Merge pull request FRRouting#16398 from FRRouting/mergify/bp/stable/9…

….0/pr-16365 isisd: fix crash when calculating the neighbor spanning tree based on the fragmented LSP (backport FRRouting#16365)
opensourcerouting · Jul 24, 2024 · 99f3a30 · 99f3a30
2 parents de6c3c7 + 043037e
commit 99f3a30
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c
@@ -868,6 +868,9 @@ static int isis_spf_process_lsp(struct isis_spftree *spftree,
 			    || (mt_router_info && !mt_router_info->overload));
 
 lspfragloop:
+	if (!lsp->tlvs)
+		return ISIS_OK;
+
 	if (lsp->hdr.seqno == 0) {
 		zlog_warn("%s: lsp with 0 seq_num - ignore", __func__);
 		return ISIS_WARNING;