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Stefan Sperling gerrit-no-reply at lists.osmocom.orgStefan Sperling has uploaded this change for review. ( https://gerrit.osmocom.org/9729 Change subject: check bssgp_tlv_parse() return code in bssgp_rcvmsg() ...................................................................... check bssgp_tlv_parse() return code in bssgp_rcvmsg() The return code from bssgp_tlv_parse() was not checked for a parsing error. In case of a parsing error the stored return code could have been overwritten later in this function. Explicitly check for a parsing error and log corresponding packets. Change-Id: Id3d7c52ec3df2bcf4efcee0e0b14fe22ef96964e Related: OS#3178 --- M src/gb/gprs_bssgp.c 1 file changed, 5 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/29/9729/1 diff --git a/src/gb/gprs_bssgp.c b/src/gb/gprs_bssgp.c index d5d4ea8..1445a56 100644 --- a/src/gb/gprs_bssgp.c +++ b/src/gb/gprs_bssgp.c @@ -1049,6 +1049,11 @@ data_len = msgb_bssgp_len(msg) - sizeof(*budh); rc = bssgp_tlv_parse(&tp, budh->data, data_len); } + if (rc < 0) { + LOGP(DBSSGP, LOGL_ERROR, "Failed to parse BSSGP %s message. Invalid message was: %s\n", + bssgp_pdu_str(pdu_type), msgb_hexdump(msg)); + return rc; + } if (bvci == BVCI_SIGNALLING && TLVP_PRESENT(&tp, BSSGP_IE_BVCI)) bvci = tlvp_val16be(&tp, BSSGP_IE_BVCI); -- To view, visit https://gerrit.osmocom.org/9729 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Id3d7c52ec3df2bcf4efcee0e0b14fe22ef96964e Gerrit-Change-Number: 9729 Gerrit-PatchSet: 1 Gerrit-Owner: Stefan Sperling <ssperling at sysmocom.de> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20180625/051c936d/attachment.htm>