------------[ cut here ]------------ WARNING: CPU: 1 PID: 5077 at lib/iov_iter.c:629 _copy_from_iter+0x2ae/0x1060 lib/iov_iter.c:629 Modules linked in: CPU: 1 PID: 5077 Comm: syz-executor144 Not tainted 6.2.0-rc5-next-20230123-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:_copy_from_iter+0x2ae/0x1060 lib/iov_iter.c:629 Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 dd 20 7a fd be 79 02 00 00 48 c7 c7 20 7d a6 8a e8 ac 97 b3 fd e9 55 fe ff ff e8 c2 20 7a fd <0f> 0b 45 31 ff eb 8b e8 b6 20 7a fd 31 ff 89 ee e8 1d 1d 7a fd 40 RSP: 0018:ffffc90003b3f808 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801c038000 RSI: ffffffff8407cd6e RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003b3fd00 R13: ffffc90003b3fd00 R14: ffff88807e38cc80 R15: 0000000000000000 FS: 0000555557539300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000064392c CR3: 0000000027d60000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: copy_from_iter include/linux/uio.h:187 [inline] copy_from_iter_full include/linux/uio.h:194 [inline] tipc_msg_build+0x2d4/0x10a0 net/tipc/msg.c:404 __tipc_sendmsg+0xada/0x1890 net/tipc/socket.c:1505 tipc_connect+0x57b/0x6b0 net/tipc/socket.c:2624 __sys_connect_file+0x153/0x1a0 net/socket.c:2001 __sys_connect+0x165/0x1a0 net/socket.c:2018 __do_sys_connect net/socket.c:2028 [inline] __se_sys_connect net/socket.c:2025 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:2025 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: 0033:0x7fe9458f9b19 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcbe067028 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe9458f9b19 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007fe9458bdcc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe9458bdd50 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000