RBP: 00007f6242c99090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010001 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f6241fb5fa0 R15: 00007fffb1fc8478
 </TASK>
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2748!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 8824 Comm: syz.1.303 Not tainted 6.16.0-rc5-syzkaller-00193-g40f92e79b0aa #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_do_writepages+0x3f2b/0x3f30 fs/ext4/inode.c:2747
Code: c1 0f 8c 2a fd ff ff 4c 89 e7 e8 60 65 b0 ff e9 1d fd ff ff e8 96 0d 4f ff 90 0f 0b e8 8e 0d 4f ff 90 0f 0b e8 86 0d 4f ff 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66
RSP: 0018:ffffc900044af180 EFLAGS: 00010293
RAX: ffffffff827127ca RBX: 0000004210000000 RCX: ffff888025965a00
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc900044af590 R08: ffff8880773589e7 R09: 1ffff1100ee6b13c
R10: dffffc0000000000 R11: ffffed100ee6b13d R12: 0000000000000001
R13: 0000000000400140 R14: 0000004000000000 R15: ffffc900044af5e0
FS:  00007f6242c996c0(0000) GS:ffff888125c4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6242c78d58 CR3: 000000003367e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ext4_writepages+0x205/0x350 fs/ext4/inode.c:2953
 do_writepages+0x32b/0x550 mm/page-writeback.c:2636
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 file_write_and_wait_range+0x22c/0x330 mm/filemap.c:794
 generic_buffers_fsync_noflush+0x6c/0x180 fs/buffer.c:609
 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline]
 ext4_sync_file+0x332/0xb20 fs/ext4/fsync.c:147
 generic_write_sync include/linux/fs.h:3031 [inline]
 ext4_buffered_write_iter+0x2ca/0x3a0 fs/ext4/file.c:305
 ext4_file_write_iter+0x298/0x1bc0 fs/ext4/file.c:-1
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x548/0xa90 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: 0033:0x7f6241d8e929
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:00007f6242c99038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f6241fb5fa0 RCX: 00007f6241d8e929
RDX: 0000000000000001 RSI: 0000200000000880 RDI: 0000000000000004
RBP: 00007f6242c99090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010001 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f6241fb5fa0 R15: 00007fffb1fc8478
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_do_writepages+0x3f2b/0x3f30 fs/ext4/inode.c:2747
Code: c1 0f 8c 2a fd ff ff 4c 89 e7 e8 60 65 b0 ff e9 1d fd ff ff e8 96 0d 4f ff 90 0f 0b e8 8e 0d 4f ff 90 0f 0b e8 86 0d 4f ff 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66
RSP: 0018:ffffc900044af180 EFLAGS: 00010293
RAX: ffffffff827127ca RBX: 0000004210000000 RCX: ffff888025965a00
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc900044af590 R08: ffff8880773589e7 R09: 1ffff1100ee6b13c
R10: dffffc0000000000 R11: ffffed100ee6b13d R12: 0000000000000001
R13: 0000000000400140 R14: 0000004000000000 R15: ffffc900044af5e0
FS:  00007f6242c996c0(0000) GS:ffff888125c4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3019f9b000 CR3: 000000003367e000 CR4: 00000000003526f0