Commit ff89be87 authored Jan 23, 2013 by J. Bruce Fields

nfsd4: require version 4 when enabling or disabling minorversion



The current code will allow silly things like:

	echo "+2 +3 +4 +7.1">/proc/fs/nfsd/versions

Reported-by: Fan Chaoting <fanchaoting@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

parent bca0ec65

fs/nfsd/nfsctl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -534,7 +534,7 @@ static ssize_t __write_versions(struct file file, char buf, size_t size)
		else
		num = simple_strtol(vers, &minorp, 0);
		if (*minorp == '.') {
		if (num < 4)
		if (num != 4)
		return -EINVAL;
		minor = simple_strtoul(minorp+1, NULL, 0);
		if (minor == 0)