[dpdk-dev] [PATCH v2] vhost: fix check if cmsg is NULL
Tomasz Kulasek
tomaszx.kulasek at intel.com
Fri Feb 9 18:05:45 CET 2018
Fixes: 8f972312b8f4 ("vhost: support vhost-user")
Cc: jianfeng.tan at intel.com
Cc: stable at dpdk.org
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski at intel.com>
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek at intel.com>
---
v2 changes:
- Changed fixline to point right commit
---
lib/librte_vhost/socket.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
index 83befdced..8fd47a4d8 100644
--- a/lib/librte_vhost/socket.c
+++ b/lib/librte_vhost/socket.c
@@ -153,6 +153,11 @@ send_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num)
msgh.msg_control = control;
msgh.msg_controllen = sizeof(control);
cmsg = CMSG_FIRSTHDR(&msgh);
+ if (cmsg == NULL) {
+ RTE_LOG(ERR, VHOST_CONFIG, "cmsg == NULL\n");
+ errno = EINVAL;
+ return -1;
+ }
cmsg->cmsg_len = CMSG_LEN(fdsize);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
--
2.14.1
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