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| author | Kangjie Lu <kjlu@umn.edu> | 2018-12-26 09:09:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-28 03:26:09 +0300 |
| commit | 46273cf7e009231d2b6bc10a926e82b8928a9fb2 (patch) | |
| tree | 73bf3ea3c86d358981738515f96ca11dc4447f15 | |
| parent | ff07d48d7bc0974d4f96a85a4df14564fb09f1ef (diff) | |
| download | linux-46273cf7e009231d2b6bc10a926e82b8928a9fb2.tar.xz | |
tipc: fix a missing check of genlmsg_put
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>
| -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 21f6ccc89401..40f5cae623a7 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) { |