------------[ cut here ]------------
WARNING: CPU: 0 PID: 5107 at fs/ext4/inode.c:3659 ext4_dirty_folio+0x155/0x310 fs/ext4/inode.c:3659
Modules linked in:
CPU: 0 PID: 5107 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ext4_dirty_folio+0x155/0x310 fs/ext4/inode.c:3659
Code: 49 83 3f 00 74 1f e8 ba 10 5b ff 48 8b 3c 24 48 89 de 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 50 8f c9 ff e8 9b 10 5b ff <0f> 0b eb dd e8 92 10 5b ff 0f 0b eb af e8 89 10 5b ff 48 89 df 48
RSP: 0018:ffffc900032b7a50 EFLAGS: 00010293
RAX: ffffffff82275215 RBX: ffffea0001b438c0 RCX: ffff88807dc50000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffffd4000368718 R08: ffffea0001b438c7 R09: 1ffffd4000368718
R10: dffffc0000000000 R11: fffff94000368719 R12: dffffc0000000000
R13: 1ffffd4000368719 R14: 0000000000000001 R15: ffffea0001b438e8
FS:  00007fd4acea26c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4acea1ff8 CR3: 000000002ddcc000 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+0xc7d/0x11d0 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+0x4a7/0xa00 fs/read_write.c:470
 ksys_read+0x14c/0x250 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd4abf9aef9
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:00007fd4acea2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fd4ac206090 RCX: 00007fd4abf9aef9
RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000005
RBP: 00007fd4ac02fee0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd4ac206128 R14: 00007fd4ac206090 R15: 00007ffcf7380148
 </TASK>