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Merge pull request #6503 from SparkiDev/mp_test_tfm_mips

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TFM: fix big endian reading a zero length buffer
This commit is contained in:
David Garske
2023-06-21 11:05:40 -07:00
committed by GitHub
parent 3b3c175af0 e17f86d145
commit 70c3e84735
1 changed files with 4 additions and 0 deletions
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4
wolfcrypt/src/tfm.c
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@ -3864,6 +3864,10 @@ int fp_read_unsigned_bin(fp_int *a, const unsigned char *b, int c)
/* zero the int */ /* zero the int */
fp_zero (a); fp_zero (a);
if (c == 0) {
return FP_OKAY;
}
/* if input b excess max, then truncate */ /* if input b excess max, then truncate */
if (c > 0 && (word32)c > maxC) { if (c > 0 && (word32)c > maxC) {
int excess = (c - maxC); int excess = (c - maxC);