list_add corruption. prev->next should be next (ffffffff8c07dcc0), but was 0000000000000000. (prev=ffff888016f765c8).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:30!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15703 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-05118-g833477fce7a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:__list_add_valid.cold+0x56/0x58 lib/list_debug.c:30
Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 41 49 8a e8 e8 db f0 ff 0f 0b 48 89 f1 48 c7 c7 e0 40 49 8a 4c 89 e6 e8 d4 db f0 ff <0f> 0b 4c 89 e1 48 89 ee 48 c7 c7 40 43 49 8a e8 c0 db f0 ff 0f 0b
RSP: 0018:ffffc9000500f770 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff88807dc2e5a8 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff81601eb8 RDI: fffff52000a01ee0
RBP: ffff88807dc2e5c8 R08: 0000000000000075 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8c07dcc0
R13: ffff8880772ca000 R14: ffff888016f765c8 R15: ffff88807dc2e5c8
FS:  00007fd62252a700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff0d451c48 CR3: 000000004c0ef000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_add include/linux/list.h:69 [inline]
 list_add_tail include/linux/list.h:102 [inline]
 register_shrinker_prepared mm/vmscan.c:684 [inline]
 __register_shrinker mm/vmscan.c:696 [inline]
 register_shrinker+0x6f/0x160 mm/vmscan.c:722
 nfsd4_init_leases_net+0x390/0x490 fs/nfsd/nfs4state.c:4393
 nfsd_init_net+0x1b5/0x430 fs/nfsd/nfsctl.c:1456
 ops_init+0xaf/0x470 net/core/net_namespace.c:134
 setup_net+0x5d1/0xc50 net/core/net_namespace.c:325
 copy_net_ns+0x318/0x760 net/core/net_namespace.c:471
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178
 copy_process+0x304d/0x7090 kernel/fork.c:2257
 kernel_clone+0xe7/0xab0 kernel/fork.c:2671
 __do_sys_clone3+0x1cd/0x2e0 kernel/fork.c:2963
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd62148a5a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd62252a038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fd6215ac120 RCX: 00007fd62148a5a9
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00007fd62252a050
RBP: 00007fd6214e5580 R08: 0000000000000000 R09: 0000000000000058
R10: 00007fd62252a050 R11: 0000000000000246 R12: 0000000000000058
R13: 00007ffc2387510f R14: 00007fd62252a300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid.cold+0x56/0x58 lib/list_debug.c:30
Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 41 49 8a e8 e8 db f0 ff 0f 0b 48 89 f1 48 c7 c7 e0 40 49 8a 4c 89 e6 e8 d4 db f0 ff <0f> 0b 4c 89 e1 48 89 ee 48 c7 c7 40 43 49 8a e8 c0 db f0 ff 0f 0b
RSP: 0018:ffffc9000500f770 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff88807dc2e5a8 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff81601eb8 RDI: fffff52000a01ee0
RBP: ffff88807dc2e5c8 R08: 0000000000000075 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8c07dcc0
R13: ffff8880772ca000 R14: ffff888016f765c8 R15: ffff88807dc2e5c8
FS:  00007fd62252a700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020126000 CR3: 000000004c0ef000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400