xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

SELinux: Abstract use of ipc security blobs

Browse Source 
Don't use the ipc->security pointer directly.
Don't use the msg_msg->security pointer directly.
Provide helper functions that provides the security blob pointers.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Casey Schaufler
2018-09-21 17:19:45 -07:00
committed by Kees Cook
parent f4ad8f2c40
commit 7c6538280a
2 changed files with 22 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
security/selinux/hooks.c
View File

@@ -5678,7 +5678,7 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
struct common_audit_data ad;
u32 sid = current_sid();
isec = ipc_perms->security;
isec = selinux_ipc(ipc_perms);
ad.type = LSM_AUDIT_DATA_IPC;
ad.u.ipc_id = ipc_perms->key;
@@ -5735,7 +5735,7 @@ static int selinux_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg)
struct common_audit_data ad;
u32 sid = current_sid();
isec = msq->security;
isec = selinux_ipc(msq);
ad.type = LSM_AUDIT_DATA_IPC;
ad.u.ipc_id = msq->key;
@@ -5784,8 +5784,8 @@ static int selinux_msg_queue_msgsnd(struct kern_ipc_perm *msq, struct msg_msg *m
u32 sid = current_sid();
int rc;
isec = msq->security;
msec = msg->security;
isec = selinux_ipc(msq);
msec = selinux_msg_msg(msg);
/*
* First time through, need to assign label to the message
@@ -5832,8 +5832,8 @@ static int selinux_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *m
u32 sid = task_sid(target);
int rc;
isec = msq->security;
msec = msg->security;
isec = selinux_ipc(msq);
msec = selinux_msg_msg(msg);
ad.type = LSM_AUDIT_DATA_IPC;
ad.u.ipc_id = msq->key;
@@ -5886,7 +5886,7 @@ static int selinux_shm_associate(struct kern_ipc_perm *shp, int shmflg)
struct common_audit_data ad;
u32 sid = current_sid();
isec = shp->security;
isec = selinux_ipc(shp);
ad.type = LSM_AUDIT_DATA_IPC;
ad.u.ipc_id = shp->key;
@@ -5983,7 +5983,7 @@ static int selinux_sem_associate(struct kern_ipc_perm *sma, int semflg)
struct common_audit_data ad;
u32 sid = current_sid();
isec = sma->security;
isec = selinux_ipc(sma);
ad.type = LSM_AUDIT_DATA_IPC;
ad.u.ipc_id = sma->key;
@@ -6069,7 +6069,7 @@ static int selinux_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
static void selinux_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
{
struct ipc_security_struct *isec = ipcp->security;
struct ipc_security_struct *isec = selinux_ipc(ipcp);
*secid = isec->sid;
}