------------[ cut here ]------------
WARNING: CPU: 0 PID: 4430 at fs/ext4/inode.c:3659 ext4_dirty_folio+0x155/0x310 fs/ext4/inode.c:3659
Modules linked in:
CPU: 0 PID: 4430 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ext4_dirty_folio+0x155/0x310 fs/ext4/inode.c:3659
Code: 49 83 3f 00 74 1f e8 1a c9 5c ff 48 8b 3c 24 48 89 de 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 80 2d ca ff e8 fb c8 5c ff <0f> 0b eb dd e8 f2 c8 5c ff 0f 0b eb af e8 e9 c8 5c ff 48 89 df 48
RSP: 0018:ffffc90003537a50 EFLAGS: 00010293
RAX: ffffffff822416d5 RBX: ffffea0001a7d200 RCX: ffff88807a115940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffffd400034fa40 R08: dffffc0000000000 R09: fffff9400034fa41
R10: fffff9400034fa41 R11: 1ffffd400034fa40 R12: dffffc0000000000
R13: 1ffffd400034fa41 R14: 0000000000000001 R15: ffffea0001a7d228
FS:  00007fb98b5936c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb98b592f98 CR3: 0000000079695000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 set_page_dirty_lock+0x1a/0x30 mm/page-writeback.c:2793
 fuse_copy_finish+0x104/0x200 fs/fuse/dev.c:678
 fuse_dev_do_read+0xc3d/0x11a0 fs/fuse/dev.c:1301
 fuse_dev_read+0xda/0x140 fs/fuse/dev.c:1366
 call_read_iter include/linux/fs.h:2259 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x434/0x920 fs/read_write.c:470
 ksys_read+0x143/0x240 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb98a78f749
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:00007fb98b593038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fb98a9e6090 RCX: 00007fb98a78f749
RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000005
RBP: 00007fb98a813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb98a9e6128 R14: 00007fb98a9e6090 R15: 00007fff64ea1988
 </TASK>