------------[ cut here ]------------
WARNING: CPU: 2 PID: 6623 at fs/ext4/inode.c:3598 ext4_dirty_folio+0xff/0x130 fs/ext4/inode.c:3598
Modules linked in:
CPU: 2 UID: 0 PID: 6623 Comm: syz-executor.3 Not tainted 6.15.0-rc3-syzkaller-ga79be02bba5c #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+0xff/0x130 fs/ext4/inode.c:3598
Code: c1 ed 04 83 e5 01 89 ee e8 be 10 46 ff 40 84 ed 0f 85 70 ff ff ff e8 d0 15 46 ff 90 0f 0b 90 e9 62 ff ff ff e8 c2 15 46 ff 90 <0f> 0b 90 eb 82 48 89 ef e8 54 91 ab ff e9 35 ff ff ff e8 4a 91 ab
RSP: 0018:ffffc9000371f9e8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffea0000e79700 RCX: ffffffff82753986
RDX: ffff88802698a440 RSI: ffffffff82753a2e RDI: ffffea0000e79728
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888036bcd450
R13: ffff88803c240000 R14: dffffc0000000000 R15: ffffea0000e79700
FS:  00007f33625fe6c0(0000) GS:ffff8880d6bb2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002034afa4 CR3: 000000003208a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 folio_mark_dirty+0xce/0x150 mm/page-writeback.c:2874
 unpin_user_pages_dirty_lock+0x1a4/0x220 mm/gup.c:325
 process_vm_rw_single_vec mm/process_vm_access.c:127 [inline]
 process_vm_rw_core.constprop.0+0x880/0x9a0 mm/process_vm_access.c:216
 process_vm_rw+0x2ff/0x360 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+0xe2/0x1c0 mm/process_vm_access.c:299
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f336327cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f33625fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000137
RAX: ffffffffffffffda RBX: 00007f33633ac050 RCX: 00007f336327cee9
RDX: 0000000000000070 RSI: 0000000020c22000 RDI: 0000000000000005
RBP: 00007f33632c949e R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020c22fa0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f33633ac050 R15: 00007ffe90917068
 </TASK>