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Avoid memset(NULL, _, 0)

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This commit is contained in:
Frank Denis 2018-10-18 13:34:29 +02:00
parent 0d948d4b7e
commit 1dae690ad7
1 changed files with 6 additions and 3 deletions
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5
src/libsodium/crypto_sign/ed25519/ref10/open.c
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@ -75,14 +75,17 @@ crypto_sign_ed25519_open(unsigned char *m, unsigned long long *mlen_p,
}
mlen = smlen - 64;
if (crypto_sign_ed25519_verify_detached(sm, sm + 64, mlen, pk) != 0) {
if (m != NULL) {
memset(m, 0, mlen);
}
goto badsig;
}
if (mlen_p != NULL) {
*mlen_p = mlen;
}
if (m != NULL) {
memmove(m, sm + 64, mlen);
}
return 0;
badsig: