cgroup: Fix sock_cgroup_data on big-endian.

In order for no_refcnt and is_data to be the lowest order two bits in the 'val' we have to pad out the bitfield of the u8. Fixes: ad0f75e ("cgroup: fix cgroup_sk_alloc() for sk_clone_lock()") Reported-by: Guenter Roeck <[email protected]> Signed-off-by: David S. Miller <[email protected]>
vieko · Jul 9, 2020 · 14b032b · 14b032b
1 parent ce69e56
commit 14b032b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
@@ -792,6 +792,7 @@ struct sock_cgroup_data {
 		struct {
 			u8	is_data : 1;
 			u8	no_refcnt : 1;
+			u8	unused : 6;
 			u8	padding;
 			u16	prioidx;
 			u32	classid;
@@ -801,6 +802,7 @@ struct sock_cgroup_data {
 			u32	classid;
 			u16	prioidx;
 			u8	padding;
+			u8	unused : 6;
 			u8	no_refcnt : 1;
 			u8	is_data : 1;
 		} __packed;