diff options
Diffstat (limited to 'vm_backtrace.c')
| -rw-r--r-- | vm_backtrace.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/vm_backtrace.c b/vm_backtrace.c index 8e10d6eb73..3684bcdbf6 100644 --- a/vm_backtrace.c +++ b/vm_backtrace.c @@ -755,11 +755,14 @@ vm_backtrace_to_ary(rb_thread_t *th, int argc, VALUE *argv, int lev_default, int } case 2: lev = NUM2LONG(level); + n = NUM2LONG(vn); if (lev < 0) { rb_raise(rb_eArgError, "negative level (%ld)", lev); } + if (n < 0) { + rb_raise(rb_eArgError, "negative size (%ld)", n); + } lev += lev_plus; - n = NUM2LONG(vn); break; default: lev = n = 0; /* to avoid warning */ |