------------[ cut here ]------------
kernel BUG at fs/ext4/extents.c:3199!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1207 Comm: syz-executor.0 Not tainted 5.10.187-syzkaller-989211-g8a427269c016 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:ext4_split_extent_at+0xc47/0x1100 fs/ext4/extents.c:3199
Code: ff e8 0d c9 92 ff 4c 89 ef 48 8d b4 24 00 01 00 00 e8 fd 05 00 00 e9 39 fa ff ff b0 01 84 c0 0f 84 34 f6 ff ff e8 e9 c8 92 ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c cb f4 ff ff 48 89 df e8 e0
RSP: 0018:ffffc9000288ee60 EFLAGS: 00010293
RAX: ffffffff81d7c4b7 RBX: 0000000000000000 RCX: ffff88810b7793c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000288efd8 R08: ffffffff81d7bacf R09: ffffc9000288ef60
R10: fffff52000511ded R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000017
FS:  00007f2063c356c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2063c35d58 CR3: 000000011cb40000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_split_extent+0x370/0x4e0 fs/ext4/extents.c:3380
 ext4_split_convert_extents fs/ext4/extents.c:3708 [inline]
 ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3870 [inline]
 ext4_ext_map_blocks+0x210f/0x6be0 fs/ext4/extents.c:4162
 ext4_map_blocks+0xaa7/0x1f00 fs/ext4/inode.c:646
 ext4_iomap_alloc fs/ext4/inode.c:3516 [inline]
 ext4_iomap_begin+0x798/0xbb0 fs/ext4/inode.c:3566
 iomap_apply+0x116/0x8a0 fs/iomap/apply.c:46
 __iomap_dio_rw+0x767/0x10f0 fs/iomap/direct-io.c:525
 iomap_dio_rw+0x35/0x80 fs/iomap/direct-io.c:613
 ext4_dio_write_iter fs/ext4/file.c:573 [inline]
 ext4_file_write_iter+0x10d2/0x1c80 fs/ext4/file.c:683
 call_write_iter include/linux/fs.h:1976 [inline]
 new_sync_write fs/read_write.c:518 [inline]
 vfs_write+0xb55/0xe70 fs/read_write.c:605
 ksys_write+0x199/0x2c0 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f206c493959
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:00007f2063c350c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f206c5b3050 RCX: 00007f206c493959
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f206c4efc88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f206c5b3050 R15: 00007fffd4d95f38
Modules linked in:
---[ end trace b8e3460b6a7f15ee ]---
RIP: 0010:ext4_split_extent_at+0xc47/0x1100 fs/ext4/extents.c:3199
Code: ff e8 0d c9 92 ff 4c 89 ef 48 8d b4 24 00 01 00 00 e8 fd 05 00 00 e9 39 fa ff ff b0 01 84 c0 0f 84 34 f6 ff ff e8 e9 c8 92 ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c cb f4 ff ff 48 89 df e8 e0
RSP: 0018:ffffc9000288ee60 EFLAGS: 00010293
RAX: ffffffff81d7c4b7 RBX: 0000000000000000 RCX: ffff88810b7793c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000288efd8 R08: ffffffff81d7bacf R09: ffffc9000288ef60
R10: fffff52000511ded R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000017
FS:  00007f2063c356c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2063c35d58 CR3: 000000011cb40000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400