diff options
| -rw-r--r-- | lib/mgmt_msg.c | 5 | ||||
| -rw-r--r-- | lib/mgmt_msg.h | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/lib/mgmt_msg.c b/lib/mgmt_msg.c index b03dbe8cc3..23cfbc3b01 100644 --- a/lib/mgmt_msg.c +++ b/lib/mgmt_msg.c @@ -111,6 +111,11 @@ enum mgmt_msg_rsched mgmt_msg_read(struct mgmt_msg_state *ms, int fd, * therefor the stream is too small to fit the message.. * Resize the stream to fit. */ + if (mhdr->len > MGMT_MSG_MAX_MSG_ALLOC_LEN) { + MGMT_MSG_ERR(ms, "corrupt msg len rcvd %u", + mhdr->len); + return MSR_DISCONNECT; + } news = stream_new(mhdr->len); stream_put(news, mhdr, left); stream_set_endp(news, left); diff --git a/lib/mgmt_msg.h b/lib/mgmt_msg.h index 3195d4a7fb..6bdc9a6cfc 100644 --- a/lib/mgmt_msg.h +++ b/lib/mgmt_msg.h @@ -24,6 +24,8 @@ DECLARE_MTYPE(MSG_CONN); #define MGMT_MSG_VERSION_PROTOBUF 0 #define MGMT_MSG_VERSION_NATIVE 1 +/* The absolute maximum message size (16MB) */ +#define MGMT_MSG_MAX_MSG_ALLOC_LEN (16 * 1024 * 1024) struct mgmt_msg_state { struct stream *ins; |