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Don't call memcpy(NULL, 0) which has undefined behavior

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2022-06-27 23:59:20 +02:00
parent 6194053feb
commit 5969a4b5e0
1 changed files with 6 additions and 3 deletions
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3
tests/suites/test_suite_asn1write.function
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@ -417,9 +417,12 @@ void test_asn1_write_bitstrings( data_t *bitstring, int bits,
#if defined(MBEDTLS_ASN1_PARSE_C)
ASSERT_ALLOC( masked_bitstring, byte_length );
if( byte_length != 0 )
{
memcpy( masked_bitstring, bitstring->x, byte_length );
if( bits % 8 != 0 )
masked_bitstring[byte_length - 1] &= ~( 0xff >> ( bits % 8 ) );
}
size_t value_bits = bits;
if( is_named )
{