------------[ cut here ]------------
WARNING: mm/page-writeback.c:2710 at __folio_mark_dirty+0x202/0xe10 mm/page-writeback.c:2710, CPU#0: syz.0.0/5335
Modules linked in:
CPU: 0 UID: 0 PID: 5335 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~bpo12+1 04/01/2014
RIP: 0010:__folio_mark_dirty+0x202/0xe10 mm/page-writeback.c:2710
Code: 3c 20 00 74 08 48 89 df e8 7b cf 2a 00 4c 8b 33 4c 89 f6 48 83 e6 08 31 ff e8 6a 29 c3 ff 49 83 e6 08 75 20 e8 7f 24 c3 ff 90 <0f> 0b 90 eb 1a e8 74 24 c3 ff 48 8b 2c 24 e9 5d 07 00 00 e8 66 24
RSP: 0018:ffffc9000d127810 EFLAGS: 00010093
RAX: ffffffff81fde0d1 RBX: ffffea000049c380 RCX: ffff88801c690000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880481164f8 R08: ffffea000049c387 R09: 1ffffd4000093870
R10: dffffc0000000000 R11: fffff94000093871 R12: dffffc0000000000
R13: ffff888048116500 R14: 0000000000000000 R15: 0000000000000001
FS:  000055555b5e0500(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000100 CR3: 000000001164b000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 block_dirty_folio+0x17a/0x1d0 fs/buffer.c:754
 ext4_block_page_mkwrite fs/ext4/inode.c:6634 [inline]
 ext4_page_mkwrite+0xf07/0x1190 fs/ext4/inode.c:6731
 do_page_mkwrite+0x14d/0x310 mm/memory.c:3528
 wp_page_shared mm/memory.c:3929 [inline]
 do_wp_page+0x2676/0x5810 mm/memory.c:4148
 handle_pte_fault mm/memory.c:6289 [inline]
 __handle_mm_fault mm/memory.c:6411 [inline]
 handle_mm_fault+0x14c5/0x32b0 mm/memory.c:6580
 do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x71/0xd0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f7809b58b88
Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f
RSP: 002b:00007ffdf838d7d8 EFLAGS: 00010202
RAX: 0000200000000100 RBX: 0000000000000004 RCX: 006d766b2f766564
RDX: 0000000000000009 RSI: 6d766b2f7665642f RDI: 0000200000000100
RBP: 00007f7809de7da0 R08: 00007f78099ff02c R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007f7809de5fac
R13: 00007ffdf838d8d0 R14: fffffffffffffffe R15: 00007ffdf838d8f0
 </TASK>