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authorTrent Jaeger <tjaeger@cse.psu.edu>2006-01-06 13:22:39 -0800
committerDavid S. Miller <davem@davemloft.net>2006-01-06 13:22:39 -0800
commit5f8ac64b15172c7ced7d7990eb28342092bc751b (patch)
tree63046817c9a6e8db513379337f01289c045a5d63
parent69549ddd2f894c4cead50ee2b60cc02990c389ad (diff)
[LSM-IPSec]: Corrections to LSM-IPSec Nethooks
This patch contains two corrections to the LSM-IPsec Nethooks patches previously applied. (1) free a security context on a failed insert via xfrm_user interface in xfrm_add_policy. Memory leak. (2) change the authorization of the allocation of a security context in a xfrm_policy or xfrm_state from both relabelfrom and relabelto to setcontext. Signed-off-by: Trent Jaeger <tjaeger@cse.psu.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/xfrm/xfrm_user.c1
-rw-r--r--security/selinux/include/av_perm_to_string.h3
-rw-r--r--security/selinux/include/av_permissions.h3
-rw-r--r--security/selinux/xfrm.c8
4 files changed, 4 insertions, 11 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 92e2b804c606..ac87a09ba83e 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -802,6 +802,7 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
excl = nlh->nlmsg_type == XFRM_MSG_NEWPOLICY;
err = xfrm_policy_insert(p->dir, xp, excl);
if (err) {
+ security_xfrm_policy_free(xp);
kfree(xp);
return err;
}
diff --git a/security/selinux/include/av_perm_to_string.h b/security/selinux/include/av_perm_to_string.h
index 71aeb12f07c8..591e98d9315a 100644
--- a/security/selinux/include/av_perm_to_string.h
+++ b/security/selinux/include/av_perm_to_string.h
@@ -238,5 +238,4 @@
S_(SECCLASS_NSCD, NSCD__SHMEMHOST, "shmemhost")
S_(SECCLASS_ASSOCIATION, ASSOCIATION__SENDTO, "sendto")
S_(SECCLASS_ASSOCIATION, ASSOCIATION__RECVFROM, "recvfrom")
- S_(SECCLASS_ASSOCIATION, ASSOCIATION__RELABELFROM, "relabelfrom")
- S_(SECCLASS_ASSOCIATION, ASSOCIATION__RELABELTO, "relabelto")
+ S_(SECCLASS_ASSOCIATION, ASSOCIATION__SETCONTEXT, "setcontext")
diff --git a/security/selinux/include/av_permissions.h b/security/selinux/include/av_permissions.h
index d1d0996049e3..d7f02edf3930 100644
--- a/security/selinux/include/av_permissions.h
+++ b/security/selinux/include/av_permissions.h
@@ -908,8 +908,7 @@
#define ASSOCIATION__SENDTO 0x00000001UL
#define ASSOCIATION__RECVFROM 0x00000002UL
-#define ASSOCIATION__RELABELFROM 0x00000004UL
-#define ASSOCIATION__RELABELTO 0x00000008UL
+#define ASSOCIATION__SETCONTEXT 0x00000004UL
#define NETLINK_KOBJECT_UEVENT_SOCKET__IOCTL 0x00000001UL
#define NETLINK_KOBJECT_UEVENT_SOCKET__READ 0x00000002UL
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index c4d87d4dca7b..5b7776504e4c 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -137,15 +137,9 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_us
* Must be permitted to relabel from default socket type (process type)
* to specified context
*/
- rc = avc_has_perm(tsec->sid, tsec->sid,
- SECCLASS_ASSOCIATION,
- ASSOCIATION__RELABELFROM, NULL);
- if (rc)
- goto out;
-
rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
SECCLASS_ASSOCIATION,
- ASSOCIATION__RELABELTO, NULL);
+ ASSOCIATION__SETCONTEXT, NULL);
if (rc)
goto out;