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Resolve buffer overflows polartest

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This commit is contained in:
Robert Schmidt
2022-02-21 13:36:41 +01:00
parent 3e2c9af134
commit 65c6456472
1 changed files with 13 additions and 8 deletions
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openair1/PHY/CODING/TESTBENCH/polartest.c
+13 -8
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@@ -158,14 +158,19 @@ if (logFlag){
#endif
}
uint8_t testArrayLength = ceil(testLength / 32.0);
uint8_t coderArrayLength = ceil(coderLength / 32.0);
uint32_t testInput[max(2,testArrayLength)]; //generate randomly
const uint8_t testArrayLength = ceil(testLength / 32.0);
const uint8_t coderArrayLength = ceil(coderLength / 32.0);
// in the polar code, often uint64_t arrays are used, but we work with
// uint32_t arrays below, so realArrayLength is the length that always
// satisfies uint64_t array length
const uint8_t realArrayLength = ((testArrayLength + 1) / 2) * 2;
printf("testArrayLength %d realArrayLength %d\n", testArrayLength, realArrayLength);
uint32_t testInput[realArrayLength]; //generate randomly
uint32_t encoderOutput[coderArrayLength];
uint32_t estimatedOutput[testArrayLength]; //decoder output
memset(testInput,0,sizeof(uint32_t) * testArrayLength);
uint32_t estimatedOutput[realArrayLength]; //decoder output
memset(testInput,0,sizeof(uint32_t) * realArrayLength); // does not reset all
memset(encoderOutput,0,sizeof(uint32_t) * coderArrayLength);
memset(estimatedOutput,0,sizeof(uint32_t) * testArrayLength);
memset(estimatedOutput,0,sizeof(uint32_t) * realArrayLength);
uint8_t encoderOutputByte[coderLength];
double modulatedInput[coderLength]; //channel input
double channelOutput[coderLength]; //add noise
@@ -334,9 +339,9 @@ if (logFlag){
decoderState=0;
nBitError=0;
blockErrorState=0;
memset(testInput,0,sizeof(uint32_t) * testArrayLength);
memset(testInput,0,sizeof(uint32_t) * realArrayLength);
memset(encoderOutput,0,sizeof(uint32_t) * coderArrayLength);
memset(estimatedOutput,0,sizeof(uint32_t) * testArrayLength);
memset(estimatedOutput,0,sizeof(uint32_t) * realArrayLength);
}
//Calculate error statistics for the SNR.