2.6.24

[James Morris]

On Sat, 26 Jan 2008, Jarod Wilson wrote:

> On Saturday 26 January 2008 05:19:14 am Roland McGrath wrote:
> > Is F-[78] going to stay on 2.6.23 for a while, or switch to 2.6.24 fairly
> > soon?
> 
> Chuck was talking about branching in cvs to start doing 2.6.24 builds for at 
> least F8 as soon as possible for people to test w/o committing to an 
> immediate upgrade from 2.6.23, but I'd assume if testing goes well with 
> 2.6.24, we'll move to it fairly soon.

2.6.24 (and recent 2.6.23 kernels) need the following patch to avoid 
spurious SELinux denials for files in /proc.  It's been sent to Linus & 
stable folk, but may take a few days to be merged due to LCA.  I suggest 
applying this to rawhide asap.

commit b1aa5301b9f88a4891061650c591fb8fe1c1d1da
Author: Stephen Smalley <sds at tycho.nsa.gov>
Date:   Fri Jan 25 13:03:42 2008 -0500

    selinux: fix labeling of /proc/net inodes
    
    The proc net rewrite had a side effect on selinux, leading it to mislabel
    the /proc/net inodes, thereby leading to incorrect denials.  Fix
    security_genfs_sid to ignore extra leading / characters in the path supplied
    by selinux_proc_get_sid since we now get "//net/..." rather than "/net/...".
    
    Signed-off-by: Stephen Smalley <sds at tycho.nsa.gov>
    Signed-off-by: James Morris <jmorris at namei.org>

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index f83b19d..4bf715d 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -1744,6 +1744,9 @@ int security_genfs_sid(const char *fstype,
 	struct ocontext *c;
 	int rc = 0, cmp = 0;
 
+	while (path[0] == '/' && path[1] == '/')
+		path++;
+
 	POLICY_RDLOCK;
 
 	for (genfs = policydb.genfs; genfs; genfs = genfs->next) {