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authorSowmini Varadhan <sowmini.varadhan@oracle.com>2018-02-22 13:40:27 -0800
committerDavid S. Miller <davem@davemloft.net>2018-02-23 12:30:52 -0500
commit79a5b9727a1cceacd49921b78425ebda91836bd6 (patch)
treee03e5079d90724f8191618d5983afdc09868d356 /drivers/atm
parent9dbe7896d95af114fcb5554b53cf796ca9293b13 (diff)
downloadlinux-79a5b9727a1cceacd49921b78425ebda91836bd6.tar.bz2
rds: rds_msg_zcopy should return error of null rm->data.op_mmp_znotifier
if either or both of MSG_ZEROCOPY and SOCK_ZEROCOPY have not been specified, the rm->data.op_mmp_znotifier allocation will be skipped. In this case, it is invalid ot pass down a cmsghdr with RDS_CMSG_ZCOPY_COOKIE, so return EINVAL from rds_msg_zcopy for this case. Reported-by: syzbot+f893ae7bb2f6456dfbc3@syzkaller.appspotmail.com Fixes: 0cebaccef3ac ("rds: zerocopy Tx support.") Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Willem de Bruijn <willemb@google.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/atm')
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