[NETFILTER]: x_tables: don't use __copy_{from,to}_user on unchecked m…

…emory in compat layer Noticed by Linus Torvalds <[email protected]> Signed-off-by: Patrick McHardy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
kyagi · May 4, 2006 · 7800007 · 7800007
1 parent 7582e9d
commit 7800007
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
@@ -1441,7 +1441,7 @@ static int compat_copy_entry_to_user(struct ipt_entry *e,
 	ret = -EFAULT;
 	origsize = *size;
 	ce = (struct compat_ipt_entry __user *)*dstptr;
-	if (__copy_to_user(ce, e, sizeof(struct ipt_entry)))
+	if (copy_to_user(ce, e, sizeof(struct ipt_entry)))
 		goto out;
 
 	*dstptr += sizeof(struct compat_ipt_entry);
@@ -1459,9 +1459,9 @@ static int compat_copy_entry_to_user(struct ipt_entry *e,
 		goto out;
 	ret = -EFAULT;
 	next_offset = e->next_offset - (origsize - *size);
-	if (__put_user(target_offset, &ce->target_offset))
+	if (put_user(target_offset, &ce->target_offset))
 		goto out;
-	if (__put_user(next_offset, &ce->next_offset))
+	if (put_user(next_offset, &ce->next_offset))
 		goto out;
 	return 0;
 out:

diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
@@ -289,7 +289,7 @@ int xt_compat_match(void *match, void **dstptr, int *size, int convert)
 		case COMPAT_TO_USER:
 			pm = (struct xt_entry_match *)match;
 			msize = pm->u.user.match_size;
-			if (__copy_to_user(*dstptr, pm, msize)) {
+			if (copy_to_user(*dstptr, pm, msize)) {
 				ret = -EFAULT;
 				break;
 			}
@@ -366,7 +366,7 @@ int xt_compat_target(void *target, void **dstptr, int *size, int convert)
 		case COMPAT_TO_USER:
 			pt = (struct xt_entry_target *)target;
 			tsize = pt->u.user.target_size;
-			if (__copy_to_user(*dstptr, pt, tsize)) {
+			if (copy_to_user(*dstptr, pt, tsize)) {
 				ret = -EFAULT;
 				break;
 			}