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Give a better error if an attempt is made to set a zero length groups list
[openssl.git]
/
ssl
/
t1_lib.c
diff --git
a/ssl/t1_lib.c
b/ssl/t1_lib.c
index 156497988a622e3484fbca499fe307dbbcf9f2ec..b8b9fbda3900cb67da0d206db34279e98523a831 100644
(file)
--- a/
ssl/t1_lib.c
+++ b/
ssl/t1_lib.c
@@
-343,6
+343,10
@@
int tls1_set_groups(uint16_t **pext, size_t *pextlen,
*/
unsigned long dup_list = 0;
+ if (ngroups == 0) {
+ SSLerr(SSL_F_TLS1_SET_GROUPS, SSL_R_BAD_LENGTH);
+ return 0;
+ }
if ((glist = OPENSSL_malloc(ngroups * sizeof(*glist))) == NULL) {
SSLerr(SSL_F_TLS1_SET_GROUPS, ERR_R_MALLOC_FAILURE);
return 0;