------------[ cut here ]------------
WARNING: CPU: 0 PID: 6850 at net/kcm/kcmsock.c:533 unreserve_psock+0x2e1/0x6e0 net/kcm/kcmsock.c:533
Modules linked in:
CPU: 0 PID: 6850 Comm: syz-executor.1 Not tainted 6.4.0-rc6-next-20230616-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:unreserve_psock+0x2e1/0x6e0 net/kcm/kcmsock.c:533
Code: 32 f8 48 89 ef e8 df b1 ff ff 4c 89 f7 e8 47 02 ce 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f e9 54 e9 32 f8 e8 4f e9 32 f8 <0f> 0b 4c 89 f7 e8 25 02 ce 00 eb dc e8 3e e9 32 f8 0f 0b e9 f0 fe
RSP: 0018:ffffc90006ae77c0 EFLAGS: 00010216
RAX: 00000000000017a4 RBX: ffff888079620000 RCX: ffffc900055f9000
RDX: 0000000000040000 RSI: ffffffff895178d1 RDI: ffffc90006ae7750
RBP: 0000000000000000 R08: 0000000000000001 R09: fffff52000d5ceea
R10: 0000000000000003 R11: 1ffffffff21f5b28 R12: ffff888015f5c000
R13: ffff888079620000 R14: ffff888015f5c1c0 R15: ffff888079620598
FS:  00007f385cc1e700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1d0cea2360 CR3: 000000005e857000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kcm_write_msgs+0x572/0x14a0 net/kcm/kcmsock.c:699
 kcm_sendmsg+0x203a/0x27d0 net/kcm/kcmsock.c:903
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xde/0x190 net/socket.c:748
 ____sys_sendmsg+0x739/0x920 net/socket.c:2494
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2548
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2577
 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: 0033:0x7f385be8c389
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:00007f385cc1e168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f385bfabf80 RCX: 00007f385be8c389
RDX: 00000000200000c0 RSI: 00000000200017c0 RDI: 0000000000000003
RBP: 00007f385bed7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffa618749f R14: 00007f385cc1e300 R15: 0000000000022000
 </TASK>