A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

ipc: make use of compat ipc_perm helpers

Browse source 
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2017-07-09 10:10:32 -04:00
commit 28327fae62
2 changed files with 8 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

28
ipc/msg.c
View file

@ -591,22 +591,14 @@ static int copy_compat_msqid_from_user(struct msqid64_ds *out, void __user *buf,
memset(out, 0, sizeof(*out));
if (version == IPC_64) {
struct compat_msqid64_ds *p = buf;
struct compat_ipc64_perm v;
if (copy_from_user(&v, &p->msg_perm, sizeof(v)))
if (get_compat_ipc64_perm(&out->msg_perm, &p->msg_perm))
return -EFAULT;
out->msg_perm.uid = v.uid;
out->msg_perm.gid = v.gid;
out->msg_perm.mode = v.mode;
if (get_user(out->msg_qbytes, &p->msg_qbytes))
return -EFAULT;
} else {
struct compat_msqid_ds *p = buf;
struct compat_ipc_perm v;
if (copy_from_user(&v, &p->msg_perm, sizeof(v)))
if (get_compat_ipc_perm(&out->msg_perm, &p->msg_perm))
return -EFAULT;
out->msg_perm.uid = v.uid;
out->msg_perm.gid = v.gid;
out->msg_perm.mode = v.mode;
if (get_user(out->msg_qbytes, &p->msg_qbytes))
return -EFAULT;
}
@ -619,13 +611,7 @@ static int copy_compat_msqid_to_user(void __user *buf, struct msqid64_ds *in,
if (version == IPC_64) {
struct compat_msqid64_ds v;
memset(&v, 0, sizeof(v));
v.msg_perm.key = in->msg_perm.key;
v.msg_perm.uid = in->msg_perm.uid;
v.msg_perm.gid = in->msg_perm.gid;
v.msg_perm.cuid = in->msg_perm.cuid;
v.msg_perm.cgid = in->msg_perm.cgid;
v.msg_perm.mode = in->msg_perm.mode;
v.msg_perm.seq = in->msg_perm.seq;
to_compat_ipc64_perm(&v.msg_perm, &in->msg_perm);
v.msg_stime = in->msg_stime;
v.msg_rtime = in->msg_rtime;
v.msg_ctime = in->msg_ctime;
@ -638,13 +624,7 @@ static int copy_compat_msqid_to_user(void __user *buf, struct msqid64_ds *in,
} else {
struct compat_msqid_ds v;
memset(&v, 0, sizeof(v));
v.msg_perm.key = in->msg_perm.key;
SET_UID(v.msg_perm.uid, in->msg_perm.uid);
SET_GID(v.msg_perm.gid, in->msg_perm.gid);
SET_UID(v.msg_perm.cuid, in->msg_perm.cuid);
SET_GID(v.msg_perm.cgid, in->msg_perm.cgid);
v.msg_perm.mode = in->msg_perm.mode;
v.msg_perm.seq = in->msg_perm.seq;
to_compat_ipc_perm(&v.msg_perm, &in->msg_perm);
v.msg_stime = in->msg_stime;
v.msg_rtime = in->msg_rtime;
v.msg_ctime = in->msg_ctime;