------------[ cut here ]------------
WARNING: lib/iov_iter.c:356 at page_copy_sane+0x18f/0x270, CPU#1: syz.1.8558/4431
Modules linked in:
CPU: 1 UID: 0 PID: 4431 Comm: syz.1.8558 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:page_copy_sane+0x18f/0x270
Code: e8 16 d3 2b fd b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 ff d2 2b fd 49 ff cc e9 1a ff ff ff e8 f2 d2 2b fd 90 <0f> 0b 90 31 c0 eb d6 e8 e5 d2 2b fd be 00 10 00 00 48 c7 c7 b0 d3
RSP: 0018:ffffc90008caf478 EFLAGS: 00010293
RAX: ffffffff84977a8e RBX: 00000000000001a2 RCX: ffff888112c057c0
RDX: 0000000000000000 RSI: 00000000000001a2 RDI: fffffffffffffff8
RBP: 00000000ffffff01 R08: ffffffff8fc24f77 R09: 1ffffffff1f849ee
R10: dffffc0000000000 R11: fffffbfff1f849ef R12: ffffea0004426940
R13: dffffc0000000000 R14: fffffffffffffff8 R15: 00000000000001a2
FS:  00007f62a324c6c0(0000) GS:ffff8882a9a22000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d8f6d0ff8 CR3: 00000001136b4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 copy_page_to_iter+0x31/0x1c0
 sk_msg_recvmsg+0x28e/0xc30
 udp_bpf_recvmsg+0x4bd/0xe00
 inet_recvmsg+0x260/0x270
 sock_recvmsg+0x1a8/0x270
 ____sys_recvmsg+0x1e6/0x4a0
 ___sys_recvmsg+0x215/0x590
 do_recvmmsg+0x334/0x800
 __x64_sys_recvmmsg+0x198/0x250
 do_syscall_64+0xf0/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f62a239acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f62a324c028 EFLAGS: 00000246
 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f62a2606090 RCX: 00007f62a239acb9
RDX: 0000000000000001 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f62a2408bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f62a2606128 R14: 00007f62a2606090 R15: 00007ffc18dd2a48
 </TASK>
