diff options
| author | Kangjie Lu <kjlu@umn.edu> | 2018-12-26 00:09:04 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-05 15:27:02 +0100 |
| commit | 84ae6096e925cc894c0b11f21bf5817f6cd3fd09 (patch) | |
| tree | 1c0c5decbe99615893851e40df9894c9048e2e4f | |
| parent | 0c97734b244ad96515df73ef4d95df8129fd6c0f (diff) | |
tipc: fix a missing check of genlmsg_put
[ Upstream commit 46273cf7e009231d2b6bc10a926e82b8928a9fb2 ]
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/tipc/netlink_compat.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index d2bf92e71150..4f6fbd2f29ad 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -926,6 +926,8 @@ 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) { |