| From 9085a6422900092886da8c404e1c5340c4ff1cbf Mon Sep 17 00:00:00 2001 |
| From: Eric Paris <eparis@redhat.com> |
| Date: Thu, 20 Feb 2014 10:56:45 -0500 |
| Subject: SELinux: bigendian problems with filename trans rules |
| |
| From: Eric Paris <eparis@redhat.com> |
| |
| commit 9085a6422900092886da8c404e1c5340c4ff1cbf upstream. |
| |
| When writing policy via /sys/fs/selinux/policy I wrote the type and class |
| of filename trans rules in CPU endian instead of little endian. On |
| x86_64 this works just fine, but it means that on big endian arch's like |
| ppc64 and s390 userspace reads the policy and converts it from |
| le32_to_cpu. So the values are all screwed up. Write the values in le |
| format like it should have been to start. |
| |
| Signed-off-by: Eric Paris <eparis@redhat.com> |
| Acked-by: Stephen Smalley <sds@tycho.nsa.gov> |
| Signed-off-by: Paul Moore <pmoore@redhat.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| security/selinux/ss/policydb.c | 8 ++++---- |
| 1 file changed, 4 insertions(+), 4 deletions(-) |
| |
| --- a/security/selinux/ss/policydb.c |
| +++ b/security/selinux/ss/policydb.c |
| @@ -3260,10 +3260,10 @@ static int filename_write_helper(void *k |
| if (rc) |
| return rc; |
| |
| - buf[0] = ft->stype; |
| - buf[1] = ft->ttype; |
| - buf[2] = ft->tclass; |
| - buf[3] = otype->otype; |
| + buf[0] = cpu_to_le32(ft->stype); |
| + buf[1] = cpu_to_le32(ft->ttype); |
| + buf[2] = cpu_to_le32(ft->tclass); |
| + buf[3] = cpu_to_le32(otype->otype); |
| |
| rc = put_entry(buf, sizeof(u32), 4, fp); |
| if (rc) |
