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As mentioned on libc-alpha, the current code over-estimates the space needed to store the legacy HWCAP subdirectory strings:
[PATCH 1/4] elf: Fix hwcaps string size overestimation
<https://sourceware.org/pipermail/libc-alpha/2022-September/141881.html>
This is particularly visible on s390x, where we allocate about two extra pages.
Upstream commit:
commit a23820f6052a740246fdc7dcd9c43ce8eed0c45a
Author: Javier Pello <devel>
Date: Mon Sep 5 20:09:01 2022 +0200
elf: Fix hwcaps string size overestimation
Commit dad90d528259b669342757c37dedefa8577e2636 added glibc-hwcaps
support for LD_LIBRARY_PATH and, for this, it adjusted the total
string size required in _dl_important_hwcaps. However, in doing so
it inadvertently altered the calculation of the size required for
the power set strings, as the computation of the power set string
size depended on the first value assigned to the total variable,
which is later shifted, resulting in overallocation of string
space. Fix this now by using a different variable to hold the
string size required for glibc-hwcaps.
Signed-off-by: Javier Pello <devel>
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (glibc bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2023:2955