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CVE-2024-41040 is a use-after-free vulnerability in the Linux kernel traffic-control connection-tracking action (act_ct). When conntrack confirmation resolves a connection-tracking clash, the referenced conntrack object can be dropped and freed. The packet-processing path nevertheless passes the stale connection-tracking pointer to tcf_ct_flow_table_process_conn() for further processing. The fix reacquires the conntrack reference from the packet after conntrack confirmation, preventing subsequent use of a freed object.
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A Linux kernel net/sched vulnerability involving a use-after-free when resolving a clash.
Use-after-free vulnerability in Linux kernel network traffic scheduling while resolving a classifier clash.
A Linux kernel use-after-free vulnerability in net/sched's conntrack (act_ct) processing. When conntrack clash resolution drops a connection-tracking object, the stale object can still be passed to tcf_ct_flow_table_process_conn. The fix retrieves the conntrack object from the skb again after conntrack confirmation.
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Cross-references every affected SKU, including bundled OEM variants.
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