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[Backport v4.1-branch] bluetooth: mesh: pb_adv: check SegN in Transaction Continuation PDU #97517

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[Backport v4.1-branch] bluetooth: mesh: pb_adv: check SegN in Transaction Continuation PDU #97517

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2 changes: 1 addition & 1 deletion subsys/bluetooth/mesh/pb_adv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -515,7 +515,7 @@ static void gen_prov_cont(struct prov_rx *rx, struct net_buf_simple *buf)
return;
}

if (seg > link.rx.last_seg) {
if (seg > link.rx.last_seg || seg == 0) {
LOG_ERR("Invalid segment index %u", seg);
prov_failed(PROV_ERR_NVAL_FMT);
return;
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