diff options
| 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/bn/bn_gf2m.c | |
| parent | 8920a7cd04f43b1a090d0b0a8c9e16b94c6898d4 (diff) | |
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/bn/bn_gf2m.c')
| -rw-r--r-- | crypto/bn/bn_gf2m.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c index c87c5d96f8..50d7c74085 100644 --- a/crypto/bn/bn_gf2m.c +++ b/crypto/bn/bn_gf2m.c @@ -551,7 +551,7 @@ int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, bn_check_top(a); bn_check_top(b); bn_check_top(p); - if ((arr = OPENSSL_malloc(sizeof(int) * max)) == NULL) + if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL) goto err; ret = BN_GF2m_poly2arr(p, arr, max); if (!ret || ret > max) { @@ -609,7 +609,7 @@ int BN_GF2m_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx) bn_check_top(a); bn_check_top(p); - if ((arr = OPENSSL_malloc(sizeof(int) * max)) == NULL) + if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL) goto err; ret = BN_GF2m_poly2arr(p, arr, max); if (!ret || ret > max) { @@ -1025,7 +1025,7 @@ int BN_GF2m_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, bn_check_top(a); bn_check_top(b); bn_check_top(p); - if ((arr = OPENSSL_malloc(sizeof(int) * max)) == NULL) + if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL) goto err; ret = BN_GF2m_poly2arr(p, arr, max); if (!ret || ret > max) { @@ -1084,7 +1084,7 @@ int BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx) int *arr = NULL; bn_check_top(a); bn_check_top(p); - if ((arr = OPENSSL_malloc(sizeof(int) * max)) == NULL) + if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL) goto err; ret = BN_GF2m_poly2arr(p, arr, max); if (!ret || ret > max) { @@ -1214,7 +1214,7 @@ int BN_GF2m_mod_solve_quad(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, int *arr = NULL; bn_check_top(a); bn_check_top(p); - if ((arr = OPENSSL_malloc(sizeof(int) * max)) == NULL) + if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL) goto err; ret = BN_GF2m_poly2arr(p, arr, max); if (!ret || ret > max) { |