------------[ cut here ]------------ WARNING: CPU: 0 PID: 5086 at lib/iov_iter.c:629 _copy_from_iter+0x2ed/0xf70 lib/iov_iter.c:629 Modules linked in: CPU: 0 PID: 5086 Comm: syz-executor371 Not tainted 6.1.0-rc8-next-20221207-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:_copy_from_iter+0x2ed/0xf70 lib/iov_iter.c:629 Code: 77 fd 44 89 fb e9 33 ff ff ff e8 be 34 77 fd be 79 02 00 00 48 c7 c7 e0 59 a6 8a e8 fd 6f b0 fd e9 17 fe ff ff e8 a3 34 77 fd <0f> 0b 45 31 ff e9 7b ff ff ff e8 94 34 77 fd 31 ff 89 ee e8 fb 30 RSP: 0018:ffffc90003e1f828 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888026548000 RSI: ffffffff840a6e5d RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003e1fd00 R13: ffff888079c498f8 R14: ffffc90003e1fd00 R15: 0000000000000000 FS: 0000555557073300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045b630 CR3: 000000007d92a000 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/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: 0033:0x7fac68eeeb19 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:00007ffe4214d778 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fac68eeeb19 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007fac68eb2cc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac68eb2d50 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000