------------[ cut here ]------------
WARNING: CPU: 1 PID: 2 at net/ipv4/ipmr.c:2302 ip_mr_output+0xbb1/0xe70 net/ipv4/ipmr.c:2302
Modules linked in:
CPU: 1 UID: 0 PID: 2 Comm: kthreadd Not tainted 6.16.0-rc1-syzkaller-00482-gafc783fa0aab #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ip_mr_output+0xbb1/0xe70 net/ipv4/ipmr.c:2302
Code: df e9 63 f6 ff ff e8 fe 71 c6 f7 48 8b 74 24 18 45 31 f6 31 ff ba 02 00 00 00 e8 3a 11 4c ff e9 45 f6 ff ff e8 e0 71 c6 f7 90 <0f> 0b 90 e9 94 f5 ff ff e8 d2 71 c6 f7 90 0f 0b 90 42 80 3c 2b 00
RSP: 0018:ffffc90000a08900 EFLAGS: 00010246
RAX: ffffffff89f9ed10 RBX: ffff888027dde640 RCX: ffff8881404d9e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a08a10 R08: ffff8881404d9e00 R09: 0000000000000004
R10: 0000000000000003 R11: ffffffff89f9e160 R12: 0000000000000010
R13: dffffc0000000000 R14: ffff888078be9d00 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f26edfb4d58 CR3: 0000000075626000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 igmp_send_report+0x89e/0xdb0 net/ipv4/igmp.c:799
 igmp_timer_expire+0x204/0x510 net/ipv4/igmp.c:-1
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1798 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:118 [inline]
RIP: 0010:lock_acquire+0x94/0x360 kernel/locking/lockdep.c:5847
Code: 0f 84 d7 01 00 00 83 3d 49 0c 03 0e 00 0f 84 f0 00 00 00 48 8b b4 24 90 00 00 00 4c 89 ef e8 33 77 85 00 83 3d 2c 0c 03 0e 00 <0f> 84 fa 00 00 00 65 8b 05 2f eb fe 10 85 c0 0f 85 eb 00 00 00 65
RSP: 0018:ffffc90000076d98 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 4142d4f5c364fe00
RDX: 0000000000000000 RSI: ffffffff81729e02 RDI: 1ffffffff1c27db4
RBP: ffffffff81729de5 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000076f58 R11: ffffffff81acf990 R12: 0000000000000002
R13: ffffffff8e13eda0 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 save_stack+0xf5/0x1f0 mm/page_owner.c:156
 __set_page_owner+0x8d/0x4a0 mm/page_owner.c:329
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
 alloc_frozen_pages_noprof mm/mempolicy.c:2490 [inline]
 alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2510
 vm_area_alloc_pages mm/vmalloc.c:3634 [inline]
 __vmalloc_area_node mm/vmalloc.c:3712 [inline]
 __vmalloc_node_range_noprof+0x97d/0x12f0 mm/vmalloc.c:3885
 __vmalloc_node_noprof+0xc2/0x110 mm/vmalloc.c:3948
 alloc_thread_stack_node kernel/fork.c:317 [inline]
 dup_task_struct+0x3e7/0x860 kernel/fork.c:877
 copy_process+0x54b/0x3c00 kernel/fork.c:1999
 kernel_clone+0x21e/0x870 kernel/fork.c:2599
 kernel_thread+0x10c/0x160 kernel/fork.c:2661
 create_kthread kernel/kthread.c:487 [inline]
 kthreadd+0x575/0x770 kernel/kthread.c:847
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f 84 d7 01 00 00    	je     0x1dd
   6:	83 3d 49 0c 03 0e 00 	cmpl   $0x0,0xe030c49(%rip)        # 0xe030c56
   d:	0f 84 f0 00 00 00    	je     0x103
  13:	48 8b b4 24 90 00 00 	mov    0x90(%rsp),%rsi
  1a:	00
  1b:	4c 89 ef             	mov    %r13,%rdi
  1e:	e8 33 77 85 00       	call   0x857756
  23:	83 3d 2c 0c 03 0e 00 	cmpl   $0x0,0xe030c2c(%rip)        # 0xe030c56
* 2a:	0f 84 fa 00 00 00    	je     0x12a <-- trapping instruction
  30:	65 8b 05 2f eb fe 10 	mov    %gs:0x10feeb2f(%rip),%eax        # 0x10feeb66
  37:	85 c0                	test   %eax,%eax
  39:	0f 85 eb 00 00 00    	jne    0x12a
  3f:	65                   	gs