Public bug reported:
After CVE-2014-8989 was fixed in Linux v3.19-rc1~41, ‘unshare -r’ no
longer works.
$ unshare -Ur
unshare: write failed /proc/self/gid_map: Operation not permitted
$ sudo -i
# unshare -r
unshare: write failed /proc/self/gid_map: Operation not permitted
This was fixed in Debian’s util-linux 2.25.2-6.
** Affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: util-linux (Debian)
Importance: Unknown
Status: Unknown
** Bug watch added: Debian Bug tracker #780841
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780841
** Also affects: util-linux (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780841
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1452099
Title:
unshare -r is broken
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