Have secp256k1_ge_set_all_gej_var initialize all fields.
Previous behaviour would not initialize r->y values in the case where infinity is passed in. Furthermore, the previous behaviour wouldn't initialize anything in the case where all inputs were infinity.
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@ -119,7 +119,9 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a
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size_t last_i = SIZE_MAX;
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for (i = 0; i < len; i++) {
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if (!a[i].infinity) {
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if (a[i].infinity) {
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secp256k1_ge_set_infinity(&r[i]);
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} else {
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/* Use destination's x coordinates as scratch space */
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if (last_i == SIZE_MAX) {
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r[i].x = a[i].z;
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@ -147,7 +149,6 @@ static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a
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r[last_i].x = u;
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for (i = 0; i < len; i++) {
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r[i].infinity = a[i].infinity;
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if (!a[i].infinity) {
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secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x);
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}
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