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Date: Wed, 15 Jan 2014 16:42:08 +0800
From: orc <orc@...server.ru>
To: musl@...ts.openwall.com
Subject: install.sh is wrong with libc.so
In case of executable files (which libc.so is), install.sh is wrong and dangerous.
The sequence of commands of install.sh from 0.9.15:
umask 077
cat < lib/libc.so > /lib/libc.so.tmp.pid # /lib/libc.so.tmp.pid is created with mode 600
mv -f /lib/libc.so.tmp.pid /lib/libc.so
chmod 755 /lib/libc.so # failed with "Permission denied"
After that the system is unusable and requires external assistance.
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