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aesni: Fix out-of-bound read when loading 192-bit AES keys

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This commit is contained in:
Tobias Brunner 2022-09-13 15:16:47 +02:00
parent f2456376ae
commit 7217ff5fc5
1 changed files with 3 additions and 1 deletions
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4
src/libstrongswan/plugins/aesni/aesni_key.c
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@ -142,9 +142,11 @@ static __m128i _mm_shuffle_i01(__m128i a, __m128i b)
static void expand192(__m128i *key, __m128i *schedule)
{
__m128i t1, t2, t3;
u_char buf[16] = {};
schedule[0] = t1 = _mm_loadu_si128(key);
t2 = t3 = _mm_loadu_si128(key + 1);
memcpy(buf, key + 1, 8);
t2 = t3 = _mm_loadu_si128((__m128i*)buf);
t2 = assist192(_mm_aeskeygenassist_si128(t2, 0x1), t2, &t1);
schedule[1] = _mm_shuffle_i00(t3, t1);