------------[ cut here ]------------
WARNING: CPU: 1 PID: 5425 at include/net/scm.h:138 scm_recv.constprop.0+0x632/0x730 include/net/scm.h:169
Modules linked in:
CPU: 1 PID: 5425 Comm: syz-executor.0 Not tainted 6.4.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:scm_pidfd_recv include/net/scm.h:138 [inline]
RIP: 0010:scm_recv.constprop.0+0x632/0x730 include/net/scm.h:177
Code: ff ff e8 71 bd b1 f9 e9 c1 fd ff ff e8 67 bd b1 f9 e9 eb fd ff ff e8 5d bd b1 f9 e9 f7 fb ff ff e8 53 bd b1 f9 e9 6e fd ff ff <0f> 0b e9 92 fc ff ff e8 62 bd b1 f9 e9 49 fa ff ff e8 58 bd b1 f9
RSP: 0018:ffffc9000407f670 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 1ffff9200080fece RCX: ffffffff880d591d
RDX: 1ffff9200080ff05 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffffc9000407f828 R08: 0000000000000000 R09: ffff888073f2000f
R10: ffffed100e7e4001 R11: 0000000000000001 R12: ffffc9000407fdb8
R13: ffff888073f20000 R14: ffff888073f20008 R15: 0000000000000000
FS:  00007f89a6077700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005b80 CR3: 000000001428e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unix_stream_read_generic+0x525/0x1b30 net/unix/af_unix.c:2814
 unix_stream_recvmsg+0x154/0x1d0 net/unix/af_unix.c:2864
 sock_recvmsg_nosec net/socket.c:1019 [inline]
 sock_recvmsg+0xcd/0x160 net/socket.c:1040
 ____sys_recvmsg+0x1b2/0x560 net/socket.c:2712
 ___sys_recvmsg+0xc3/0x130 net/socket.c:2754
 do_recvmmsg+0x1d9/0x570 net/socket.c:2848
 __sys_recvmmsg net/socket.c:2927 [inline]
 __do_sys_recvmmsg net/socket.c:2950 [inline]
 __se_sys_recvmmsg net/socket.c:2943 [inline]
 __x64_sys_recvmmsg+0x19e/0x200 net/socket.c:2943
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f89a528c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f89a6077168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f89a53abf80 RCX: 00007f89a528c389
RDX: 0000000000000001 RSI: 0000000020005b80 RDI: 0000000000000004
RBP: 00007f89a52d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000140 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff61511cdf R14: 00007f89a6077300 R15: 0000000000022000
 </TASK>