diff options
| author | Cong Wang <cwang@twopensource.com> | 2014-10-14 12:35:08 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-14 17:00:19 -0400 |
| commit | dee49f203a7feef5d00c416b7dc7e34a7caba8e1 (patch) | |
| tree | f3ba47780b9bc7362479f3caae851fe527543f35 /net/rds | |
| parent | 22c0b963d7400971f4c5a1a67b083e3742996640 (diff) | |
rds: avoid calling sock_kfree_s() on allocation failure
It is okay to free a NULL pointer but not okay to mischarge the socket optmem
accounting. Compile test only.
Reported-by: rucsoftsec@gmail.com
Cc: Chien Yen <chien.yen@oracle.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds')
| -rw-r--r-- | net/rds/rdma.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/rds/rdma.c b/net/rds/rdma.c index 4e37c1cbe8b2..40084d843e9f 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -564,12 +564,12 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm, if (rs->rs_bound_addr == 0) { ret = -ENOTCONN; /* XXX not a great errno */ - goto out; + goto out_ret; } if (args->nr_local > UIO_MAXIOV) { ret = -EMSGSIZE; - goto out; + goto out_ret; } /* Check whether to allocate the iovec area */ @@ -578,7 +578,7 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm, iovs = sock_kmalloc(rds_rs_to_sk(rs), iov_size, GFP_KERNEL); if (!iovs) { ret = -ENOMEM; - goto out; + goto out_ret; } } @@ -696,6 +696,7 @@ out: if (iovs != iovstack) sock_kfree_s(rds_rs_to_sk(rs), iovs, iov_size); kfree(pages); +out_ret: if (ret) rds_rdma_free_op(op); else |