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-rw-r--r--Modules/socketmodule.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index f3654c9..42aec59 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -1212,9 +1212,9 @@ makesockaddr(SOCKET_T sockfd, struct sockaddr *addr, size_t addrlen, int proto)
{
struct sockaddr_un *a = (struct sockaddr_un *) addr;
#ifdef __linux__
- if (a->sun_path[0] == 0) { /* Linux abstract namespace */
- addrlen -= offsetof(struct sockaddr_un, sun_path);
- return PyBytes_FromStringAndSize(a->sun_path, addrlen);
+ size_t linuxaddrlen = addrlen - offsetof(struct sockaddr_un, sun_path);
+ if (linuxaddrlen > 0 && a->sun_path[0] == 0) { /* Linux abstract namespace */
+ return PyBytes_FromStringAndSize(a->sun_path, linuxaddrlen);
}
else
#endif /* linux */