watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.7:7473] Modules linked in: irq event stamp: 4059895 hardirqs last enabled at (4059894): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4059895): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4057078): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (4057081): [] irq_exit_rcu+0x11f/0x190 CPU: 1 PID: 7473 Comm: syz-executor.7 Not tainted 6.2.0-rc4-next-20230119 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cfg80211_rx_mgmt_ext+0x77/0x700 Code: a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 09 06 00 00 49 8d 7d 08 48 8b 9d a8 00 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 RSP: 0018:ffff88806cf097e0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffffff84de7200 RCX: 0000000000000100 RDX: 1ffff110086350ed RSI: ffffffff83f5535a RDI: ffff888006970b58 RBP: ffff8880431a86c0 R08: 0000000000000003 R09: 00000000000000d0 R10: 0000000000000080 R11: 0000000000000001 R12: ffff88806cf09d78 R13: ffff888006970b50 R14: ffff88806cf099b8 R15: dffffc0000000000 FS: 00007f4b56f15700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556b9e098 CR3: 0000000037f42000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee80211_rx_handlers+0x47ef/0xa6d0 ieee80211_prepare_and_rx_handle+0x1c8e/0x58a0 ieee80211_rx_for_interface+0x112/0x200 ieee80211_rx_list+0x1d4a/0x2cf0 ieee80211_rx_napi+0xde/0x3c0 ieee80211_tasklet_handler+0xd8/0x140 tasklet_action_common.constprop.0+0x208/0x2f0 __do_softirq+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__slab_free+0x87/0x380 Code: c3 66 85 db 74 05 45 84 db 74 06 80 3c 24 00 74 3c 41 8b 7d 08 4c 8b 4c 24 48 4d 89 f0 4c 89 e2 48 89 ee e8 5b b7 ff ff 84 c0 <74> a5 44 0f b6 24 24 45 84 e4 0f 84 cd 00 00 00 48 83 c4 60 5b 5d RSP: 0018:ffff88803d8a7530 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 00000000000d000c RCX: 00000000800d000c RDX: 00000000000d000d RSI: ffffea0000584c00 RDI: 0000000040000000 RBP: ffffea0000584c00 R08: ffff888016130e40 R09: 00000000800d000c R10: ffffea0000584c00 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800844f780 R14: ffff888016130e40 R15: ffff888016130e40 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x300 ptlock_alloc+0x21/0x70 pte_alloc_one+0x6c/0x200 __pte_alloc+0x6d/0x210 copy_page_range+0x188e/0x37d0 dup_mmap+0xa4a/0xfc0 copy_process+0x3b05/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_fork+0x80/0xc0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f4b5999fb19 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:00007f4b56f15188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f4b59ab2f60 RCX: 00007f4b5999fb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f4b599f9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcdd797eaf R14: 00007f4b56f15300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7469 Comm: syz-executor.4 Not tainted 6.2.0-rc4-next-20230119 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0x8a/0x5e90 Code: 24 08 48 89 44 24 30 48 01 d0 48 c7 84 24 a0 00 00 00 20 b6 2b 81 c7 00 f1 f1 f1 f1 c7 40 04 f1 f1 04 f2 c7 40 08 00 f3 f3 f3 <65> 48 8b 04 25 28 00 00 00 48 89 84 24 08 01 00 00 31 c0 48 c7 c0 RSP: 0018:ffff88806ce08e20 EFLAGS: 00000082 RAX: ffffed100d9c11d6 RBX: 1ffff1100d9c11f4 RCX: 0000000000000002 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8560af60 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: fffffbfff0ba227a R11: 0000000000000001 R12: ffff888038f60000 R13: 0000000000000000 R14: ffffffff8560af60 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9dbbb5f010 CR3: 00000000069f2000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lock_acquire.part.0+0x120/0x340 perf_event_output_forward+0xa9/0x3c0 __perf_event_overflow+0x3f3/0x760 perf_swevent_hrtimer+0x36a/0x3e0 __hrtimer_run_queues+0x17f/0xcb0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x5ba/0x2130 Code: c1 ea 03 80 3c 02 00 0f 85 4f 19 00 00 4c 89 c0 49 8b 4e 48 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 0f b6 34 10 49 8d 40 01 <48> 89 c7 48 c1 ef 03 0f b6 14 17 4c 89 c7 83 e7 07 40 38 fe 40 0f RSP: 0018:ffff88806ce09640 EFLAGS: 00000213 RAX: ffffffff8647c5ad RBX: 0000000000000001 RCX: ffff88804468f5a8 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8601e2c4 RBP: ffff88806ce09718 R08: ffffffff8647c5ac R09: ffffffff8647c5b0 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffff88806ce09701 R13: ffff88806ce09720 R14: ffff88806ce096c0 R15: ffffffff8647c5b1 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc00 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d3/0xb10 __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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 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:ffff88804468f658 EFLAGS: 00000246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff816d6007 RDX: ffff888038f60000 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 1ffff110088d1ecd R08: 0000000000000007 R09: 0000000000000000 R10: 800000003847a007 R11: 0000000000000001 R12: ffff88800ee2ba90 R13: 00007f980c734000 R14: 800000003847a007 R15: 00007f980c800000 vm_normal_page+0x97/0x2e0 unmap_page_range+0xbed/0x2d90 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x225/0x370 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+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f980e5afb19 Code: Unable to access opcode bytes at 0x7f980e5afaef. RSP: 002b:00007f980bb25188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: fffffffffffffff4 RBX: 00007f980e6c2f60 RCX: 00007f980e5afb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f980e609f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdce2ec8af R14: 00007f980bb25300 R15: 0000000000022000 Process accounting resumed Process accounting resumed ---------------- Code disassembly (best guess): 0: a8 00 test $0x0,%al 2: 00 00 add %al,(%rax) 4: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax b: fc ff df e: 48 89 fa mov %rdi,%rdx 11: 48 c1 ea 03 shr $0x3,%rdx 15: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 19: 0f 85 09 06 00 00 jne 0x628 1f: 49 8d 7d 08 lea 0x8(%r13),%rdi 23: 48 8b 9d a8 00 00 00 mov 0xa8(%rbp),%rbx * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 89 fa mov %rdi,%rdx 37: 48 c1 ea 03 shr $0x3,%rdx 3b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 3f: 84 .byte 0x84