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fixed buffer overflow in TypedArray.prototype.lastIndexOf()

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Fabrice Bellard 2025-08-25 15:25:41 +02:00
parent 9ce544289f
commit c927eca49a
1 changed files with 5 additions and 15 deletions
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18
quickjs.c
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@ -53619,22 +53619,12 @@ static JSValue js_typed_array_indexOf(JSContext *ctx, JSValueConst this_val,
if (special == special_lastIndexOf) { if (special == special_lastIndexOf) {
k = len - 1; k = len - 1;
if (argc > 1) { if (argc > 1) {
if (JS_ToFloat64(ctx, &d, argv[1])) int64_t k1;
if (JS_ToInt64Clamp(ctx, &k1, argv[1], -1, len - 1, len))
goto exception; goto exception;
if (isnan(d)) { k = k1;
k = 0; if (k < 0)
} else {
if (d >= 0) {
if (d < k) {
k = d;
}
} else {
d += len;
if (d < 0)
goto done; goto done;
k = d;
}
}
} }
stop = -1; stop = -1;
inc = -1; inc = -1;