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Merge pull request #6581 from kareem-wolfssl/eccNullKCheck

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Fixed crash in wc_ecc_free.
This commit is contained in:
Sean Parkinson
2023-07-07 10:54:18 +10:00
committed by GitHub
parent 4d25faafe2 fb9e036d5b
commit 52b5adb54a
2 changed files with 7 additions and 1 deletions
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5
wolfcrypt/src/ecc.c
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@ -7654,7 +7654,10 @@ int wc_ecc_free(ecc_key* key)
mp_clear(key->pubkey.y); mp_clear(key->pubkey.y);
mp_clear(key->pubkey.z); mp_clear(key->pubkey.z);
mp_forcezero(key->k); #ifdef ALT_ECC_SIZE
if (key->k)
#endif
mp_forcezero(key->k);
#ifdef WOLFSSL_CUSTOM_CURVES #ifdef WOLFSSL_CUSTOM_CURVES
if (key->deallocSet && key->dp != NULL) if (key->deallocSet && key->dp != NULL)

3
wolfcrypt/src/tfm.c
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@ -4398,6 +4398,9 @@ void fp_clear(fp_int *a)
void fp_forcezero (mp_int * a) void fp_forcezero (mp_int * a)
{ {
if (a == NULL)
return;
int size; int size;
a->used = 0; a->used = 0;
a->sign = FP_ZPOS; a->sign = FP_ZPOS;