loop2: detected capacity change from 0 to 32768
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UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:3392:37
index -1 is out of range for type 'dtslot [128]'
CPU: 0 PID: 8399 Comm: syz-executor.2 Not tainted 6.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0x111/0x150 lib/ubsan.c:348
 ciCompare fs/jfs/jfs_dtree.c:3392 [inline]
 dtSearch+0x211e/0x2450 fs/jfs/jfs_dtree.c:639
 jfs_lookup+0x1a1/0x370 fs/jfs/namei.c:1459
 lookup_one_qstr_excl+0x116/0x180 fs/namei.c:1608
 filename_create+0x1ed/0x530 fs/namei.c:3890
 do_mkdirat+0xb3/0x330 fs/namei.c:4135
 __do_sys_mkdir fs/namei.c:4163 [inline]
 __se_sys_mkdir fs/namei.c:4161 [inline]
 __x64_sys_mkdir+0xf2/0x140 fs/namei.c:4161
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d2a27cae9
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:00007f0d2af450c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f0d2a39bf80 RCX: 00007f0d2a27cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007f0d2a2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0d2a39bf80 R15: 00007fff03063658
 </TASK>
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