Fix crash in power()

skirpichev · skirpichev · commit 73dd9d21acb8 · 2025-01-21T08:34:26.000+03:00
diff --git a/main.c b/main.c
@@ -2591,7 +2591,7 @@ power(PyObject *self, PyObject *other, PyObject *module)
         else {
             res = MPZ_powm(u, v, w);
         }
-        if (negativeOutput && res->size) {
+        if (negativeOutput && res && res->size) {
             MPZ_Object *tmp = res;
 
             res = MPZ_sub(res, w);

Original file line number	Diff line number	Diff line change
`@@ -2591,7 +2591,7 @@ power(PyObject self, PyObject other, PyObject *module)`
`2591`	`2591`	`else {`
`2592`	`2592`	`res = MPZ_powm(u, v, w);`
`2593`	`2593`	`}`
`2594`		`- if (negativeOutput && res->size) {`
	`2594`	`+ if (negativeOutput && res && res->size) {`
`2595`	`2595`	`MPZ_Object *tmp = res;`
`2596`	`2596`
`2597`	`2597`	`res = MPZ_sub(res, w);`