Hello,
When I run our application in valgrind it shows memory leak in
dgram_sctp_write:1262.
Our application using openssl-1.0.1 for DTLS over sctp.
The issue seems to be in sending of shutdown alarm. When shutdown alert
is not sent because the socket is not dry, it is stored in bio object,
but when the bio object is freed before this stored alarm can be sent,
the shutdown alarm is not freed.
Possible patch is attached.
Best regards,
Martin Brejcha
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diff -u -u -r openssl-1.0.1i_old/crypto/bio/bss_dgram.c openssl-1.0.1i_new/crypto/bio/bss_dgram.c
--- openssl-1.0.1i_old/crypto/bio/bss_dgram.c 2014-08-06 23:10:56.000000000 +0200
+++ openssl-1.0.1i_new/crypto/bio/bss_dgram.c 2014-08-08 13:26:00.307001406 +0200
@@ -982,7 +982,13 @@
return 0;
data = (bio_dgram_sctp_data *)a->ptr;
- if(data != NULL) OPENSSL_free(data);
+ if(data != NULL)
+ {
+ if(data->saved_message.data != NULL)
+ OPENSSL_free(data->saved_message.data);
+
+ OPENSSL_free(data);
+ }
return(1);
}
