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| author | Rich Salz <rsalz@akamai.com> | 2015-05-02 05:10:31 +0200 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2015-05-04 21:00:13 +0200 |
| commit | b4faea50c35d92a67d1369355b49cc3efba78406 (patch) | |
| tree | cfebea69d625f936c9fd7281f1fa3eaa2fa38834 /crypto/cmac/cmac.c | |
| parent | RT2943: Check sizes if -iv and -K arguments (diff) | |
| download | openssl-b4faea50c35d92a67d1369355b49cc3efba78406.tar.xz openssl-b4faea50c35d92a67d1369355b49cc3efba78406.zip | |
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/cmac/cmac.c')
| -rw-r--r-- | crypto/cmac/cmac.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/cmac/cmac.c b/crypto/cmac/cmac.c index 5e8fdc399b..e7db3206f5 100644 --- a/crypto/cmac/cmac.c +++ b/crypto/cmac/cmac.c @@ -90,7 +90,8 @@ static void make_kn(unsigned char *k1, const unsigned char *l, int bl) CMAC_CTX *CMAC_CTX_new(void) { CMAC_CTX *ctx; - ctx = OPENSSL_malloc(sizeof(CMAC_CTX)); + + ctx = OPENSSL_malloc(sizeof(*ctx)); if (!ctx) return NULL; EVP_CIPHER_CTX_init(&ctx->cctx); |