UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:749:4
index 255 is out of range for type 'struct dtslot [128]'
CPU: 0 PID: 8324 Comm: syz-executor.4 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xdb/0x130 lib/ubsan.c:283
 diWrite+0x1311/0x1f80 fs/jfs/jfs_imap.c:749
 txCommit+0xa2e/0x6d40 fs/jfs/jfs_txnmgr.c:1250
 jfs_create+0x91b/0xb10 fs/jfs/namei.c:156
 lookup_open fs/namei.c:3413 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x12d0/0x2df0 fs/namei.c:3710
 do_filp_open+0x264/0x4f0 fs/namei.c:3740
 file_open_name fs/open.c:1255 [inline]
 filp_open+0x25a/0x2c0 fs/open.c:1275
 do_coredump+0x206a/0x2800 fs/coredump.c:696
 get_signal+0x1431/0x17b0 kernel/signal.c:2844
 arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7fc888b5a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7fc9638168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffe5 RBX: 00007f7fc89abf80 RCX: 00007f7fc888b5a9
RDX: 0000000000000000 RSI: 000000004d7cd2d9 RDI: 0000000000000005
RBP: 00007f7fc88e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe8a13108f R14: 00007f7fc9638300 R15: 0000000000022000
 </TASK>
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