------------[ cut here ]------------
!folio_buffers(folio)
WARNING: fs/ext4/inode.c:3913 at ext4_dirty_folio+0x167/0x1b0 fs/ext4/inode.c:3913, CPU#0: syz.0.0/5331
Modules linked in:
CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ext4_dirty_folio+0x167/0x1b0 fs/ext4/inode.c:3913
Code: 3f a9 a7 ff 49 83 3f 00 74 1a e8 04 d9 3b ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 3f ad cd ff e8 ea d8 3b ff 90 <0f> 0b 90 eb e0 e8 df d8 3b ff 90 0f 0b 90 eb a7 e8 d4 d8 3b ff 48
RSP: 0018:ffffc9000ef97538 EFLAGS: 00010283
RAX: ffffffff8289d796 RBX: ffffea000142ff80 RCX: 0000000000100000
RDX: ffffc90020802000 RSI: 000000000005ca6c RDI: 000000000005ca6d
RBP: 1ffffd4000285ff0 R08: ffffea000142ff87 R09: 1ffffd4000285ff0
R10: dffffc0000000000 R11: fffff94000285ff1 R12: ffff888047d92180
R13: 1ffffd4000285ff1 R14: 0000000000000001 R15: ffffea000142ffa8
FS:  00007f07e73b06c0(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07e738dfe8 CR3: 0000000040e4a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 bio_set_pages_dirty+0xf3/0x170 block/bio.c:1652
 __blkdev_direct_IO+0x859/0xfa0 block/fops.c:248
 blkdev_direct_IO+0x121a/0x1790 block/fops.c:436
 blkdev_read_iter+0x23d/0x440 block/fops.c:839
 aio_read+0x33a/0x4d0 fs/aio.c:1602
 __io_submit_one fs/aio.c:-1 [inline]
 io_submit_one+0x79d/0x14c0 fs/aio.c:2052
 __do_sys_io_submit fs/aio.c:2111 [inline]
 __se_sys_io_submit+0x195/0x340 fs/aio.c:2081
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f07e659c799
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:00007f07e73affe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007f07e6816090 RCX: 00007f07e659c799
RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007f07e738f000
RBP: 00007f07e6632c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f07e6816128 R14: 00007f07e6816090 R15: 00007fff05a00f28
 </TASK>