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Merge pull request #3359 from ejohnstown/tfm-read-radix-16

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TFM Read Radix 16 OOB Read
This commit is contained in:
toddouska
2020-10-08 14:52:42 -07:00
committed by GitHub
parent c69e9927fa 413b0d171d
commit f0c5fb76bb
1 changed files with 2 additions and 2 deletions
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4
wolfcrypt/src/tfm.c
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@ -5296,13 +5296,13 @@ static int fp_read_radix_16(fp_int *a, const char *str)
else else
return FP_VAL; return FP_VAL;
k += j == DIGIT_BIT;
j &= DIGIT_BIT - 1;
if (k >= FP_SIZE) if (k >= FP_SIZE)
return FP_VAL; return FP_VAL;
a->dp[k] |= ((fp_digit)ch) << j; a->dp[k] |= ((fp_digit)ch) << j;
j += 4; j += 4;
k += j == DIGIT_BIT;
j &= DIGIT_BIT - 1;
} }
a->used = k + 1; a->used = k + 1;