ssl/quic/quic_ackm.c: fix unhandled memory failure in tx pkt history map insert

This can cause error when freeing txpim as it can be still in use so the
assert in it fails.

Fixes: fa4e92a70a5f "QUIC ACK Manager, Statistics Manager and Congestion Control API"
Reviewed-by: Saša Nedvědický <sashan@openssl.org>
Reviewed-by: Nikola Pajkovsky <nikolap@openssl.org>
Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
MergeDate: Tue May 26 09:59:05 2026
(Merged from https://github.com/openssl/openssl/pull/31258)

diff --git a/ssl/quic/quic_ackm.c b/ssl/quic/quic_ackm.c
index 503a6eae19ec9f4c50f392f736f21af33c28478d..3d419c478ba3b8926b65f68904696b71250b6e69 100644 (file)
--- a/ssl/quic/quic_ackm.c
+++ b/ssl/quic/quic_ackm.c
@@ -117,6 +117,8 @@ tx_pkt_history_add_actual(struct tx_pkt_history_st *h,
         return 0;
 
     lh_OSSL_ACKM_TX_PKT_insert(h->map, pkt);
+    if (lh_OSSL_ACKM_TX_PKT_error(h->map))
+        return 0;
 
     ossl_list_tx_history_insert_tail(&h->packets, pkt);
     return 1;