------------[ cut here ]------------ WARNING: CPU: 0 PID: 21792 at lib/iov_iter.c:629 _copy_from_iter+0x2ae/0xf40 lib/iov_iter.c:629 Modules linked in: CPU: 0 PID: 21792 Comm: syz-executor.3 Not tainted 6.2.0-rc7-syzkaller-01963-g84cb1b53cdba #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:_copy_from_iter+0x2ae/0xf40 lib/iov_iter.c:629 Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 ed 33 75 fd be 79 02 00 00 48 c7 c7 a0 7a a6 8a e8 8c 81 b0 fd e9 55 fe ff ff e8 d2 33 75 fd <0f> 0b 45 31 ff eb 8b e8 c6 33 75 fd 31 ff 89 ee e8 2d 30 75 fd 40 RSP: 0018:ffffc9000315f830 EFLAGS: 00010212 RAX: 0000000000000cd4 RBX: 0000000000000000 RCX: ffffc900065e2000 RDX: 0000000000040000 RSI: ffffffff840bcdbe RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000315fd00 R13: ffffc9000315fd00 R14: ffff88807d8a6f00 R15: 0000000000000000 FS: 00007f7f807bc700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74faa18718 CR3: 000000002253f000 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:1506 tipc_connect+0x57b/0x6b0 net/tipc/socket.c:2627 __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: 0033:0x7f7f7fa8c0f9 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:00007f7f807bc168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f7f7fbabf80 RCX: 00007f7f7fa8c0f9 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f7f7fae7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffee66a0a0f R14: 00007f7f807bc300 R15: 0000000000022000