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| author | Rich Salz <rsalz@akamai.com> | 2015-05-01 23:10:31 -0400 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2015-05-04 15:00:13 -0400 |
| commit | b4faea50c35d92a67d1369355b49cc3efba78406 (patch) | |
| tree | cfebea69d625f936c9fd7281f1fa3eaa2fa38834 /crypto/dsa | |
| parent | 8920a7cd04f43b1a090d0b0a8c9e16b94c6898d4 (diff) | |
| download | openssl-b4faea50c35d92a67d1369355b49cc3efba78406.tar.gz | |
Use safer sizeof variant in malloc
For a local variable:
TYPE *p;
Allocations like this are "risky":
p = OPENSSL_malloc(sizeof(TYPE));
if the type of p changes, and the malloc call isn't updated, you
could get memory corruption. Instead do this:
p = OPENSSL_malloc(sizeof(*p));
Also fixed a few memset() calls that I noticed while doing this.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Diffstat (limited to 'crypto/dsa')
| -rw-r--r-- | crypto/dsa/dsa_asn1.c | 2 | ||||
| -rw-r--r-- | crypto/dsa/dsa_lib.c | 2 | ||||
| -rw-r--r-- | crypto/dsa/dsa_pmeth.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/crypto/dsa/dsa_asn1.c b/crypto/dsa/dsa_asn1.c index d79f261f2a..0f0c515345 100644 --- a/crypto/dsa/dsa_asn1.c +++ b/crypto/dsa/dsa_asn1.c @@ -70,7 +70,7 @@ static int sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, { if (operation == ASN1_OP_NEW_PRE) { DSA_SIG *sig; - sig = OPENSSL_malloc(sizeof(DSA_SIG)); + sig = OPENSSL_malloc(sizeof(*sig)); if (!sig) { DSAerr(DSA_F_SIG_CB, ERR_R_MALLOC_FAILURE); return 0; diff --git a/crypto/dsa/dsa_lib.c b/crypto/dsa/dsa_lib.c index aec1b3639c..2a193c8340 100644 --- a/crypto/dsa/dsa_lib.c +++ b/crypto/dsa/dsa_lib.c @@ -117,7 +117,7 @@ DSA *DSA_new_method(ENGINE *engine) { DSA *ret; - ret = OPENSSL_malloc(sizeof(DSA)); + ret = OPENSSL_malloc(sizeof(*ret)); if (ret == NULL) { DSAerr(DSA_F_DSA_NEW_METHOD, ERR_R_MALLOC_FAILURE); return (NULL); diff --git a/crypto/dsa/dsa_pmeth.c b/crypto/dsa/dsa_pmeth.c index 7aa1054437..853612ac74 100644 --- a/crypto/dsa/dsa_pmeth.c +++ b/crypto/dsa/dsa_pmeth.c @@ -81,7 +81,7 @@ typedef struct { static int pkey_dsa_init(EVP_PKEY_CTX *ctx) { DSA_PKEY_CTX *dctx; - dctx = OPENSSL_malloc(sizeof(DSA_PKEY_CTX)); + dctx = OPENSSL_malloc(sizeof(*dctx)); if (!dctx) return 0; dctx->nbits = 1024; |