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cgroup: Fix sock_cgroup_data on big-endian.

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[ 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>
This commit is contained in:
Cong Wang 2020-07-09 16:28:44 -07:00 • committed by Greg Kroah-Hartman
commit 38b122c0af
1 changed files with 2 additions and 0 deletions
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2
include/linux/cgroup-defs.h
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@ -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;