------------[ cut here ]------------
WARNING: CPU: 0 PID: 6290 at fs/ext4/inode.c:3931 ext4_dirty_folio+0x167/0x1b0 fs/ext4/inode.c:3931
Modules linked in:
CPU: 0 UID: 0 PID: 6290 Comm: syz.0.61 Not tainted 6.16.0-rc4-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_dirty_folio+0x167/0x1b0 fs/ext4/inode.c:3931
Code: 9f 88 ae ff 49 83 3f 00 74 1a e8 84 30 4d ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 6f d0 d0 ff e8 6a 30 4d ff 90 <0f> 0b 90 eb e0 e8 5f 30 4d ff 90 0f 0b 90 eb a7 e8 54 30 4d ff 48
RSP: 0018:ffffc90003f5f930 EFLAGS: 00010283
RAX: ffffffff82731d26 RBX: ffffea0001baca00 RCX: 0000000000080000
RDX: ffffc9000bd39000 RSI: 00000000000000bb RDI: 00000000000000bc
RBP: 1ffffd4000375940 R08: ffffea0001baca07 R09: 1ffffd4000375940
R10: dffffc0000000000 R11: fffff94000375941 R12: ffff888011ad6458
R13: 1ffffd4000375941 R14: 0000000000000001 R15: ffffea0001baca28
FS:  00007eff1eb306c0(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc85d6f000 CR3: 0000000031d70000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 folio_mark_dirty_lock+0xa8/0xe0 mm/page-writeback.c:2873
 set_page_dirty_lock+0x5e/0x140 mm/folio-compat.c:51
 fuse_copy_finish+0x105/0x200 fs/fuse/dev.c:840
 fuse_dev_do_read+0xcc9/0x1240 fs/fuse/dev.c:1480
 fuse_dev_read+0x159/0x1f0 fs/fuse/dev.c:1545
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x4cd/0x980 fs/read_write.c:572
 ksys_read+0x145/0x250 fs/read_write.c:715
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff1dd8e929
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007eff1eb30038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007eff1dfb5fa0 RCX: 00007eff1dd8e929
RDX: 00000000fffffcbd RSI: 00002000000008c0 RDI: 0000000000000003
RBP: 00007eff1de10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007eff1dfb5fa0 R15: 00007fff56f78028
 </TASK>