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Don't read past the end of the Ruby string

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Ruby strings don't always have a null terminator, so we can't use
it as a regular C string. By reading only the first len bytes of
the Ruby string, we won't read past the end of the Ruby string.
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Peter Zhu 2020-09-01 06:01:32 -04:00 • committed by GitHub
parent a137874e67
commit 21ad4075a7
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Notes: git 2020-09-01 19:02:04 +09:00 
Merged: https://github.com/ruby/ruby/pull/3487

Merged-By: nobu <nobu@ruby-lang.org>
1 changed files with 1 additions and 1 deletions
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2
gc.c
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@ -11667,7 +11667,7 @@ rb_raw_obj_info(char *buff, const int buff_size, VALUE obj)
}
break;
case T_STRING: {
APPENDF((BUFF_ARGS, "%s", RSTRING_PTR(obj)));
APPENDF((BUFF_ARGS, "%.*s", (int)RSTRING_LEN(obj), RSTRING_PTR(obj)));
break;
}
case T_MOVED: {