jfs_lookup: dtSearch returned -5 jfs_lookup: dtSearch returned -5 jfs_lookup: dtSearch returned -5 find_entry called with index >= next_index ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:1998:37 index -128 is out of range for type 'struct dtslot[128]' CPU: 0 UID: 0 PID: 7324 Comm: syz.8.147 Not tainted 6.15.0-rc3-syzkaller-00001-g9d7a0577c9db #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_out_of_bounds+0x121/0x150 lib/ubsan.c:453 dtSplitRoot+0xca0/0x1900 fs/jfs/jfs_dtree.c:1998 dtSplitUp fs/jfs/jfs_dtree.c:993 [inline] dtInsert+0x141d/0x6fa0 fs/jfs/jfs_dtree.c:871 jfs_create+0x7c4/0xbb0 fs/jfs/namei.c:137 lookup_open fs/namei.c:3701 [inline] open_last_lookups fs/namei.c:3800 [inline] path_openat+0x194b/0x35d0 fs/namei.c:4036 do_filp_open+0x284/0x4e0 fs/namei.c:4066 do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x249/0x2a0 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd09458e169 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd095320038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd0947b5fa0 RCX: 00007fd09458e169 RDX: 000000000000275a RSI: 0000200000000c80 RDI: ffffffffffffff9c RBP: 00007fd094610a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd0947b5fa0 R15: 00007ffe314ac598 ---[ end trace ]---