Beveiligingsadvies

CVE-2025-40133

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2025-11-12 10:23:22

Laatst bijgewerkt 2026-08-05 12:07:59

Toegewezen door Linux

CVSS-score 8.1

Status PUBLISHED

Beschrijving

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable(). mptcp_active_enable() is called from subflow_finish_connect(), which is icsk->icsk_af_ops->sk_rx_dst_set() and it's not always under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu().

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