1 files changed, 9 insertions, 15 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 2ae7d3cb8df4..aae1e794fe48 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2855,8 +2855,7 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb, struct avc_audit_data *ad
 
         nexthdr = ip6->nexthdr;
         offset += sizeof(_ipv6h);
-        offset = ipv6_skip_exthdr(skb, offset, &nexthdr,
-                                  skb->tail - skb->head - offset);
+        offset = ipv6_skip_exthdr(skb, offset, &nexthdr);
         if (offset < 0)
                 goto out;
 
@@ -3668,7 +3667,7 @@ static void msg_msg_free_security(struct msg_msg *msg)
 }
 
 static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
-                        u16 sclass, u32 perms)
+                        u32 perms)
 {
         struct task_security_struct *tsec;
         struct ipc_security_struct *isec;
@@ -3680,7 +3679,7 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
         AVC_AUDIT_DATA_INIT(&ad, IPC);
         ad.u.ipc_id = ipc_perms->key;
 
-        return avc_has_perm(tsec->sid, isec->sid, sclass, perms, &ad);
+        return avc_has_perm(tsec->sid, isec->sid, isec->sclass, perms, &ad);
 }
 
 static int selinux_msg_msg_alloc_security(struct msg_msg *msg)
@@ -3765,7 +3764,7 @@ static int selinux_msg_queue_msgctl(struct msg_queue *msq, int cmd)
                 return 0;
         }
 
-        err = ipc_has_perm(&msq->q_perm, SECCLASS_MSGQ, perms);
+        err = ipc_has_perm(&msq->q_perm, perms);
         return err;
 }
 
@@ -3917,7 +3916,7 @@ static int selinux_shm_shmctl(struct shmid_kernel *shp, int cmd)
                 return 0;
         }
 
-        err = ipc_has_perm(&shp->shm_perm, SECCLASS_SHM, perms);
+        err = ipc_has_perm(&shp->shm_perm, perms);
         return err;
 }
 
@@ -3936,7 +3935,7 @@ static int selinux_shm_shmat(struct shmid_kernel *shp,
         else
                 perms = SHM__READ | SHM__WRITE;
 
-        return ipc_has_perm(&shp->shm_perm, SECCLASS_SHM, perms);
+        return ipc_has_perm(&shp->shm_perm, perms);
 }
 
 /* Semaphore security operations */
@@ -4025,7 +4024,7 @@ static int selinux_sem_semctl(struct sem_array *sma, int cmd)
                 return 0;
         }
 
-        err = ipc_has_perm(&sma->sem_perm, SECCLASS_SEM, perms);
+        err = ipc_has_perm(&sma->sem_perm, perms);
         return err;
 }
 
@@ -4039,18 +4038,13 @@ static int selinux_sem_semop(struct sem_array *sma,
         else
                 perms = SEM__READ;
 
-        return ipc_has_perm(&sma->sem_perm, SECCLASS_SEM, perms);
+        return ipc_has_perm(&sma->sem_perm, perms);
 }
 
 static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 {
-        struct ipc_security_struct *isec = ipcp->security;
-        u16 sclass = SECCLASS_IPC;
         u32 av = 0;
 
-        if (isec && isec->magic == SELINUX_MAGIC)
-                sclass = isec->sclass;
-
         av = 0;
         if (flag & S_IRUGO)
                 av |= IPC__UNIX_READ;
@@ -4060,7 +4054,7 @@ static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
         if (av == 0)
                 return 0;
 
-        return ipc_has_perm(ipcp, sclass, av);
+        return ipc_has_perm(ipcp, av);
 }
 
 /* module stacking operations */