lkml.org 
[lkml]   [2018]   [Dec]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] tipc: fix a missing check of genlmsg_put
Date
genlmsg_put could fail. The fix inserts a check of its return value, and
if it fails, returns -EMSGSIZE.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
net/tipc/netlink_compat.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 6376467e78f8..764aa29612ea 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -904,6 +904,8 @@ static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock)

hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI,
TIPC_NL_PUBL_GET);
+ if (!hdr)
+ return -EMSGSIZE;

nest = nla_nest_start(args, TIPC_NLA_SOCK);
if (!nest) {
--
2.17.2 (Apple Git-113)
\
 
 \ /
  Last update: 2018-12-26 07:10    [W:0.054 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site