watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.7:17786] Modules linked in: irq event stamp: 3843251 hardirqs last enabled at (3843250): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3843251): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3832368): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3832375): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 17786 Comm: syz-executor.7 Not tainted 6.13.0-rc1-next-20241205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:trace_lock_acquire+0x13d/0x1b0 Code: 89 e9 48 89 ee e8 03 3e ff ff 58 5a 65 ff 0d 12 61 d4 7e 0f 85 eb fe ff ff 0f 1f 44 00 00 e9 e1 fe ff ff e8 b5 f1 09 00 84 c0 <0f> 85 01 ff ff ff 80 3d 31 a8 0d 05 00 0f 85 f4 fe ff ff c6 05 24 RSP: 0018:ffff88806cf08fa8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff812f4506 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88806cf365d0 RBP: ffffffff85c16340 R08: 0000000000000000 R09: fffffbfff0c7f5d2 R10: ffffffff863fae97 R11: 00000000000c3afd R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 000000000003a70c FS: 00007f9b4f4da700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc3e02cccf8 CR3: 000000003f910000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x32/0xc0 __is_insn_slot_addr+0x3f/0x290 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_record_aux_stack+0x89/0xa0 kvfree_call_rcu+0x29/0x980 cfg80211_update_known_bss+0x3c9/0x11e0 __cfg80211_bss_update+0xe0/0x1fe0 cfg80211_inform_single_bss_data+0x6e2/0x1c70 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x6a0 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x1e38/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 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:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 f4 ac ab ff 4d 85 ed 74 06 e8 1a 75 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff888041da7740 EFLAGS: 00000246 RAX: 00000000003a7a35 RBX: ffffea00004c55c0 RCX: 1ffffffff0fe04ae RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff818477d6 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fde3e9 R10: ffffffff87ef1f4f R11: 0000000000000000 R12: ffff88806cf40390 R13: 0000000000000200 R14: 0000000000000000 R15: ffff888013157940 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_node_track_caller_noprof+0x1ef/0x490 kmemdup_noprof+0x2c/0x60 fib_notifier_ops_register+0x32/0x220 ipmr_net_init+0x51/0x370 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x26c0/0x70e0 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9b51f64b19 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:00007f9b4f4da188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f9b52077f60 RCX: 00007f9b51f64b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f9b51fbef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff288bd63f R14: 00007f9b4f4da300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 89 e9 mov %ebp,%ecx 2: 48 89 ee mov %rbp,%rsi 5: e8 03 3e ff ff callq 0xffff3e0d a: 58 pop %rax b: 5a pop %rdx c: 65 ff 0d 12 61 d4 7e decl %gs:0x7ed46112(%rip) # 0x7ed46125 13: 0f 85 eb fe ff ff jne 0xffffff04 19: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1e: e9 e1 fe ff ff jmpq 0xffffff04 23: e8 b5 f1 09 00 callq 0x9f1dd 28: 84 c0 test %al,%al * 2a: 0f 85 01 ff ff ff jne 0xffffff31 <-- trapping instruction 30: 80 3d 31 a8 0d 05 00 cmpb $0x0,0x50da831(%rip) # 0x50da868 37: 0f 85 f4 fe ff ff jne 0xffffff31 3d: c6 .byte 0xc6 3e: 05 .byte 0x5 3f: 24 .byte 0x24