Merge pull request FRRouting#16396 from FRRouting/mergify/bp/stable/1…

…0.0/pr-16365 isisd: fix crash when calculating the neighbor spanning tree based on the fragmented LSP (backport FRRouting#16365)
opensourcerouting · Jul 20, 2024 · c9bd77c · c9bd77c
2 parents 0037fb4 + f5121be
commit c9bd77c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c
@@ -873,6 +873,9 @@ 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;