diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-11-21 18:20:28 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-11-21 13:09:43 -0500 |
| commit | 91398a0992c8aa18eb7749060b75761ece5ddc57 (patch) | |
| tree | 4e776ab54477ad1becb6c404805dab8db723729a | |
| parent | 220815a9665f7deca98a09ecca655044f94cfa44 (diff) | |
genetlink: fix genl_set_err() group ID
Fix another really stupid bug - I introduced genl_set_err()
precisely to be able to adjust the group and reject invalid
ones, but then forgot to do so.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/genetlink.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 771af09e90e..1b177ed803b 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -384,6 +384,9 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags) static inline int genl_set_err(struct genl_family *family, struct net *net, u32 portid, u32 group, int code) { + if (WARN_ON_ONCE(group >= family->n_mcgrps)) + return -EINVAL; + group = family->mcgrp_offset + group; return netlink_set_err(net->genl_sock, portid, group, code); } |