From 089c292825a3b64ed375223751bd84a6da8312c1 Mon Sep 17 00:00:00 2001 From: Pauli Date: Mon, 27 Apr 2020 08:26:39 +1000 Subject: [PATCH] coverity 1462546 Dereference after null check Reviewed-by: Tomas Mraz (Merged from https://github.com/openssl/openssl/pull/11651) --- crypto/evp/m_sigver.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/crypto/evp/m_sigver.c b/crypto/evp/m_sigver.c index 829b861ed2..c77683a69d 100644 --- a/crypto/evp/m_sigver.c +++ b/crypto/evp/m_sigver.c @@ -347,11 +347,13 @@ int EVP_DigestVerifyUpdate(EVP_MD_CTX *ctx, const void *data, size_t dsize) data, dsize); legacy: - /* do_sigver_init() checked that |digest_custom| is non-NULL */ - if (pctx->flag_call_digest_custom - && !ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx)) - return 0; - pctx->flag_call_digest_custom = 0; + if (pctx != NULL) { + /* do_sigver_init() checked that |digest_custom| is non-NULL */ + if (pctx->flag_call_digest_custom + && !ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx)) + return 0; + pctx->flag_call_digest_custom = 0; + } return EVP_DigestUpdate(ctx, data, dsize); } -- 2.34.1