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0004-sx-ssl.c-fix-undefined-behaviour-with-open...
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File 0004-sx-ssl.c-fix-undefined-behaviour-with-openssl-1.1.patch of Package jabberd
From 5a8133bd76e95c18caebcce576b4157afb63985f Mon Sep 17 00:00:00 2001 From: Oleg Girko <ol@infoserver.lv> Date: Fri, 22 Sep 2017 22:18:34 +0100 Subject: [PATCH] sx/ssl.c: fix undefined behaviour with openssl-1.1 BN_dec2bn in OpenSSL 1.1 requires its first argument to point to either pointer to initialised BIGNUM or NULL. Using pointer to uninitialised pointer to BIGNUM is undefined behaviour causing coredumps or other memory corruption. This change fixes missing initialisation overlooked when porting to OpenSSL 1.1 API. Signed-off-by: Oleg Girko <ol@infoserver.lv> --- sx/ssl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sx/ssl.c b/sx/ssl.c index 85fb709..476748f 100644 --- a/sx/ssl.c +++ b/sx/ssl.c @@ -124,7 +124,7 @@ static DH *sx_ssl_make_dh_params(BIGNUM *(*const get_prime)(BIGNUM *), const cha } #else { - BIGNUM *p, *g; + BIGNUM *p, *g = NULL; p = get_prime(NULL); BN_dec2bn(&g, gen); -- 2.9.5
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