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authorRich Salz <rsalz@openssl.org>2017-04-11 12:11:34 -0400
committerRich Salz <rsalz@openssl.org>2017-04-11 12:11:34 -0400
commit6302d9373829ff37c257d93f8566f2272968d67d (patch)
treeb3291d548f272caa091663f4a234df752fd10b3f /ssl
parent376dc4e06b4936ff0c9c53b8f53795d0b3774ab3 (diff)
Additional check to handle BAD SSL_write retry
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3123)
Diffstat (limited to 'ssl')
-rw-r--r--ssl/record/rec_layer_s3.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/ssl/record/rec_layer_s3.c b/ssl/record/rec_layer_s3.c
index 2f105a4c4d..c533bbd73a 100644
--- a/ssl/record/rec_layer_s3.c
+++ b/ssl/record/rec_layer_s3.c
@@ -368,7 +368,8 @@ int ssl3_write_bytes(SSL *s, int type, const void *buf_, int len)
* promptly send beyond the end of the users buffer ... so we trap and
* report the error in a way the user will notice
*/
- if ((unsigned int)len < s->rlayer.wnum) {
+ if (((unsigned int)len < s->rlayer.wnum)
+ || ((wb->left != 0) && ((unsigned int)len < (s->rlayer.wnum + s->rlayer.wpend_tot)))) {
SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_BAD_LENGTH);
return -1;
}