diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-sanitize.hh')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-sanitize.hh | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/thirdparty/harfbuzz/src/hb-sanitize.hh b/thirdparty/harfbuzz/src/hb-sanitize.hh index 65c2772201..bd3250e580 100644 --- a/thirdparty/harfbuzz/src/hb-sanitize.hh +++ b/thirdparty/harfbuzz/src/hb-sanitize.hh @@ -198,10 +198,11 @@ struct hb_sanitize_context_t : void start_processing () { reset_object (); - if (unlikely (hb_unsigned_mul_overflows (this->end - this->start, HB_SANITIZE_MAX_OPS_FACTOR))) + unsigned m; + if (unlikely (hb_unsigned_mul_overflows (this->end - this->start, HB_SANITIZE_MAX_OPS_FACTOR, &m))) this->max_ops = HB_SANITIZE_MAX_OPS_MAX; else - this->max_ops = hb_clamp ((unsigned) (this->end - this->start) * HB_SANITIZE_MAX_OPS_FACTOR, + this->max_ops = hb_clamp (m, (unsigned) HB_SANITIZE_MAX_OPS_MIN, (unsigned) HB_SANITIZE_MAX_OPS_MAX); this->edit_count = 0; @@ -252,8 +253,9 @@ struct hb_sanitize_context_t : unsigned int a, unsigned int b) const { - return !hb_unsigned_mul_overflows (a, b) && - this->check_range (base, a * b); + unsigned m; + return !hb_unsigned_mul_overflows (a, b, &m) && + this->check_range (base, m); } template <typename T> @@ -262,8 +264,9 @@ struct hb_sanitize_context_t : unsigned int b, unsigned int c) const { - return !hb_unsigned_mul_overflows (a, b) && - this->check_range (base, a * b, c); + unsigned m; + return !hb_unsigned_mul_overflows (a, b, &m) && + this->check_range (base, m, c); } template <typename T> |