Attention is currently required from: osmith.
pespin has posted comments on this change. ( 
https://gerrit.osmocom.org/c/osmo-bsc-nat/+/28582 )

Change subject: bssap_conn: fix missing length check
......................................................................


Patch Set 2:

(1 comment)

File src/osmo-bsc-nat/bssap_conn.c:

https://gerrit.osmocom.org/c/osmo-bsc-nat/+/28582/comment/d77337ca_9b640c33
PS2, Line 60:                           len = IP_V4_ADDR_LEN;
> see line 74: this function copies all existing IEs except for 
> AOIP_TRASP_ADDR. […]
Ok I see. I think it would be a lot clearer by separating the 2 paths 
beforehand. gsm0808_enc_aoip_trasp_addr should take care of checking internally 
whether there's space in msg_new.

if (tag == GSM0808_IE_AOIP_TRASP_ADDR) {
                rc = gsm0808_enc_aoip_trasp_addr(msg_new, ss);
} else {
                if (len >= msgb_tailroom(msg_new)) {
                        LOGP(DMAIN, LOGL_ERROR, "Tailroom too small to encode 
tag %d into copy of bssmap msg\n", tag);
                        msgb_free(msg_new);
                        return -EINVAL;
                }
                rc = tlv_encode_one(msg_new, def->def[tag].type, tag, len, val);
}



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Gerrit-Project: osmo-bsc-nat
Gerrit-Branch: master
Gerrit-Change-Id: I1fc4c81e139bab3d7d977ef9467f62d8088884db
Gerrit-Change-Number: 28582
Gerrit-PatchSet: 2
Gerrit-Owner: osmith <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: pespin <[email protected]>
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