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Fix sloppy mode arguments uninitialized value use 

MemorySanitizer complained about uninitialized reads in
the indexed property code path in JS_GetPropertyValue()
with JS_CLASS_MAPPED_ARGUMENTS objects.
This commit is contained in:
Ben Noordhuis 2023-11-01 04:24:42 +01:00
parent 6dbf01bb1f
commit e140122202
1 changed files with 2 additions and 0 deletions
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quickjs.c
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@ -14774,6 +14774,8 @@ static JSValue js_build_mapped_arguments(JSContext *ctx, int argc,
if (JS_IsException(val))
return val;
p = JS_VALUE_GET_OBJ(val);
p->u.array.u.values = NULL;
p->u.array.count = 0;
/* add the length field (cannot fail) */
pr = add_property(ctx, p, JS_ATOM_length,