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fixeria gerrit-no-reply at lists.osmocom.orgfixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/23829 ) Change subject: osmo-bts-trx: discard TRXD PDUs with unexpected version ...................................................................... osmo-bts-trx: discard TRXD PDUs with unexpected version Change-Id: Icdc3d12a7686428046113f9fa8f21a99569e651a Related: SYS#4895, OS#4941, OS#4006 --- M src/osmo-bts-trx/trx_if.c 1 file changed, 11 insertions(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/29/23829/1 diff --git a/src/osmo-bts-trx/trx_if.c b/src/osmo-bts-trx/trx_if.c index e51b2e0..a528599 100644 --- a/src/osmo-bts-trx/trx_if.c +++ b/src/osmo-bts-trx/trx_if.c @@ -945,8 +945,18 @@ /* Pre-clean (initialize) the flags */ bi.flags = 0x00; - /* Parse header depending on the PDU version */ + /* Parse PDU version first */ pdu_ver = buf[0] >> 4; + + /* Make sure that PDU version matches our expectations */ + if (pdu_ver != l1h->config.trxd_pdu_ver_use) { + LOGPPHI(l1h->phy_inst, DTRX, LOGL_ERROR, + "Rx TRXD PDU with unexpected version %u (expected %u)\n", + pdu_ver, l1h->config.trxd_pdu_ver_use); + return -EIO; + } + + /* Parse header depending on the PDU version */ switch (pdu_ver) { case 0: /* Legacy protocol has no version indicator */ -- To view, visit https://gerrit.osmocom.org/c/osmo-bts/+/23829 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bts Gerrit-Branch: master Gerrit-Change-Id: Icdc3d12a7686428046113f9fa8f21a99569e651a Gerrit-Change-Number: 23829 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy at sysmocom.de> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210420/8d2fc229/attachment.htm>