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Fix crypto_aead_aes256gcm_decrypt_afternm() when clen < 16

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angt 2015-10-30 19:04:32 +01:00
parent 688e1c4742
commit 2042cb7dc7
1 changed files with 5 additions and 1 deletions
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6
src/libsodium/crypto_aead/aes256gcm/aesni/aead_aes256gcm_aesni.c
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@ -642,10 +642,14 @@ crypto_aead_aes256gcm_decrypt_afternm(unsigned char *m, unsigned long long *mlen
if (clen > 16ULL * (1ULL << 32) - 16ULL) {
abort();
}
mlen = clen - 16;
if (mlen_p != NULL) {
*mlen_p = 0U;
}
if (clen < 16) {
return -1;
}
mlen = clen - 16;
memcpy(&n2[0], npub, 12);
*(uint32_t *) &n2[12] = 0x01000000;
aesni_encrypt1(T, _mm_load_si128((const __m128i *) n2), rkeys);