------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2810!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 15708 Comm: syz.5.2403 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ext4_do_writepages+0x44fe/0x4500 fs/ext4/inode.c:2809
Code: c6 40 28 9f 8b e8 02 c2 ad fe 90 0f 0b e8 fa 73 46 ff 4c 89 f7 48 c7 c6 20 2c 9f 8b e8 eb c1 ad fe 90 0f 0b e8 e3 73 46 ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc9000c33eec0 EFLAGS: 00010287
RAX: ffffffff827a46dd RBX: 0000004210000000 RCX: 0000000000080000
RDX: ffffc9001b403000 RSI: 00000000000001b6 RDI: 00000000000001b7
RBP: ffffc9000c33f2d0 R08: ffff8880680473d7 R09: 1ffff1100d008e7a
R10: dffffc0000000000 R11: ffffed100d008e7b R12: dffffc0000000000
R13: 0000000000000001 R14: 0000004000000000 R15: 1ffff1100ed798c7
FS:  00007ff6f68356c0(0000) GS:ffff888125c07000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6f67f3d58 CR3: 00000000569b4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ext4_writepages+0x203/0x350 fs/ext4/inode.c:3026
 do_writepages+0x32e/0x550 mm/page-writeback.c:2554
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 filemap_write_and_wait_range+0x21f/0x320 mm/filemap.c:684
 filemap_invalidate_pages mm/filemap.c:2904 [inline]
 kiocb_invalidate_pages+0xb4/0x140 mm/filemap.c:2923
 __iomap_dio_rw+0x9f9/0x1d90 fs/iomap/direct-io.c:722
 iomap_dio_rw+0x45/0xb0 fs/iomap/direct-io.c:847
 ext4_dio_write_iter fs/ext4/file.c:580 [inline]
 ext4_file_write_iter+0x169c/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+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6f598f749
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:00007ff6f6835038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007ff6f5be6090 RCX: 00007ff6f598f749
RDX: 00000000fffffd55 RSI: 0000200000000280 RDI: 0000000000000008
RBP: 00007ff6f5a13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff6f5be6128 R14: 00007ff6f5be6090 R15: 00007ffea4904f38
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_do_writepages+0x44fe/0x4500 fs/ext4/inode.c:2809
Code: c6 40 28 9f 8b e8 02 c2 ad fe 90 0f 0b e8 fa 73 46 ff 4c 89 f7 48 c7 c6 20 2c 9f 8b e8 eb c1 ad fe 90 0f 0b e8 e3 73 46 ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc9000c33eec0 EFLAGS: 00010287
RAX: ffffffff827a46dd RBX: 0000004210000000 RCX: 0000000000080000
RDX: ffffc9001b403000 RSI: 00000000000001b6 RDI: 00000000000001b7
RBP: ffffc9000c33f2d0 R08: ffff8880680473d7 R09: 1ffff1100d008e7a
R10: dffffc0000000000 R11: ffffed100d008e7b R12: dffffc0000000000
R13: 0000000000000001 R14: 0000004000000000 R15: 1ffff1100ed798c7
FS:  00007ff6f68356c0(0000) GS:ffff888125c07000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6f5be7dac CR3: 00000000569b4000 CR4: 00000000003526f0