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chown_mapped_rootid: don't double-map root id

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If the user maps container root to his host uid, chown_mapped_rootid
tries to make the same mapping twice and gets -EINVAL.

Reported-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
This commit is contained in:
Serge Hallyn 2014-03-04 09:58:30 -06:00 committed by Stéphane Graber
parent 94863addae
commit f3d7e4ca92
1 changed files with 7 additions and 0 deletions
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7
src/lxc/conf.c
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@ -3439,6 +3439,13 @@ int chown_mapped_root(char *path, struct lxc_conf *conf)
}
return 0;
}
if (rootid == geteuid()) {
// nothing to do
INFO("%s: container root is our uid; no need to chown" ,__func__);
return 0;
}
pid = fork();
if (pid < 0) {
SYSERROR("Failed forking");