------------[ cut here ]------------ WARNING: CPU: 0 PID: 5095 at fs/ext4/inode.c:3621 ext4_set_page_dirty+0x28c/0x320 fs/ext4/inode.c:3621 Modules linked in: CPU: 0 PID: 5095 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:ext4_set_page_dirty+0x28c/0x320 fs/ext4/inode.c:3621 Code: 5d 41 5e 41 5f 5d e9 a3 45 cb ff e8 5e 59 6c ff 49 ff cf e9 df fd ff ff e8 51 59 6c ff 49 ff cf e9 39 fe ff ff e8 44 59 6c ff <0f> 0b eb cb e8 3b 59 6c ff 49 ff cf e9 9d fe ff ff e8 2e 59 6c ff RSP: 0018:ffffc9000310fa10 EFLAGS: 00010293 RAX: ffffffff820cefac RBX: ffffea0001662d00 RCX: ffff88807bba3b80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffffd40002cc5a1 R08: ffffea0001662d07 R09: 1ffffd40002cc5a0 R10: dffffc0000000000 R11: fffff940002cc5a1 R12: 00fff00000300013 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffffd40002cc5a0 FS: 00007f5d169876c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5d17392640 CR3: 000000007a951000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: set_page_dirty_lock+0xb8/0xe0 mm/page-writeback.c:2656 fuse_copy_finish+0x14a/0x3e0 fs/fuse/dev.c:684 fuse_dev_do_read+0xc74/0x11a0 fs/fuse/dev.c:1307 fuse_dev_read+0xf8/0x140 fs/fuse/dev.c:1372 call_read_iter include/linux/fs.h:2167 [inline] new_sync_read fs/read_write.c:404 [inline] vfs_read+0x759/0xd60 fs/read_write.c:485 ksys_read+0x152/0x260 fs/read_write.c:623 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f5d17344ef9 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:00007f5d16987028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f5d175b0090 RCX: 00007f5d17344ef9 RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000005 RBP: 00007f5d173d9ee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5d175b0128 R14: 00007f5d175b0090 R15: 00007ffc9f571e28