------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2748!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7618 Comm: syz-executor.4 Not tainted 6.1.73-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:ext4_writepages+0x3dd9/0x3de0 fs/ext4/inode.c:2747
Code: c7 d0 f4 2b 8d 4c 89 f2 e8 a4 37 28 02 e9 b9 fb ff ff e8 ea e3 4f ff 0f 0b e8 e3 e3 4f ff 0f 0b e8 1c e9 4f 08 e8 d7 e3 4f ff <0f> 0b 0f 1f 44 00 00 41 57 41 56 41 55 41 54 53 49 89 f7 49 89 fe
RSP: 0018:ffffc9000320f5e0 EFLAGS: 00010287
RAX: ffffffff823a8ee9 RBX: 0000008000000000 RCX: 0000000000040000
RDX: ffffc9001149a000 RSI: 0000000000000077 RDI: 0000000000000078
RBP: ffffc9000320f9d0 R08: ffffffff823a57a0 R09: ffffed1009f16c95
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffffc9000320fc00 R14: 000000d410000000 R15: ffffc9000320f8a0
FS:  00007fa1171216c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020096030 CR3: 000000001ef96000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x3a2/0x670 mm/page-writeback.c:2469
 filemap_fdatawrite_wbc+0x121/0x180 mm/filemap.c:388
 __filemap_fdatawrite_range mm/filemap.c:421 [inline]
 __filemap_fdatawrite mm/filemap.c:427 [inline]
 filemap_flush+0x11a/0x170 mm/filemap.c:454
 ext4_release_file+0x7d/0x300 fs/ext4/file.c:158
 __fput+0x3b7/0x890 fs/file_table.c:320
 task_work_run+0x246/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa11647cda9
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:00007fa1171210c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021
RAX: 0000000000000006 RBX: 00007fa1165ac050 RCX: 00007fa11647cda9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 00007fa1164c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fa1165ac050 R15: 00007ffe4eb29be8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_writepages+0x3dd9/0x3de0 fs/ext4/inode.c:2747
Code: c7 d0 f4 2b 8d 4c 89 f2 e8 a4 37 28 02 e9 b9 fb ff ff e8 ea e3 4f ff 0f 0b e8 e3 e3 4f ff 0f 0b e8 1c e9 4f 08 e8 d7 e3 4f ff <0f> 0b 0f 1f 44 00 00 41 57 41 56 41 55 41 54 53 49 89 f7 49 89 fe
RSP: 0018:ffffc9000320f5e0 EFLAGS: 00010287
RAX: ffffffff823a8ee9 RBX: 0000008000000000 RCX: 0000000000040000
RDX: ffffc9001149a000 RSI: 0000000000000077 RDI: 0000000000000078
RBP: ffffc9000320f9d0 R08: ffffffff823a57a0 R09: ffffed1009f16c95
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffffc9000320fc00 R14: 000000d410000000 R15: ffffc9000320f8a0
FS:  00007fa1171216c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3302e000 CR3: 000000001ef96000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400