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net/sctp: use in_compat_syscall for sctp_getsockopt_connectx3 

SCTP unfortunately has a different ABI for SCTP_SOCKOPT_CONNECTX3 for
32-bit and 64-bit callers.  Use in_compat_syscall to correctly
distinguish them on all architectures.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Lutomirski 2016-03-22 14:25:07 -07:00 committed by Linus Torvalds
parent 121cef8f17
commit 96c0e0a908
1 changed files with 1 additions and 1 deletions
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2
net/sctp/socket.c
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@ -1389,7 +1389,7 @@ static int sctp_getsockopt_connectx3(struct sock *sk, int len,
int err = 0;
#ifdef CONFIG_COMPAT
if (is_compat_task()) {
if (in_compat_syscall()) {
struct compat_sctp_getaddrs_old param32;
if (len < sizeof(param32))