watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:7956] Modules linked in: irq event stamp: 5340311 hardirqs last enabled at (5340310): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5340311): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5255524): [] do_softirq+0xb1/0xe0 softirqs last disabled at (5255527): [] __irq_exit_rcu+0xcc/0x110 CPU: 0 PID: 7956 Comm: syz-executor.4 Not tainted 6.3.0-rc1-next-20230307 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:write_comp_data+0x32/0x90 Code: f8 65 8b 05 e8 23 b8 7e 89 c6 81 e6 00 01 00 00 65 48 8b 14 25 80 8a 03 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 0c 14 00 00 <85> c0 74 4f 8b 82 e8 13 00 00 83 f8 03 75 44 48 8b 82 f0 13 00 00 RSP: 0018:ffff88806ce09548 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffffffff85651100 RCX: ffffffff814bea0c RDX: ffff88804307b580 RSI: 0000000000000100 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 00007f8852fabb19 R13: 0000000000000000 R14: ffff88804307b580 R15: 0000000000092820 FS: 00007f8850521700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020010000 CR3: 0000000019db2000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x16c/0x290 kernel_text_address+0x48/0xc0 __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+0x59/0x70 kmem_cache_alloc+0x172/0x320 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x21f/0x330 kmalloc_reserve+0x169/0x270 __alloc_skb+0x129/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb08/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__local_bh_enable_ip+0xa9/0x110 Code: db 65 01 1d 71 91 ea 7e 65 8b 05 6a 91 ea 7e a9 00 ff ff 00 74 46 65 ff 0d 5c 91 ea 7e e8 bf 96 39 00 fb 65 8b 05 4f 91 ea 7e <85> c0 74 42 5b 5d e9 c0 4e 32 03 65 8b 05 71 8c e9 7e 85 c0 75 a1 RSP: 0018:ffff888044cff3d0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000fffffe01 RCX: ffffffff812cb98f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8118f931 RBP: ffffffff8391a1bd R08: 0000000000000001 R09: ffffffff87785a4f R10: fffffbfff0ef0b49 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888042839e90 R14: ffff888042839e98 R15: 0000000000000010 ip_finish_output2+0x73b/0x2120 ip_do_fragment+0x1e14/0x24e0 ip_fragment.constprop.0+0x16b/0x240 __ip_finish_output.part.0+0x883/0xd10 ip_output+0x2ec/0x8e0 ip_push_pending_frames+0x30b/0x5c0 raw_sendmsg+0x120d/0x2c80 inet_sendmsg+0x121/0x150 sock_sendmsg+0x19b/0x200 ____sys_sendmsg+0x74e/0x980 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1d0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f8852fabb19 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:00007f8850521188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f88530bef60 RCX: 00007f8852fabb19 RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000005 RBP: 00007f8853005f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffede12de2f R14: 00007f8850521300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc1-next-20230307 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc50 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 d5 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 4e 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff844b283b RDX: fffffbfff0b4b0d9 RSI: 0000000000000004 RDI: ffffffff85a586c0 RBP: ffffffff85a586c0 R08: 0000000000000000 R09: ffffffff85a586c3 R10: fffffbfff0b4b0d8 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4b0d8 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556de9c30648 CR3: 0000000016cc0000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6de/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 53 4d 39 00 fb f4 e9 cf 12 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e1fe70 EFLAGS: 00000202 RAX: 0000000000816285 RBX: ffff888008da5040 RCX: ffffffff8449250e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81284df0 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f83 R10: ffffed100d9e69f0 R11: 0000000000000001 R12: ffffed10011b4a08 R13: ffffffff85d29690 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x300/0x3d0 cpu_startup_entry+0x18/0x20 start_secondary+0x1ca/0x220 secondary_startup_64_no_verify+0xe0/0xeb hpet: Lost 6 RTC interrupts hpet: Lost 2 RTC interrupts ---------------- Code disassembly (best guess): 0: f8 clc 1: 65 8b 05 e8 23 b8 7e mov %gs:0x7eb823e8(%rip),%eax # 0x7eb823f0 8: 89 c6 mov %eax,%esi a: 81 e6 00 01 00 00 and $0x100,%esi 10: 65 48 8b 14 25 80 8a mov %gs:0x38a80,%rdx 17: 03 00 19: a9 00 01 ff 00 test $0xff0100,%eax 1e: 74 0e je 0x2e 20: 85 f6 test %esi,%esi 22: 74 59 je 0x7d 24: 8b 82 0c 14 00 00 mov 0x140c(%rdx),%eax * 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 74 4f je 0x7d 2e: 8b 82 e8 13 00 00 mov 0x13e8(%rdx),%eax 34: 83 f8 03 cmp $0x3,%eax 37: 75 44 jne 0x7d 39: 48 8b 82 f0 13 00 00 mov 0x13f0(%rdx),%rax