loop0: detected capacity change from 0 to 32768 ================================================================================ 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: 5599 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: dump_stack_lvl+0x12e/0x1d0 __ubsan_handle_out_of_bounds+0xac/0xd0 diWrite+0x1116/0x1b10 txCommit+0x43d/0x73e0 jfs_mkdir+0x75c/0x970 vfs_mkdir+0x2da/0x470 do_mkdirat+0x230/0x470 __x64_sys_mkdirat+0x84/0x90 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fcaa348b5a9 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:00007fcaa45cc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fcaa35abf80 RCX: 00007fcaa348b5a9 RDX: 00000000000001ff RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00007fcaa34e6580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd28c922f R14: 00007fcaa45cc300 R15: 0000000000022000 ================================================================================