]> git.ipfire.org Git - thirdparty/glibc.git/commit
x86: Fix __wcsncmp_avx2 in strcmp-avx2.S [BZ# 28755]
authorNoah Goldstein <goldstein.w.n@gmail.com>
Sun, 9 Jan 2022 22:02:21 +0000 (16:02 -0600)
committerH.J. Lu <hjl.tools@gmail.com>
Thu, 27 Jan 2022 15:28:12 +0000 (07:28 -0800)
commitbe6fb78a1fc4dab9a6afb6a428bd0293676dfad5
treed95ec43d7e32174f8159974ea912b6697b521eef
parent646ec4ebe52a969041a2dafb4f2d7eadac221556
x86: Fix __wcsncmp_avx2 in strcmp-avx2.S [BZ# 28755]

Fixes [BZ# 28755] for wcsncmp by redirecting length >= 2^56 to
__wcscmp_avx2. For x86_64 this covers the entire address range so any
length larger could not possibly be used to bound `s1` or `s2`.

test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass.

Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
(cherry picked from commit ddf0992cf57a93200e0c782e2a94d0733a5a0b87)
sysdeps/x86_64/multiarch/strcmp-avx2.S