X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fcore%2Fscm.c;h=ab242cc1accaae7673b76784aa5838a76d9b10c4;hb=1538a093f71c61964a0e8a5b19f0129326724188;hp=530bee8d9ed90448ee2b406b897ada19ec11d28c;hpb=ce9d3c9a6a9aef61525be07fe6ba27d937236aa2;p=linux-2.6-omap-h63xx.git

diff --git a/net/core/scm.c b/net/core/scm.c
index 530bee8d9ed..ab242cc1acc 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -24,6 +24,8 @@
 #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>
@@ -42,7 +44,7 @@
 
 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 ||
@@ -73,6 +75,7 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
 		if (!fpl)
 			return -ENOMEM;
 		*fplp = fpl;
+		INIT_LIST_HEAD(&fpl->list);
 		fpl->count = 0;
 	}
 	fpp = &fpl->fp[fpl->count];
@@ -104,9 +107,25 @@ void __scm_destroy(struct scm_cookie *scm)
 
 	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;
+		}
 	}
 }
 
@@ -194,6 +213,8 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
 	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;
@@ -280,6 +301,7 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl)
 
 	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));