38 lines
1.0 KiB
Diff
38 lines
1.0 KiB
Diff
From ad24941228eafe59fe3807d1659585c4d98eac97 Mon Sep 17 00:00:00 2001
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From: Pauli <pauli@openssl.org>
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Date: Wed, 16 Mar 2022 13:48:27 +1100
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Subject: [PATCH] Fix Coverity 1201763 uninitialised pointer read
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Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
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Reviewed-by: Tomas Mraz <tomas@openssl.org>
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(Merged from https://github.com/openssl/openssl/pull/17890)
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(cherry picked from commit a0238b7ed87998c48b1c92bad7fa82dcbba507f9)
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---
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crypto/bn/bn_exp.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/crypto/bn/bn_exp.c b/crypto/bn/bn_exp.c
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index 9531acfc3c..451e88ac3c 100644
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--- a/crypto/bn/bn_exp.c
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+++ b/crypto/bn/bn_exp.c
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@@ -188,13 +188,14 @@ int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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return ret;
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}
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+ BN_RECP_CTX_init(&recp);
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+
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BN_CTX_start(ctx);
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aa = BN_CTX_get(ctx);
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val[0] = BN_CTX_get(ctx);
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if (val[0] == NULL)
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goto err;
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- BN_RECP_CTX_init(&recp);
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if (m->neg) {
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/* ignore sign of 'm' */
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if (!BN_copy(aa, m))
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--
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2.17.1
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