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| author |   Sowmini Varadhan <sowmini.varadhan@oracle.com> | 2018-02-22 13:40:27 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-02-23 12:30:52 -0500 |
| commit | 79a5b9727a1cceacd49921b78425ebda91836bd6 (patch) | |
| tree | e03e5079d90724f8191618d5983afdc09868d356 /drivers/atm/idt77252.c | |
| parent | r8169: simplify and improve check for dash (diff) | |
| download | linux-dev-79a5b9727a1cceacd49921b78425ebda91836bd6.tar.xz linux-dev-79a5b9727a1cceacd49921b78425ebda91836bd6.zip | |
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 '')
0 files changed, 0 insertions, 0 deletions