Pick #267 to release-3.8 #268
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We were previously setting `--user-xattrs` / `--no-xattrs` based on the current euid when calling `unsquashfs`. However, in a non-setuid install `--fakeroot` build the euid is 0, so the flags will not be set. On distributions other than EL / Fedora (i.e. Debian / Ubuntu which are not selinux native), this can cause failed extraction. Decide if we are performing a rootless extraction based on the host uid, outside of any namespace that is in play. Fixes: sylabs#266
EmmEff
approved these changes
Aug 19, 2021
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Picking #267
fix: Check for host non-root uid when setting unsquashfs flags
We were previously setting
--user-xattrs/--no-xattrsbased onthe current euid when calling
unsquashfs. However, in a non-setuidinstall
--fakerootbuild the euid is 0, so the flags will not beset. On distributions other than EL / Fedora (i.e. Debian / Ubuntu
which are not selinux native), this can cause failed extraction.
Decide if we are performing a rootless extraction based on the host
uid, outside of any namespace that is in play.
Fixes: #266