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To: glibc-bugs@sourceware.org
Subject: [Bug string/28755] overflow bug in wcsncmp_avx2 and wcsncmp_evex
Date: Thu, 17 Feb 2022 19:48:02 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28755

--- Comment #18 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot g=
nu.org> ---
The release/2.29/master branch has been updated by H.J. Lu
<hjl@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dglibc.git;h=3Da486152569be7ccdd74=
8f669631285e1a16f2e73

commit a486152569be7ccdd748f669631285e1a16f2e73
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Feb 17 08:10:35 2022 -0800

    string: Add a testcase for wcsncmp with SIZE_MAX [BZ #28755]

    Verify that wcsncmp (L("abc"), L("abd"), SIZE_MAX) =3D=3D 0.  The new t=
est
    fails without

    commit ddf0992cf57a93200e0c782e2a94d0733a5a0b87
    Author: Noah Goldstein <goldstein.w.n@gmail.com>
    Date:   Sun Jan 9 16:02:21 2022 -0600

        x86: Fix __wcsncmp_avx2 in strcmp-avx2.S [BZ# 28755]

    and

    commit 7e08db3359c86c94918feb33a1182cd0ff3bb10b
    Author: Noah Goldstein <goldstein.w.n@gmail.com>
    Date:   Sun Jan 9 16:02:28 2022 -0600

        x86: Fix __wcsncmp_evex in strcmp-evex.S [BZ# 28755]

    This is for BZ #28755.

    Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>

    (cherry picked from commit aa5a720056d37cf24924c138a3dbe6dace98e97c)

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