------------[ cut here ]------------
WARNING: CPU: 0 PID: 5324 at fs/ext4/inode.c:3597 ext4_dirty_folio+0x162/0x1a0 fs/ext4/inode.c:3597
Modules linked in:
CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00065-g3b07108ada81 #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:ext4_dirty_folio+0x162/0x1a0 fs/ext4/inode.c:3597
Code: 64 a7 a7 ff 48 83 3b 00 74 1a e8 49 7f 3d ff 4c 89 e7 4c 89 fe 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d4 98 cc ff e8 2f 7f 3d ff 90 <0f> 0b 90 eb e0 e8 24 7f 3d ff 90 0f 0b 90 eb a7 e8 19 7f 3d ff 4c
RSP: 0018:ffffc9000d357a98 EFLAGS: 00010287
RAX: ffffffff8285e641 RBX: ffffea000135c368 RCX: 0000000000100000
RDX: ffffc9000ec03000 RSI: 00000000000643bf RDI: 00000000000643c0
RBP: 1ffffd400026b868 R08: ffffffff8285e576 R09: 1ffffd400026b868
R10: dffffc0000000000 R11: fffff9400026b869 R12: ffff8880444bde38
R13: ffffea000135c348 R14: 0000000000000001 R15: ffffea000135c340
FS:  00007f48d77f56c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000034afa4 CR3: 0000000043d0a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unpin_user_pages_dirty_lock+0x385/0x510 mm/gup.c:325
 process_vm_rw_single_vec mm/process_vm_access.c:127 [inline]
 process_vm_rw_core mm/process_vm_access.c:216 [inline]
 process_vm_rw+0x8c0/0xc60 mm/process_vm_access.c:284
 __do_sys_process_vm_writev mm/process_vm_access.c:304 [inline]
 __se_sys_process_vm_writev mm/process_vm_access.c:299 [inline]
 __x64_sys_process_vm_writev+0xe0/0x100 mm/process_vm_access.c:299
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48db38d169
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:00007f48d77f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000137
RAX: ffffffffffffffda RBX: 00007f48db5a6080 RCX: 00007f48db38d169
RDX: 0000000000000001 RSI: 0000200000c22000 RDI: 0000000000000004
RBP: 00007f48db40e730 R08: 0000000000000001 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f48db5a6080 R15: 00007ffdebb634f8
 </TASK>