The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - net: lan743x: fix RX checksum use-after-free lan743x_rx_process_buffer() adds each non-first receive     buffer to the head skb's frag_list. On the last descriptor, lan743x_rx_trim_skb() linearizes the head and     frees the fragment skb metadata. The checksum-success path then writes ip_summed through the local skb     pointer, which still points to the final fragment. This causes a use-after-free write when a packet spans     more than one receive buffer. Set ip_summed on the surviving head skb instead. Multi-buffer receive can     occur after a live MTU increase because existing ring entries keep their old buffer size until they are     replenished. A KUnit test invoking lan743x_rx_process_buffer() with a two-buffer packet produced a one-     byte KASAN use-after-free write before this change. The same test passed after the change. The driver     object also builds with W=1. This was not tested on physical LAN743x hardware. (CVE-2026-98239)

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Linux Distros Unpatched Vulnerability : CVE-2026-98239

high Nessus Plugin ID 363334

Version 1.4