syzbot

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WARNING: CPU: 0 PID: 5879 at mm/gup.c:2121 is_valid_gup_args+0x1d8/0x230 mm/gup.c:2121
Modules linked in:
CPU: 0 PID: 5879 Comm: syz-executor.4 Not tainted 6.2.0-rc7-next-20230207-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:is_valid_gup_args+0x1d8/0x230 mm/gup.c:2121
Code: c7 ff 48 83 3c 24 00 0f 85 7a ff ff ff e8 10 3a c7 ff 0f 0b 45 31 e4 eb cd e8 04 3a c7 ff 0f 0b 45 31 e4 eb c1 e8 f8 39 c7 ff <0f> 0b 45 31 e4 eb b5 e8 ec 39 c7 ff 0f 0b 45 31 e4 eb a9 e8 e0 39
RSP: 0018:ffffc9000d0374e8 EFLAGS: 00010216
RAX: 0000000000015064 RBX: 0000000000040000 RCX: ffffc9000de19000
RDX: 0000000000040000 RSI: ffffffff81bd3248 RDI: 0000000000000005
RBP: ffffc9000d037548 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000040000 R11: 0000000000000046 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000040000 R15: 0000000000040000
FS:  00007f480b7fe700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fdf6041d0 CR3: 0000000021552000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pin_user_pages_fast+0x83/0x100 mm/gup.c:3089
 iov_iter_extract_user_pages lib/iov_iter.c:2160 [inline]
 iov_iter_extract_pages+0x2b9/0x1e20 lib/iov_iter.c:2229
 __bio_iov_iter_get_pages block/bio.c:1267 [inline]
 bio_iov_iter_get_pages block/bio.c:1340 [inline]
 bio_iov_iter_get_pages+0x354/0x1580 block/bio.c:1327
 iomap_dio_bio_iter+0x830/0x1440 fs/iomap/direct-io.c:323
 iomap_dio_iter fs/iomap/direct-io.c:436 [inline]
 __iomap_dio_rw+0xd81/0x1d80 fs/iomap/direct-io.c:594
 iomap_dio_rw+0x40/0xa0 fs/iomap/direct-io.c:682
 ext4_dio_write_iter fs/ext4/file.c:587 [inline]
 ext4_file_write_iter+0x1053/0x1710 fs/ext4/file.c:698
 call_write_iter include/linux/fs.h:1851 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xe10 fs/read_write.c:584
 ksys_write+0x12b/0x250 fs/read_write.c:637
 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: 0033:0x7f480cc8c0f9
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:00007f480b7fe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f480cdac120 RCX: 00007f480cc8c0f9
RDX: 0000000000000600 RSI: 0000000020001400 RDI: 0000000000000003
RBP: 00007f480cce7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4207fc5f R14: 00007f480b7fe300 R15: 0000000000022000
 </TASK>