loop5: detected capacity change from 0 to 32768 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:631:7 index 128 is out of range for type 's64 [128]' CPU: 0 PID: 724 Comm: syz-executor.5 Not tainted 6.1.0-rc5-syzkaller-00144-g84368d882b96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __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 dbNextAG+0x3f7/0x630 fs/jfs/jfs_dmap.c:631 diAlloc+0x17a/0x1700 fs/jfs/jfs_imap.c:1342 ialloc+0x8c/0xa80 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x141/0xb00 fs/jfs/namei.c:225 vfs_mkdir+0x3b3/0x590 fs/namei.c:4035 do_mkdirat+0x279/0x550 fs/namei.c:4060 __do_sys_mkdirat fs/namei.c:4075 [inline] __se_sys_mkdirat fs/namei.c:4073 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4073 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f871048b639 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:00007f8711229168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f87105abf80 RCX: 00007f871048b639 RDX: 00000000000001ff RSI: 0000000020004f00 RDI: 0000000000000003 RBP: 00007f87104e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe08d7c50f R14: 00007f8711229300 R15: 0000000000022000 ================================================================================