------------[ cut here ]------------
WARNING: mm/page-writeback.c:2710 at __folio_mark_dirty+0x202/0xe10 mm/page-writeback.c:2710, CPU#0: syz.0.0/5342
Modules linked in:
CPU: 0 UID: 0 PID: 5342 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 3b d2 2a 00 4c 8b 33 4c 89 f6 48 83 e6 08 31 ff e8 8a fa c2 ff 49 83 e6 08 75 20 e8 9f f5 c2 ff 90 <0f> 0b 90 eb 1a e8 94 f5 c2 ff 48 8b 2c 24 e9 5d 07 00 00 e8 86 f5
RSP: 0000:ffffc9000a357810 EFLAGS: 00010093
RAX: ffffffff81fecab1 RBX: ffffea00007f2ac0 RCX: ffff8880002a24c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880463617f8 R08: ffffea00007f2ac7 R09: 1ffffd40000fe558
R10: dffffc0000000000 R11: fffff940000fe559 R12: dffffc0000000000
R13: ffff888046361800 R14: 0000000000000000 R15: 0000000000000001
FS:  000055557fbb1500(0000) GS:ffff88808d22f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000100 CR3: 0000000043b00000 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+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f04e3758b88
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:00007fff457e96e8 EFLAGS: 00010246
RAX: 0000200000000100 RBX: 0000000000000004 RCX: 0031656c69662f2e
RDX: 0000000000000008 RSI: 0031656c69662f2e RDI: 0000200000000100
RBP: 00007f04e39e7da0 R08: 00007f04e35ff02c R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007f04e39e5fac
R13: 00007f04e39e5fa0 R14: fffffffffffffffe R15: 00007fff457e9800
 </TASK>