------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at __ns_ref_active_get include/linux/ns_common.h:288 [inline], CPU#0: syz.1.908/9148
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x8ab/0xcb0 fs/nsfs.c:690, CPU#0: syz.1.908/9148
Modules linked in:
CPU: 0 UID: 0 PID: 9148 Comm: syz.1.908 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__ns_ref_active_get include/linux/ns_common.h:288 [inline]
RIP: 0010:nsproxy_ns_active_get+0x8ab/0xcb0 fs/nsfs.c:690
Code: 5f 5d e9 c8 c8 1d 09 cc e8 d2 fa 76 ff 90 0f 0b 90 e9 ee f7 ff ff e8 c4 fa 76 ff 90 0f 0b 90 e9 12 f8 ff ff e8 b6 fa 76 ff 90 <0f> 0b 90 e9 dc f8 ff ff e8 a8 fa 76 ff 90 0f 0b 90 e9 03 f9 ff ff
RSP: 0018:ffffc9000b26f9e0 EFLAGS: 00010283
RAX: ffffffff824ad57a RBX: ffff88801d2d6d68 RCX: 0000000000080000
RDX: ffffc9000bcb9000 RSI: 00000000000431e9 RDI: 00000000000431ea
RBP: 00000000f0000701 R08: ffff88807a564803 R09: 1ffff1100f4ac900
R10: dffffc0000000000 R11: ffffed100f4ac901 R12: dffffc0000000000
R13: 1ffff1100b90b183 R14: ffff88807a564800 R15: ffff88807a5645b0
FS:  00007ffae1a3c6c0(0000) GS:ffff888125a79000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffae1a3c9c8 CR3: 00000000557cc000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 copy_namespaces+0x48c/0x4b0 kernel/nsproxy.c:183
 copy_process+0x168f/0x3930 kernel/fork.c:2183
 kernel_clone+0x21e/0x840 kernel/fork.c:2609
 __do_sys_clone kernel/fork.c:2750 [inline]
 __se_sys_clone kernel/fork.c:2734 [inline]
 __x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2734
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffae0b8f6c9
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:00007ffae1a3bfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffae0de5fa0 RCX: 00007ffae0b8f6c9
RDX: 0000000000000000 RSI: fffffffffffffc70 RDI: 0000000001022000
RBP: 00007ffae0c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffae0de6038 R14: 00007ffae0de5fa0 R15: 00007ffd82bf2dd8
 </TASK>