------------[ cut here ]------------
kernel BUG at fs/ext4/ext4_extents.h:200!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1080 Comm: syz-executor.4 Not tainted 5.15.156-syzkaller-1070798-g29d153aabd54 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_split_extent_at+0x10d2/0x10f0 fs/ext4/extents.c:3197
Code: cf cf ff 4c 8b 74 24 70 48 8b 74 24 38 e9 4a fa ff ff e8 c1 9f 8d ff 0f 0b e8 ba 9f 8d ff 0f 0b e8 63 be fc 02 e8 ae 9f 8d ff <0f> 0b e8 a7 9f 8d ff 0f 0b e8 a0 9f 8d ff 0f 0b 66 2e 0f 1f 84 00
RSP: 0018:ffffc900022eee20 EFLAGS: 00010293
RAX: ffffffff81e2c862 RBX: 0000000000000000 RCX: ffff88810db93b40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900022eef98 R08: ffffffff81e2bc58 R09: ffffed102332eba5
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88811e422b00 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f0850ad26c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003f000 CR3: 0000000125247000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_split_extent+0x370/0x4e0 fs/ext4/extents.c:3361
 ext4_split_convert_extents fs/ext4/extents.c:3690 [inline]
 ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3852 [inline]
 ext4_ext_map_blocks+0x223e/0x74a0 fs/ext4/extents.c:4207
 ext4_map_blocks+0xaa7/0x1e00 fs/ext4/inode.c:646
 ext4_iomap_alloc fs/ext4/inode.c:3420 [inline]
 ext4_iomap_begin+0x824/0xd10 fs/ext4/inode.c:3470
 iomap_iter+0x5b5/0xbe0 fs/iomap/iter.c:74
 __iomap_dio_rw+0xb3a/0x1ed0 fs/iomap/direct-io.c:593
 iomap_dio_rw+0x3e/0x90 fs/iomap/direct-io.c:680
 ext4_dio_write_iter fs/ext4/file.c:572 [inline]
 ext4_file_write_iter+0x111c/0x1c80 fs/ext4/file.c:683
 call_write_iter include/linux/fs.h:2204 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xd5d/0x1110 fs/read_write.c:594
 ksys_write+0x199/0x2c0 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:656
 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0859330959
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:00007f0850ad20c8 EFLAGS: 00000246
 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0859450050 RCX: 00007f0859330959
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f085938cc88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0859450050 R15: 00007ffdbe1e51f8
 </TASK>
Modules linked in:
---[ end trace 9174e18f0d4b4891 ]---
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_split_extent_at+0x10d2/0x10f0 fs/ext4/extents.c:3197
Code: cf cf ff 4c 8b 74 24 70 48 8b 74 24 38 e9 4a fa ff ff e8 c1 9f 8d ff 0f 0b e8 ba 9f 8d ff 0f 0b e8 63 be fc 02 e8 ae 9f 8d ff <0f> 0b e8 a7 9f 8d ff 0f 0b e8 a0 9f 8d ff 0f 0b 66 2e 0f 1f 84 00
RSP: 0018:ffffc900022eee20 EFLAGS: 00010293

RAX: ffffffff81e2c862 RBX: 0000000000000000 RCX: ffff88810db93b40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900022eef98 R08: ffffffff81e2bc58 R09: ffffed102332eba5
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88811e422b00 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f0850ad26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40cc5c0000 CR3: 0000000125247000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400