------------[ cut here ]------------
WARNING: CPU: 0 PID: 6359 at net/ipv6/ip6mr.c:419 ip6mr_free_table+0xd8/0x100 net/ipv6/ip6mr.c:419
Modules linked in:
CPU: 0 UID: 0 PID: 6359 Comm: syz-executor336 Not tainted 6.12.0-syzkaller-11677-g2ba9f676d0a2 #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 8d f8 45 fa 4c 89 f7 5b 41 5c 41 5e 41 5f e9 2e fb 79 f7 e8 09 5b 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:ffffc90004fdfaf8 EFLAGS: 00010293
RAX: ffffffff8a7a8687 RBX: 0000000000000001 RCX: ffff88807babbc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8a7a861a R09: 1ffff1100e8bd028
R10: dffffc0000000000 R11: ffffed100e8bd029 R12: dffffc0000000000
R13: dead000000000122 R14: ffff88807c1d8000 R15: ffff8880745e8ec0
FS:  00007ffbc35ed6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555826fb788 CR3: 0000000030eee000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x57d/0xa70 kernel/fork.c:3334
 __do_sys_unshare kernel/fork.c:3405 [inline]
 __se_sys_unshare kernel/fork.c:3403 [inline]
 __x64_sys_unshare+0x38/0x40 kernel/fork.c:3403
 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: 0033:0x7ffbc3e42bf9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 1f 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffbc35ed178 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffbc3ecd1a8 RCX: 00007ffbc3e42bf9
RDX: 00007ffbc3e1b446 RSI: 0000000000000000 RDI: 0000000068040200
RBP: 00007ffbc3ecd1a0 R08: 00007fffc3904927 R09: 00007ffbc35ed6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffbc3ecd1ac
R13: 0000000000000016 R14: 00007fffc3904840 R15: 00007fffc3904928
 </TASK>