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CVE-2024-26669 is a memory leak in the Linux kernel traffic-control flower classifier's chain-template offload lifecycle. When a qdisc is deleted, the traffic-control stack unbinds the driver's flow-offload callback and replays destruction of ordinary filters, but historically did not replay destruction of chain templates. Consequently, an offload-capable driver that allocated resources for a flower chain template did not receive the template-destruction notification and retained those allocations. The fix adds template reoffload handling and emits template create or destroy notifications as flow-offload callbacks are bound or unbound.
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Linux kernel traffic-control flower classifier chain-template offload flaw.
A Linux kernel net/sched flower subsystem vulnerability involving chain-template offload handling. The referenced assessment characterizes its estimated impact as low.
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Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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