------------[ cut here ]------------
WARNING: CPU: 1 PID: 4778 at mm/gup.c:2121 is_valid_gup_args+0x1dc/0x230
Modules linked in:
CPU: 1 PID: 4778 Comm: syz-executor.6 Not tainted 6.2.0-rc7-next-20230207 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:is_valid_gup_args+0x1dc/0x230
Code: dd ff 48 83 3c 24 00 0f 85 76 ff ff ff e8 5c 50 dd ff 0f 0b 45 31 e4 eb c9 e8 50 50 dd ff 0f 0b 45 31 e4 eb bd e8 44 50 dd ff <0f> 0b 45 31 e4 eb b1 e8 38 50 dd ff 0f 0b 45 31 e4 eb a5 e8 2c 50
RSP: 0018:ffff8880447ff508 EFLAGS: 00010216
RAX: 000000000000e05b RBX: 0000000000040000 RCX: ffffc9000822c000
RDX: 0000000000040000 RSI: ffffffff816e127c RDI: 0000000000000005
RBP: ffff8880447ff568 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000040000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000040000 R15: 0000000000040000
FS:  00007fd1525c2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffce848ac98 CR3: 000000001ee80000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 pin_user_pages_fast+0x83/0x100
 iov_iter_extract_pages+0x2b9/0x1e90
 bio_iov_iter_get_pages+0x341/0x13c0
 iomap_dio_bio_iter+0x78e/0x1350
 __iomap_dio_rw+0xe22/0x1ce0
blktrace: Concurrent blktraces are not allowed on sg0
 iomap_dio_rw+0x40/0xa0
 ext4_file_write_iter+0xb5d/0x1930
 vfs_write+0x9b4/0xdc0
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fd15504cb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd1525c2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd15515ff60 RCX: 00007fd15504cb19
RDX: 0000000000140000 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00007fd1550a6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc0d6c419f R14: 00007fd1525c2300 R15: 0000000000022000
 </TASK>
irq event stamp: 17177
hardirqs last  enabled at (17291): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (17414): [<ffffffff8446523f>] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last  enabled at (12954): [<ffffffff8118cdec>] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (12717): [<ffffffff8118cdec>] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
loop7: detected capacity change from 0 to 40
audit: type=1400 audit(1675813490.395:14): avc:  denied  { watch_reads } for  pid=4771 comm="syz-executor.0" path="/syzkaller-testdir745104963/syzkaller.hxRtEN/24/file0" dev="sda" ino=15985 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=1
kworker/u4:3: attempt to access beyond end of device
loop7: rw=1, sector=124, nr_sectors = 4 limit=40
buffer_io_error: 6 callbacks suppressed
Buffer I/O error on dev loop7, logical block 31, lost async page write
loop1: detected capacity change from 0 to 40
loop7: detected capacity change from 0 to 40
syz-executor.7: attempt to access beyond end of device
loop7: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop7, logical block 10, lost async page write
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write