------------[ cut here ]------------
kernel BUG at fs/ext4/namei.c:1344!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 638 Comm: syz-executor.4 Not tainted 5.4.268-syzkaller-00012-g51cf29fc2bfc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:dx_insert_block fs/ext4/namei.c:1344 [inline]
RIP: 0010:do_split+0x2300/0x2310 fs/ext4/namei.c:2028
Code: 0d f9 ff ff e8 e1 8d 95 ff 0f 0b e8 0a 46 6c ff e8 d5 8d 95 ff 0f 0b e8 ce 8d 95 ff 0f 0b e8 c7 8d 95 ff 0f 0b e8 c0 8d 95 ff <0f> 0b e8 b9 8d 95 ff 0f 0b e8 b2 8d 95 ff 0f 0b 55 41 57 41 56 41
RSP: 0018:ffff8881e23f72a0 EFLAGS: 00010283
RAX: ffffffff81ceb960 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc90005d6c000 RSI: 0000000000002cf6 RDI: 0000000000002cf7
RBP: ffff8881e23f7490 R08: ffffffff81ceb3cb R09: ffffed103b28c0c2
R10: 0000000000000002 R11: dffffc0000000001 R12: ffff8881cf403022
R13: 0000000000000000 R14: ffff8881cf403020 R15: ffff8881cf403020
FS:  00007f4671f1a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32223000 CR3: 00000001d932b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 make_indexed_dir+0xe85/0x1450 fs/ext4/namei.c:2286
 ext4_add_entry+0xdc2/0x1240 fs/ext4/namei.c:2396
 ext4_rename fs/ext4/namei.c:3980 [inline]
 ext4_rename2+0x27e7/0x3de0 fs/ext4/namei.c:4222
 vfs_rename+0x90e/0xda0 fs/namei.c:4584
 do_renameat2+0x889/0x1110 fs/namei.c:4733
 __do_sys_rename fs/namei.c:4779 [inline]
 __se_sys_rename fs/namei.c:4777 [inline]
 __x64_sys_rename+0x64/0x70 fs/namei.c:4777
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 227d1aebc61532ee ]---
RIP: 0010:dx_insert_block fs/ext4/namei.c:1344 [inline]
RIP: 0010:do_split+0x2300/0x2310 fs/ext4/namei.c:2028
Code: 0d f9 ff ff e8 e1 8d 95 ff 0f 0b e8 0a 46 6c ff e8 d5 8d 95 ff 0f 0b e8 ce 8d 95 ff 0f 0b e8 c7 8d 95 ff 0f 0b e8 c0 8d 95 ff <0f> 0b e8 b9 8d 95 ff 0f 0b e8 b2 8d 95 ff 0f 0b 55 41 57 41 56 41
RSP: 0018:ffff8881e23f72a0 EFLAGS: 00010283
RAX: ffffffff81ceb960 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc90005d6c000 RSI: 0000000000002cf6 RDI: 0000000000002cf7
RBP: ffff8881e23f7490 R08: ffffffff81ceb3cb R09: ffffed103b28c0c2
R10: 0000000000000002 R11: dffffc0000000001 R12: ffff8881cf403022
R13: 0000000000000000 R14: ffff8881cf403020 R15: ffff8881cf403020
FS:  00007f4671f1a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32223000 CR3: 00000001d932b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400