#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/security.h>
+#include <linux/pid.h>
+#include <linux/nsproxy.h>
#include <asm/system.h>
#include <asm/uaccess.h>
static __inline__ int scm_check_creds(struct ucred *creds)
{
- if ((creds->pid == current->tgid || capable(CAP_SYS_ADMIN)) &&
+ if ((creds->pid == task_tgid_vnr(current) || capable(CAP_SYS_ADMIN)) &&
((creds->uid == current->uid || creds->uid == current->euid ||
creds->uid == current->suid) || capable(CAP_SETUID)) &&
((creds->gid == current->gid || creds->gid == current->egid ||
if (!fpl)
return -ENOMEM;
*fplp = fpl;
+ INIT_LIST_HEAD(&fpl->list);
fpl->count = 0;
}
fpp = &fpl->fp[fpl->count];
if (fpl) {
scm->fp = NULL;
- for (i=fpl->count-1; i>=0; i--)
- fput(fpl->fp[i]);
- kfree(fpl);
+ if (current->scm_work_list) {
+ list_add_tail(&fpl->list, current->scm_work_list);
+ } else {
+ LIST_HEAD(work_list);
+
+ current->scm_work_list = &work_list;
+
+ list_add(&fpl->list, &work_list);
+ while (!list_empty(&work_list)) {
+ fpl = list_first_entry(&work_list, struct scm_fp_list, list);
+
+ list_del(&fpl->list);
+ for (i=fpl->count-1; i>=0; i--)
+ fput(fpl->fp[i]);
+ kfree(fpl);
+ }
+
+ current->scm_work_list = NULL;
+ }
}
}
int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
{
- struct cmsghdr __user *cm = (struct cmsghdr __user *)msg->msg_control;
+ struct cmsghdr __user *cm
+ = (__force struct cmsghdr __user *)msg->msg_control;
struct cmsghdr cmhdr;
int cmlen = CMSG_LEN(len);
int err;
if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
goto out;
cmlen = CMSG_SPACE(len);
+ if (msg->msg_controllen < cmlen)
+ cmlen = msg->msg_controllen;
msg->msg_control += cmlen;
msg->msg_controllen -= cmlen;
err = 0;
void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
{
- struct cmsghdr __user *cm = (struct cmsghdr __user*)msg->msg_control;
+ struct cmsghdr __user *cm
+ = (__force struct cmsghdr __user*)msg->msg_control;
int fdmax = 0;
int fdnum = scm->fp->count;
if (fdnum < fdmax)
fdmax = fdnum;
- for (i=0, cmfptr=(int __user *)CMSG_DATA(cm); i<fdmax; i++, cmfptr++)
+ for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
+ i++, cmfptr++)
{
int new_fd;
err = security_file_receive(fp[i]);
new_fpl = kmalloc(sizeof(*fpl), GFP_KERNEL);
if (new_fpl) {
+ INIT_LIST_HEAD(&new_fpl->list);
for (i=fpl->count-1; i>=0; i--)
get_file(fpl->fp[i]);
memcpy(new_fpl, fpl, sizeof(*fpl));