diff options
| -rw-r--r-- | fs/dlm/midcomms.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/fs/dlm/midcomms.c b/fs/dlm/midcomms.c index 92f95ee7003a..e3de268898ed 100644 --- a/fs/dlm/midcomms.c +++ b/fs/dlm/midcomms.c @@ -621,8 +621,23 @@ dlm_midcomms_recv_node_lookup(int nodeid, const union dlm_packet *p, node = nodeid2node(nodeid, allocation); if (!node) { - log_print_ratelimited("received dlm message cmd %d nextcmd %d from node %d in an invalid sequence", - p->header.h_cmd, p->opts.o_nextcmd, nodeid); + switch (p->header.h_cmd) { + case DLM_OPTS: + if (msglen < sizeof(struct dlm_opts)) { + log_print("opts msg too small: %u, will skip this message from node %d", + msglen, nodeid); + return NULL; + } + + log_print_ratelimited("received dlm opts message nextcmd %d from node %d in an invalid sequence", + p->opts.o_nextcmd, nodeid); + break; + default: + log_print_ratelimited("received dlm message cmd %d from node %d in an invalid sequence", + p->header.h_cmd, nodeid); + break; + } + return NULL; } |