CentOS Linux 7 主機已安裝的套件會受到 TuxCare CENTOS7：CLSA-2026：1787291758 公告中提及的多個弱點影響。

  - 當已知來源暫存器為 0 時，Linux 核心中的 bpf 驗證器未正確處理 mod32 目的地暫存器截斷。能夠載入 bpf 程式的本機攻擊者可利用此問題，取得核心記憶體中的超出邊界讀取權限，進而導致資訊洩漏 (核心記憶體)，並且可能造成超出邊界寫入，進而導致程式碼執行。此問題已在上游核心的提交 9b00f1b78809 （bpf： 修正 mod32 dst reg wrt zero） 的截斷處理） 和 Linux 穩定核心 5.11.2、 5.10.195.4.101和 中得到解決。（CVE-2021-3444）

  - 已解決 Linux 核心中的下列弱點：sctp: don't free the ASCONF's own transport in DEL-IP processing sctp_process_asconf() caches the transport the ASCONF chunk is processed against in asconf->transport (== chunk->transport, set once in sctp_rcv()). For an ASCONF located through its Address Parameter by __sctp_rcv_asconf_lookup(), that cached transport corresponds to the Address Parameter, which need not be the packet's source address. sctp_process_asconf_param() rejects a DEL-IP for the packet source address (ADDIP D8, SCTP_ERROR_DEL_SRC_IP), but nothing protects asconf->transport. A single ASCONF can therefore carry, in order: [Address Parameter L] [DEL-IP L] [DEL-IP 0.0.0.0] where L differs from the source. The DEL-IP for L passes the D8 check and calls sctp_assoc_rm_peer() on the transport that asconf->transport still points at, freeing it (RCU-deferred). The following wildcard DEL-IP then reuses the now-dangling asconf->transport in sctp_assoc_set_primary() and sctp_assoc_del_nonprimary_peers(): set_primary() dereferences the freed transport (->ipaddr, ->state) and plants the dangling pointer into asoc->peer.primary_path / active_path, and del_nonprimary_peers(), keeping only the pointer that is no longer on the list, removes every real transport, leaving the association with a transport_count of 0 and primary_path/active_path pointing at freed memory. Reject a DEL-IP that targets the transport the ASCONF is being processed against, mirroring the existing source-address guard, so the wildcard branch can never reuse a freed transport. (CVE-2026-64564)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

偵測

CentOS Linux 7 [TuxCare] 安全性更新：bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / etc 多個弱點（CENTOS7：CLSA-2026：1787291758）

high Nessus Plugin ID 360159

版本 1.2

偵測

CentOS Linux 7 [TuxCare] 安全性更新：bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / etc 多個弱點 （CENTOS7：CLSA-2026：1787291758）

high Nessus Plugin ID 360159

版本 1.2

CentOS Linux 7 [TuxCare] 安全性更新：bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / etc 多個弱點（CENTOS7：CLSA-2026：1787291758）