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Fix memory leak on error path

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Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
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Manuel Pégourié-Gonnard 2020-07-16 09:23:30 +02:00
parent 34c1e7d069
commit e288ec0651
1 changed files with 4 additions and 1 deletions
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5
library/rsa.c
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@ -800,7 +800,10 @@ static int rsa_prepare_blinding( mbedtls_rsa_context *ctx,
/* Unblinding value: Vf = random number, invertible mod N */ /* Unblinding value: Vf = random number, invertible mod N */
do { do {
if( count++ > 10 ) if( count++ > 10 )
return( MBEDTLS_ERR_RSA_RNG_FAILED ); {
ret = MBEDTLS_ERR_RSA_RNG_FAILED;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vf, ctx->len - 1, f_rng, p_rng ) ); MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vf, ctx->len - 1, f_rng, p_rng ) );