------------[ cut here ]------------
WARNING: CPU: 0 PID: 5093 at net/kcm/kcmsock.c:634 kcm_write_msgs+0x10ba/0x1990 net/kcm/kcmsock.c:634
Modules linked in:
CPU: 0 PID: 5093 Comm: syz-executor103 Not tainted 6.1.0-syzkaller-11831-gd75858ef108c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:kcm_write_msgs+0x10ba/0x1990 net/kcm/kcmsock.c:634
Code: 07 00 00 48 8b 44 24 68 45 31 e4 48 8b 74 24 08 48 89 70 10 e9 d5 f3 ff ff e8 62 72 82 f8 0f 0b e9 09 f5 ff ff e8 56 72 82 f8 <0f> 0b 41 bc ea ff ff ff e9 b7 f3 ff ff e8 44 72 82 f8 48 8b 7c 24
RSP: 0018:ffffc90003d0f9d8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000000000c0 RCX: 0000000000000000
RDX: ffff88801c259d40 RSI: ffffffff88fedfba RDI: 0000000000000001
RBP: ffff88807d735cc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000008000
R13: ffff88807d7202c0 R14: ffff88807d735c00 R15: 0000000000000000
FS:  00007f4ae0356700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ae03f3870 CR3: 00000000252c9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kcm_sendmsg+0x1dab/0x2360 net/kcm/kcmsock.c:1040
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 sock_write_iter+0x295/0x3d0 net/socket.c:1108
 call_write_iter include/linux/fs.h:2186 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xdd0 fs/read_write.c:584
 ksys_write+0x1ec/0x250 fs/read_write.c:637
 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: 0033:0x7f4ae03b1bb9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 18 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:00007f4ae0356208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4ae04344c8 RCX: 00007f4ae03b1bb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f4ae04344c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4ae04344cc
R13: 00007ffdd3cfe05f R14: 00007f4ae0356300 R15: 0000000000022000
 </TASK>