------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2809!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 25932 Comm: syz.9.2084 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ext4_do_writepages+0x4607/0x4610 fs/ext4/inode.c:2808
Code: c6 c0 79 9e 8b e8 99 9f b4 fe 90 0f 0b e8 11 4f 4c ff 4c 89 f7 48 c7 c6 a0 7d 9e 8b e8 82 9f b4 fe 90 0f 0b e8 fa 4e 4c ff 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000aeb6e60 EFLAGS: 00010283
RAX: ffffffff82735c96 RBX: 0000004210000000 RCX: 0000000000080000
RDX: ffffc9000cc5c000 RSI: 00000000000001a0 RDI: 00000000000001a1
RBP: ffffc9000aeb7290 R08: ffff88807fde7317 R09: 1ffff1100ffbce62
R10: dffffc0000000000 R11: ffffed100ffbce63 R12: 0000000000000001
R13: ffffc9000aeb72e0 R14: 0000004000000000 R15: dffffc0000000000
FS:  00007f448d3f46c0(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f462eee56c0 CR3: 0000000032208000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_writepages+0x205/0x350 fs/ext4/inode.c:3025
 do_writepages+0x32e/0x550 mm/page-writeback.c:2634
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 filemap_write_and_wait_range+0x21f/0x320 mm/filemap.c:691
 filemap_invalidate_pages mm/filemap.c:2816 [inline]
 kiocb_invalidate_pages+0xb4/0x140 mm/filemap.c:2835
 __iomap_dio_rw+0x9f8/0x1e30 fs/iomap/direct-io.c:698
 iomap_dio_rw+0x45/0xb0 fs/iomap/direct-io.c:818
 ext4_dio_write_iter fs/ext4/file.c:580 [inline]
 ext4_file_write_iter+0x16a2/0x1bc0 fs/ext4/file.c:721
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5c9/0xb30 fs/read_write.c:686
 ksys_pwrite64 fs/read_write.c:793 [inline]
 __do_sys_pwrite64 fs/read_write.c:801 [inline]
 __se_sys_pwrite64 fs/read_write.c:798 [inline]
 __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f448c58ebe9
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:00007f448d3f4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f448c7b5fa0 RCX: 00007f448c58ebe9
RDX: 0000000000000001 RSI: 0000200000000880 RDI: 0000000000000007
RBP: 00007f448c611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000083 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f448c7b6038 R14: 00007f448c7b5fa0 R15: 00007ffd79bf9998
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_do_writepages+0x4607/0x4610 fs/ext4/inode.c:2808
Code: c6 c0 79 9e 8b e8 99 9f b4 fe 90 0f 0b e8 11 4f 4c ff 4c 89 f7 48 c7 c6 a0 7d 9e 8b e8 82 9f b4 fe 90 0f 0b e8 fa 4e 4c ff 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000aeb6e60 EFLAGS: 00010283
RAX: ffffffff82735c96 RBX: 0000004210000000 RCX: 0000000000080000
RDX: ffffc9000cc5c000 RSI: 00000000000001a0 RDI: 00000000000001a1
RBP: ffffc9000aeb7290 R08: ffff88807fde7317 R09: 1ffff1100ffbce62
R10: dffffc0000000000 R11: ffffed100ffbce63 R12: 0000000000000001
R13: ffffc9000aeb72e0 R14: 0000004000000000 R15: dffffc0000000000
FS:  00007f448d3f46c0(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f094f3000 CR3: 0000000032208000 CR4: 0000000000350ef0