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Subject: [Bug libc/28770] Unexpected return value from realpath() for too
 long results (CVE-2021-3998)
Date: Mon, 24 Jan 2022 22:49:14 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28770

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gn=
u.org> ---
The release/2.33/master branch has been updated by Aurelien Jarno
<aurel32@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dglibc.git;h=3D41980af2d77ecaef34e=
f5470dc76f6137279e47f

commit 41980af2d77ecaef34ef5470dc76f6137279e47f
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date:   Mon Jan 24 21:36:41 2022 +0530

    realpath: Avoid overwriting preexisting error (CVE-2021-3998)

    Set errno and failure for paths that are too long only if no other error
    occurred earlier.

    Related: BZ #28770

    Reviewed-by: Andreas Schwab <schwab@linux-m68k.org>
    Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
    (cherry picked from commit 84d2d0fe20bdf94feed82b21b4d7d136db471f03)

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