read_mapping_page failed! ERROR: (device loop3): txAbort: ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:3700:15 index -1 is out of range for type 'dtslot [128]' CPU: 1 UID: 0 PID: 17222 Comm: syz.3.1950 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:233 [inline] __ubsan_handle_out_of_bounds+0x11c/0x160 lib/ubsan.c:455 dtInsertEntry.isra.0+0x1348/0x1670 fs/jfs/jfs_dtree.c:3700 dtSplitPage+0x2bde/0x39e0 fs/jfs/jfs_dtree.c:1596 dtSplitUp+0x7ba/0x5970 fs/jfs/jfs_dtree.c:1092 dtInsert+0x8dd/0xb60 fs/jfs/jfs_dtree.c:871 jfs_create+0x645/0xb60 fs/jfs/namei.c:137 lookup_open.isra.0+0x12dc/0x1780 fs/namei.c:4440 open_last_lookups fs/namei.c:4540 [inline] path_openat+0xa95/0x3140 fs/namei.c:4784 do_filp_open+0x20b/0x470 fs/namei.c:4814 do_sys_openat2+0x121/0x290 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_creat fs/open.c:1514 [inline] __se_sys_creat fs/open.c:1508 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1508 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1a1118f749 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:00007f1a11fbc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f1a113e5fa0 RCX: 00007f1a1118f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000740 RBP: 00007f1a11213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1a113e6038 R14: 00007f1a113e5fa0 R15: 00007ffc24481c38 ---[ end trace ]---