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Diffstat (limited to 'crypto/bn/bn_gf2m.c')
-rw-r--r--crypto/bn/bn_gf2m.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c
index cfa1c7ce1499..2c61da11093f 100644
--- a/crypto/bn/bn_gf2m.c
+++ b/crypto/bn/bn_gf2m.c
@@ -575,7 +575,7 @@ int BN_GF2m_mod_sqr_arr(BIGNUM *r, const BIGNUM *a, const int p[],
bn_check_top(a);
BN_CTX_start(ctx);
if ((s = BN_CTX_get(ctx)) == NULL)
- return 0;
+ goto err;
if (!bn_wexpand(s, 2 * a->top))
goto err;
@@ -699,18 +699,21 @@ int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
int top = p->top;
BN_ULONG *udp, *bdp, *vdp, *cdp;
- bn_wexpand(u, top);
+ if (!bn_wexpand(u, top))
+ goto err;
udp = u->d;
for (i = u->top; i < top; i++)
udp[i] = 0;
u->top = top;
- bn_wexpand(b, top);
+ if (!bn_wexpand(b, top))
+ goto err;
bdp = b->d;
bdp[0] = 1;
for (i = 1; i < top; i++)
bdp[i] = 0;
b->top = top;
- bn_wexpand(c, top);
+ if (!bn_wexpand(c, top))
+ goto err;
cdp = c->d;
for (i = 0; i < top; i++)
cdp[i] = 0;