------------[ cut here ]------------ WARNING: CPU: 0 PID: 5071 at lib/iov_iter.c:629 _copy_from_iter+0x2ae/0xf40 lib/iov_iter.c:629 Modules linked in: CPU: 1 PID: 5071 Comm: syz-executor247 Not tainted 6.1.0-syzkaller-04313-g40cab44b9089 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:_copy_from_iter+0x2ae/0xf40 lib/iov_iter.c:629 Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 9d ea 77 fd be 79 02 00 00 48 c7 c7 60 61 a6 8a e8 1c 10 b1 fd e9 55 fe ff ff e8 82 ea 77 fd <0f> 0b 45 31 ff eb 8b e8 76 ea 77 fd 31 ff 89 ee e8 dd e6 77 fd 40 RSP: 0018:ffffc90003c5f830 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888029f33a80 RSI: ffffffff8409675e RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003c5fd00 R13: ffffc90003c5fd00 R14: ffff888025bb5680 R15: 0000000000000000 FS: 0000555557342300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000061cca0 CR3: 000000007f6df000 CR4: 00000000003506e0 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/0x1870 net/tipc/socket.c:1505 tipc_connect+0x57b/0x6b0 net/tipc/socket.c:2624 __sys_connect_file+0x153/0x1a0 net/socket.c:1976 __sys_connect+0x165/0x1a0 net/socket.c:1993 __do_sys_connect net/socket.c:2003 [inline] __se_sys_connect net/socket.c:2000 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:2000 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: 0033:0x7f543de72b19 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:00007ffecb993b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f543de72b19 RDX: 0000000000000010 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00007f543de36cc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f543de36d50 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000