 RDI: 0000000000000007 RBP: 00007f4dc1db0b19 R08: 0000000000000007 R09: ffffffffff600000 R10: 00007f4dc1db0000 R11: 0000000000038001 R12: ffff88801a52f3e8 R13: 0000000000000000 R14: ffff888047595040 R15: 00000000000000f0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc+0x46/0xc0 __register_sysctl_table+0x116/0x1150 nf_conntrack_pernet_init+0x5b1/0x830 ops_init+0xbb/0x6c0 setup_net+0x40c/0x9d0 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2a5e/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f4dc1db0b19 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:00007f4dbf326188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f4dc1ec3f60 RCX: 00007f4dc1db0b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f4dc1e0af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe640e03cf R14: 00007f4dbf326300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6998 Comm: syz-executor.6 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:check_preemption_disabled+0xa/0x180 Code: ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 56 41 55 49 89 f5 41 54 55 <48> 89 fd 53 0f 1f 44 00 00 65 44 8b 25 41 37 c1 7b 65 8b 1d 36 37 RSP: 0018:ffff88806ce09338 EFLAGS: 00000006 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff0a55d18 RDX: 0000000000000001 RSI: ffffffff849f05a0 RDI: ffffffff849f05e0 RBP: 1ffff1100d9c1274 R08: 0000000000000000 R09: ffffffff85d0c217 R10: fffffbfff0ba1842 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff849f05a0 R14: 0000000000000000 R15: ffff88806ce2b8c0 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055abf35f5180 CR3: 0000000005426000 CR4: 0000000000350ef0 Call Trace: rcu_lockdep_current_cpu_online+0x39/0x140 rcu_read_lock_sched_held+0x2d/0x80 lock_release+0x56b/0x760 _raw_spin_unlock_irqrestore+0x1a/0x60 hrtimer_interrupt+0x360/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x348/0x2130 Code: 8e c7 15 00 00 41 c6 46 40 01 49 c7 c0 00 4b 4c 85 48 b8 00 00 00 00 00 fc ff df 4d 8d 48 04 4c 89 ca 48 c1 ea 03 0f b6 04 02 <4c> 89 ca 83 e2 07 38 d0 7f 08 84 c0 0f 85 e4 14 00 00 41 0f b6 40 RSP: 0018:ffff88806ce095f0 EFLAGS: 00000216 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff817d6141 RDX: 1ffffffff0c1ec2b RSI: ffffffff860f6138 RDI: ffffffff85dc3ea0 RBP: ffff88806ce096c8 R08: ffffffff860f6156 R09: ffffffff860f615a R10: ffffed100d9c12db R11: 0000000000038001 R12: ffff88806ce096b1 R13: ffff88806ce096d0 R14: ffff88806ce09670 R15: ffffffff817d6141 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:write_comp_data+0x3c/0x90 Code: 81 e6 00 01 00 00 65 48 8b 14 25 80 89 03 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 14 14 00 00 85 c0 74 4f 8b 82 f0 13 00 00 <83> f8 03 75 44 48 8b 82 f8 13 00 00 8b 92 f4 13 00 00 48 8b 38 48 RSP: 0018:ffff888037def580 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00000000000001fe RCX: ffffffff816337ea RDX: ffff888016808000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: ffff8880196dd528 R08: 0000000000000004 R09: 00000000000001fe R10: 00000000000000a3 R11: 0000000000000001 R12: 0000000000000008 R13: dffffc0000000000 R14: 00000000000000a3 R15: ffffea0000e9fec0 release_pages+0x18a/0x1040 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x164b/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f1028d5ba04 Code: Unable to access opcode bytes at 0x7f1028d5b9da. RSP: 002b:00007f102631dcc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: fffffffffffffffe RBX: 6666666666666667 RCX: 00007f1028d5ba04 RDX: 0000000000000000 RSI: 00007f102631dd60 RDI: 00000000ffffff9c RBP: 00007f102631dd60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffd2f9b8fbf R14: 00007f102631e300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 7 bytes skipped: 0: df 48 c1 fisttps -0x3f(%rax) 3: e9 03 48 c1 e8 jmpq 0xe8c1480b 8: 03 0f add (%rdi),%ecx a: b6 04 mov $0x4,%dh c: 10 0f adc %cl,(%rdi) e: b6 14 mov $0x14,%dh 10: 11 4c 89 c9 adc %ecx,-0x37(%rcx,%rcx,4) 14: 83 e1 07 and $0x7,%ecx 17: 38 c8 cmp %cl,%al 19: 0f 9e c1 setle %cl 1c: 84 c0 test %al,%al 1e: 0f 95 c0 setne %al 21: 84 c1 test %al,%cl * 23: 0f 85 ce 12 00 00 jne 0x12f7 <-- trapping instruction 29: 41 83 e7 07 and $0x7,%r15d 2d: 44 38 fa cmp %r15b,%dl 30: 0f 9e c1 setle %cl 33: 84 d2 test %dl,%dl 35: 0f 95 c0 setne %al 38: 84 .byte 0x84