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authorNoah Goldstein <goldstein.w.n@gmail.com>2022-09-20 17:58:04 -0700
committerNoah Goldstein <goldstein.w.n@gmail.com>2022-09-28 20:15:16 -0700
commitb0969fa53a28b4ab2159806bf6c99a98999502ee (patch)
tree8aafe93540ffbf58be6b57e5ea5e71ba3fc5c030 /benchtests
parent3e5760fcb48528d48deeb60cb885a97bb731160c (diff)
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x86: Fix wcsnlen-avx2 page cross length comparison [BZ #29591]
Previous implementation was adjusting length (rsi) to match
bytes (eax), but since there is no bound to length this can cause
overflow.

Fix is to just convert the byte-count (eax) to length by dividing by
sizeof (wchar_t) before the comparison.

Full check passes on x86-64 and build succeeds w/ and w/o multiarch.
Diffstat (limited to 'benchtests')
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