watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.7:12928] Modules linked in: irq event stamp: 2508913 hardirqs last enabled at (2508912): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2508913): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2466670): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2466673): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 12928 Comm: syz-executor.7 Not tainted 6.12.0-next-20241118 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 b6 7d a9 fc 48 89 ef e8 be f0 a9 fc 80 e7 02 74 06 e8 04 4a d3 fc fb 65 ff 0d 54 ec 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88806ce09e20 EFLAGS: 00000202 RAX: 000000000026482e RBX: 0000000000000282 RCX: 1ffffffff0fde85a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ba6c RBP: ffff88806ce2ce40 R08: 0000000000000001 R09: fffffbfff0fdd9ee R10: ffffffff87eecf77 R11: 00000000000c3926 R12: 000000001ae77001 R13: ffff888015d3f028 R14: ffff88806ce2d0c0 R15: dffffc0000000000 FS: 00007f588b5e2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555836ecc58 CR3: 000000000b488000 CR4: 0000000000350ef0 Call Trace: __hrtimer_run_queues+0x4c4/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:insert_header+0xbe0/0x15f0 Code: 2b 47 40 48 c1 f8 05 48 8d 14 c5 00 00 00 00 48 29 c2 4c 8d 3c d1 4c 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 50 05 00 00 4d 8b 3f <4c> 89 ff e8 18 71 cc 02 4c 89 fa 44 89 ee 4c 89 f7 48 89 c1 e8 87 RSP: 0018:ffff88803f2d7648 EFLAGS: 00000246 RAX: 1ffff11007c6a0e7 RBX: ffff88800f9ba060 RCX: ffff88803e350000 RDX: 00000000000000e7 RSI: ffffffff81b46a9e RDI: ffff88800f9ba040 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed1007e5aed0 R10: 0000000000000001 R11: 00000000000c3926 R12: ffff88800f9ba478 R13: 0000000000000013 R14: ffffffff8521b040 R15: ffffffff8521a400 __register_sysctl_table+0x724/0x16d0 ipv4_sysctl_init_net+0x105/0x400 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f588e06cb19 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:00007f588b5e2188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f588e17ff60 RCX: 00007f588e06cb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f588e0c6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff710f067f R14: 00007f588b5e2300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 12903 Comm: syz-executor.4 Not tainted 6.12.0-next-20241118 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_is_watching+0x30/0x70 Code: ff 05 cc 57 ca 7e 65 48 8b 1d 14 cb c8 7e 48 8d bb d0 65 03 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 26 8b 83 d0 65 03 RSP: 0018:ffff88806cf097f0 EFLAGS: 00000012 RAX: dffffc0000000000 RBX: ffff88806cf00000 RCX: ffffffff812f2976 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88806cf365d0 RBP: ffff88806cf2ce58 R08: 0000000000000000 R09: fffffbfff0c7f382 R10: ffffffff863f9c17 R11: 00000000fa83b2da R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 000000000003a6cc FS: 00007eff6e634700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f20d10718 CR3: 000000003e9b0000 CR4: 0000000000350ef0 Call Trace: trace_lock_acquire+0x137/0x1b0 lock_acquire+0x32/0xc0 _raw_spin_lock_irq+0x33/0x50 __hrtimer_run_queues+0x23d/0xa70 hrtimer_interrupt+0x369/0x830 __sysvec_apic_timer_interrupt+0xc2/0x330 sysvec_apic_timer_interrupt+0x34/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x8c8/0x1320 Code: 07 00 00 48 8d bb 18 3f 00 00 4d 8b bc 24 18 3f 00 00 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 9b 07 00 00 4c 23 bb 18 3f 00 00 <31> ff 4c 89 fe e8 6e 8c 16 fe 4d 85 ff 0f 84 7f fe ff ff e8 00 89 RSP: 0018:ffff88806cf09b38 EFLAGS: 00000202 RAX: 1ffff11007706df3 RBX: ffff88803b833080 RCX: ffffffff833b780a RDX: ffff88803c550000 RSI: ffffffff833b7823 RDI: ffff88803b836f98 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e1359 R10: 0000000000000000 R11: 5050505001000011 R12: ffff88803e7cb080 R13: ffff88803b58c780 R14: ffff88803e7cb318 R15: 0000000000000001 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:queued_spin_lock_slowpath+0x242/0xb60 Code: 02 48 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 85 08 00 00 b8 01 00 00 00 66 89 45 00 e9 bf fe ff ff 89 44 24 38 f3 90 5b fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 RSP: 0018:ffff88803fdd74a8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8486c2bf RDX: fffffbfff0ba7da1 RSI: 0000000000000004 RDI: ffffffff85d3ed00 RBP: ffffffff85d3ed00 R08: 0000000000000000 R09: fffffbfff0ba7da0 R10: ffffffff85d3ed03 R11: 00000000000c3926 R12: 1ffff11007fbae96 R13: 0000000000000003 R14: fffffbfff0ba7da0 R15: ffff88803fdd74e0 do_raw_spin_lock+0x1de/0x270 __register_sysctl_table+0x642/0x16d0 __addrconf_sysctl_register+0x17f/0x340 addrconf_init_net+0x527/0x8d0 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7eff710beb19 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:00007eff6e634188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007eff711d1f60 RCX: 00007eff710beb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007eff71118f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf22fdadf R14: 00007eff6e634300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 18 53 48 sbb %dl,0x48(%rbx) 3: 89 f3 mov %esi,%ebx 5: 48 8b 74 24 10 mov 0x10(%rsp),%rsi a: e8 b6 7d a9 fc callq 0xfca97dc5 f: 48 89 ef mov %rbp,%rdi 12: e8 be f0 a9 fc callq 0xfca9f0d5 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 04 4a d3 fc callq 0xfcd34a25 21: fb sti 22: 65 ff 0d 54 ec 7c 7b decl %gs:0x7b7cec54(%rip) # 0x7b7cec7d * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 a3 1e 00 00 jmpq 0x1ed5 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 97 1e 00 00 jmpq 0x1ed5 3e: 0f .byte 0xf