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extern/hunspell/intl/vasnprintf:.c Fix heap memory overrun bug.

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npt-1707 2025-05-03 01:23:12 +08:00
parent 043bbb07d4
commit 262aa008e7
1 changed files with 3 additions and 1 deletions
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4
extern/hunspell/intl/vasnprintf.c vendored
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@ -758,7 +758,9 @@ convert_to_decimal (mpn_t a, size_t extra_zeroes)
size_t a_len = a.nlimbs;
/* 0.03345 is slightly larger than log(2)/(9*log(10)). */
size_t c_len = 9 * ((size_t)(a_len * (GMP_LIMB_BITS * 0.03345f)) + 1);
char *c_ptr = (char *) malloc (xsum (c_len, extra_zeroes));
/* We need extra_zeroes bytes for zeroes, followed by c_len bytes for the
digits of a, followed by 1 byte for the terminating NUL. */
char *c_ptr = (char *) malloc (xsum (xsum (extra_zeroes, c_len), 1));
if (c_ptr != NULL)
{
char *d_ptr = c_ptr;