watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.5:13349] Modules linked in: irq event stamp: 2595097 hardirqs last enabled at (2595096): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2595097): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2590040): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2590043): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 13349 Comm: syz-executor.5 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_is_watching+0x4d/0x70 Code: 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 00 c1 e8 02 83 e0 01 <65> ff 0d 44 86 ca 7e 74 06 5b e9 54 b8 4c 03 0f 1f 44 00 00 5b e9 RSP: 0018:ffff88806ce09030 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88806ce00000 RCX: ffffffff8152582f RDX: 0000000000000000 RSI: ffffffff81525935 RDI: ffff88806ce365d0 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff0fdc5e4 R10: 0000000000000001 R11: 00000000000c33ea R12: 00007f1d66980b19 R13: 0000000000000000 R14: ffff888016519b80 R15: ffff88806ce096b0 FS: 00007f1d63ef6700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f36a42fb718 CR3: 000000003179e000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x15a/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+0x8c/0xa0 kvfree_call_rcu+0x29/0x980 cfg80211_update_known_bss+0x3c9/0x11e0 __cfg80211_bss_update+0xe0/0x1fe0 cfg80211_inform_single_bss_data+0x6e2/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x96/0x160 Code: 0f 82 e0 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 28 bf f1 03 48 01 ca 48 c1 ea 0c 48 c1 e2 06 48 03 15 06 bf f1 03 48 8b 72 08 <48> 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 ba 00 00 RSP: 0018:ffff88803caff5d0 EFLAGS: 00000286 RAX: ffff88803ee57cb8 RBX: ffff88803ee57cb8 RCX: ffff8880bee57cb8 RDX: ffffea0000fb95c0 RSI: ffff888008c4f780 RDI: 0000000000080000 RBP: 0000000000000000 R08: ffff88804058d128 R09: 00000000000d000b R10: ffffea0001016300 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803caff608 R14: ffff88804058d128 R15: ffff88804058d128 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 __kmalloc_node_noprof+0x191/0x4a0 __kvmalloc_node_noprof+0x178/0x200 bucket_table_alloc.isra.0+0x89/0x470 rhashtable_init_noprof+0x348/0x770 rhltable_init_noprof+0x20/0x60 mr_table_alloc+0x116/0x2e0 ipmr_net_init+0x2b1/0x370 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e60 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1d66980b19 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:00007f1d63ef6188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f1d66a93f60 RCX: 00007f1d66980b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f1d669daf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc17528a7f R14: 00007f1d63ef6300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 66 0f 1f 44 00 00 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 f2 ec 73 03 48 89 c6 31 d2 bf e0 06 00 00 e8 43 01 RSP: 0018:ffff88806cf09ed0 EFLAGS: 00000012 RAX: 0000014c4688a3a8 RBX: 0000000000000000 RCX: 00000000000006e0 RDX: 000000000000014c RSI: ffff88806cf28300 RDI: 000000000004f9f7 RBP: ffff88806cf28300 R08: 0000000000000001 R09: ffff88800961dcb8 R10: 00000000000e3ed3 R11: 00000000000844d1 R12: 000000000004f9f7 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806cf2ce40 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ad7cb1b618 CR3: 000000000eb90000 CR4: 0000000000350ef0 Call Trace: clockevents_program_event+0x248/0x360 tick_program_event+0xa4/0x140 hrtimer_interrupt+0x343/0x750 __sysvec_apic_timer_interrupt+0xc2/0x330 sysvec_apic_timer_interrupt+0x6b/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d a9 df 3e 00 0f 1f 44 00 00 fb f4 e9 1c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096c7e68 EFLAGS: 00000206 RAX: 000000000015b80f RBX: 0000000000000001 RCX: ffffffff84839b17 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812ae2ca RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863f7790 R13: 1ffff110012d8fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: df 48 89 fisttps -0x77(%rax) 3: fa cli 4: 48 c1 ea 03 shr $0x3,%rdx 8: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx c: 48 89 f8 mov %rdi,%rax f: 83 e0 07 and $0x7,%eax 12: 83 c0 03 add $0x3,%eax 15: 38 d0 cmp %dl,%al 17: 7c 04 jl 0x1d 19: 84 d2 test %dl,%dl 1b: 75 26 jne 0x43 1d: 8b 83 d0 65 03 00 mov 0x365d0(%rbx),%eax 23: c1 e8 02 shr $0x2,%eax 26: 83 e0 01 and $0x1,%eax * 29: 65 ff 0d 44 86 ca 7e decl %gs:0x7eca8644(%rip) # 0x7eca8674 <-- trapping instruction 30: 74 06 je 0x38 32: 5b pop %rbx 33: e9 54 b8 4c 03 jmpq 0x34cb88c 38: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3d: 5b pop %rbx 3e: e9 .byte 0xe9