Commit 38b122c0 authored Jul 09, 2020 by Cong Wang Committed by Greg Kroah-Hartman Jul 22, 2020

cgroup: Fix sock_cgroup_data on big-endian.



[ Upstream commit 14b032b8f8fce03a546dcf365454bec8c4a58d7d ]

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: ad0f75e5f57c ("cgroup: fix cgroup_sk_alloc() for sk_clone_lock()")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 94886c86

include/linux/cgroup-defs.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -799,6 +799,7 @@ struct sock_cgroup_data {
		struct {
		u8 is_data : 1;
		u8 no_refcnt : 1;
		u8 unused : 6;
		u8 padding;
		u16 prioidx;
		u32 classid;
		@@ -808,6 +809,7 @@ struct sock_cgroup_data {
		u32 classid;
		u16 prioidx;
		u8 padding;
		u8 unused : 6;
		u8 no_refcnt : 1;
		u8 is_data : 1;
		} __packed;