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Vadim Yanitskiy gerrit-no-reply at lists.osmocom.orgVadim Yanitskiy has uploaded this change for review. ( https://gerrit.osmocom.org/13978 Change subject: libmsc/gsm_04_11.c: fix NULL-pointer dereference in gsm340_rx_tpdu() ...................................................................... libmsc/gsm_04_11.c: fix NULL-pointer dereference in gsm340_rx_tpdu() Change-Id: I1e9b351e949efe596295d18f98c8a73c8e013763 Fixes: CID#198451 --- M src/libmsc/gsm_04_11.c 1 file changed, 14 insertions(+), 4 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/78/13978/1 diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c index 22e55dd..9bd0a05 100644 --- a/src/libmsc/gsm_04_11.c +++ b/src/libmsc/gsm_04_11.c @@ -459,14 +459,24 @@ uint8_t da_len_bytes; uint8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */ int rc = 0; - struct msc_a *msc_a = trans->msc_a; - struct gsm_network *net = msc_a_net(msc_a); - struct vlr_subscr *vsub = msc_a_vsub(msc_a); + struct gsm_network *net; + struct vlr_subscr *vsub; rate_ctr_inc(&net->msc_ctrs->ctr[MSC_CTR_SMS_SUBMITTED]); - if (!msc_a || !vsub) + if (!trans->msc_a) { + LOG_TRANS(trans, LOGL_ERROR, "Insufficient info to process TPDU: " + "MSC-A role is NULL?!?\n"); return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; + } + + net = msc_a_net(trans->msc_a); + vsub = msc_a_vsub(trans->msc_a); + if (!net || !vsub) { + LOG_TRANS(trans, LOGL_ERROR, "Insufficient info to process TPDU: " + "gsm_network and/or vlr_subscr is NULL?!?\n"); + return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; + } gsms = sms_alloc(); if (!gsms) -- To view, visit https://gerrit.osmocom.org/13978 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-msc Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I1e9b351e949efe596295d18f98c8a73c8e013763 Gerrit-Change-Number: 13978 Gerrit-PatchSet: 1 Gerrit-Owner: Vadim Yanitskiy <axilirator at gmail.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190510/a8075389/attachment.htm>