From patchwork Sat May 21 14:43:19 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: openbsc[master]: rtp_proxy.c: Ensure msgb_alloc is large enough for largest A... From: Neels Hofmeyr X-Patchwork-Id: 72040 Message-Id: Date: Sat, 21 May 2016 14:43:19 +0000 Review at https://gerrit.osmocom.org/91 rtp_proxy.c: Ensure msgb_alloc is large enough for largest AMR frame In AMR 12.2 (mode 7), the actual RTP payload is 33 bytes. Howeerver, as we store the length of the (dynamically-sized) AMR payload in the first byte, our buffer needs at least 33+1 byte in size. Change-Id: If1ad5d2d68c85733306c75ea62f67fe8fbc143b3 --- M openbsc/src/libtrau/rtp_proxy.c 1 file changed, 1 insertion(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/openbsc refs/changes/91/91/1 diff --git a/openbsc/src/libtrau/rtp_proxy.c b/openbsc/src/libtrau/rtp_proxy.c index 8c982c9..6c04610 100644 --- a/openbsc/src/libtrau/rtp_proxy.c +++ b/openbsc/src/libtrau/rtp_proxy.c @@ -172,7 +172,7 @@ /* always allocate for the maximum possible size to avoid * fragmentation */ new_msg = msgb_alloc(sizeof(struct gsm_data_frame) + - MAX_RTP_PAYLOAD_LEN, "GSM-DATA (TCH)"); + MAX_RTP_PAYLOAD_LEN+1, "GSM-DATA (TCH)"); if (!new_msg) return -ENOMEM;