------------[ cut here ]------------
WARNING: CPU: 1 PID: 5191 at mm/gup.c:1173 __get_user_pages+0xd68/0x10c0
Modules linked in:
CPU: 1 PID: 5191 Comm: syz-executor.5 Not tainted 6.4.0-syzkaller-11478-gd528014517f2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__get_user_pages+0xd68/0x10c0
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 61 03 00 00 48 8b 04 24 48 8b 80 c0 00 00 00 4a 8d 2c f8 e9 38 f7 ff ff e8 d8 f7 c2 ff <0f> 0b e9 a7 f5 ff ff e8 cc f7 c2 ff 0f 0b e8 c5 f7 c2 ff 41 89 dc
RSP: 0018:ffffc900043d7540 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000210002 RCX: 0000000000000000
RDX: ffff8880793c3b80 RSI: ffffffff81c2bad8 RDI: 0000000000000007
RBP: 0000000000000100 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: 0000000020006000
R13: 0000000020009000 R14: 0000000000000001 R15: 1ffff9200087aeb0
FS:  00007fa5d37fe6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555d578f8 CR3: 000000007a912000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __gup_longterm_locked+0x755/0x24d0
 internal_get_user_pages_fast+0x1c37/0x3190
 get_user_pages_fast+0xa8/0xf0
 __iov_iter_get_pages_alloc+0x2b3/0x19c0
 iov_iter_get_pages2+0xa4/0xf0
 __do_sys_vmsplice+0x520/0xaf0
 do_syscall_64+0x38/0xb0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa5d447cbe9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa5d37fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000116
RAX: ffffffffffffffda RBX: 00007fa5d459bf80 RCX: 00007fa5d447cbe9
RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007fa5d44c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa5d459bf80 R15: 00007fff33cf89f8
 </TASK>
