Commit ab81dabd authored by Al Viro's avatar Al Viro

fix sysfs_init_fs_context() in !CONFIG_NET_NS case

Permission checks on current's netns should be done only when
netns are enabled.
Reported-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
Fixes: 23bf1b6bSigned-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent c99c2171
...@@ -71,9 +71,11 @@ static int sysfs_init_fs_context(struct fs_context *fc) ...@@ -71,9 +71,11 @@ static int sysfs_init_fs_context(struct fs_context *fc)
kfc->magic = SYSFS_MAGIC; kfc->magic = SYSFS_MAGIC;
fc->fs_private = kfc; fc->fs_private = kfc;
fc->ops = &sysfs_fs_context_ops; fc->ops = &sysfs_fs_context_ops;
if (netns) {
if (fc->user_ns) if (fc->user_ns)
put_user_ns(fc->user_ns); put_user_ns(fc->user_ns);
fc->user_ns = get_user_ns(netns->user_ns); fc->user_ns = get_user_ns(netns->user_ns);
}
fc->global = true; fc->global = true;
return 0; return 0;
} }
......
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