------------[ cut here ]------------
WARNING: CPU: 0 PID: 7021 at net/ipv6/ip6mr.c:419 ip6mr_free_table+0xd8/0x100 net/ipv6/ip6mr.c:419
Modules linked in:
CPU: 0 UID: 0 PID: 7021 Comm: syz.1.310 Not tainted 6.13.0-rc1-syzkaller-00036-gd6212d82bf26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ip6mr_free_table+0xd8/0x100 net/ipv6/ip6mr.c:419
Code: e8 9d 2f ff ff 49 8d be 98 0e 00 00 31 f6 31 d2 e8 bd e0 45 fa 4c 89 f7 5b 41 5c 41 5e 41 5f e9 de c3 79 f7 e8 69 15 1b f7 90 <0f> 0b 90 eb c0 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 72 ff ff ff 48
RSP: 0018:ffffc9001a25f778 EFLAGS: 00010293
RAX: ffffffff8a845cb7 RBX: 0000000000000001 RCX: ffff88802a21bc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8a845c4a R09: 1ffff1100fcfd7b8
R10: dffffc0000000000 R11: ffffed100fcfd7b9 R12: dffffc0000000000
R13: dead000000000122 R14: ffff888028d20000 R15: ffff88807e7ecb40
FS:  00007f6246dae6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcd486f9fb8 CR3: 0000000027700000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 ip6mr_rules_exit+0x18f/0x220 net/ipv6/ip6mr.c:283
 ip6mr_net_exit_batch+0x4a/0x90 net/ipv6/ip6mr.c:1388
 ops_exit_list net/core/net_namespace.c:177 [inline]
 setup_net+0x829/0x9e0 net/core/net_namespace.c:394
 copy_net_ns+0x33f/0x570 net/core/net_namespace.c:500
 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
 copy_namespaces+0x41a/0x490 kernel/nsproxy.c:179
 copy_process+0x1929/0x3d50 kernel/fork.c:2398
 kernel_clone+0x226/0x8e0 kernel/fork.c:2807
 __do_sys_clone kernel/fork.c:2950 [inline]
 __se_sys_clone kernel/fork.c:2934 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2934
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6245f7fed9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6246dae008 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f6246145fa0 RCX: 00007f6245f7fed9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000c2002000
RBP: 00007f6245ff3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6246145fa0 R15: 00007ffc0683c158
 </TASK>