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

  - bpf, sockmap: Fix self-redirect copied_seq double-counting When a BPF stream_verdict program redirects an     skb back to the same socket (self-redirect with BPF_F_INGRESS), sk_psock_verdict_apply() calls     tcp_eat_skb() which advances tcp_sk->copied_seq. However, the skb is then delivered to the socket's psock     ingress queue and later read by tcp_bpf_recvmsg_parser(), which also advances copied_seq via the     copied_from_self accounting path. This double-counting causes copied_seq to advance by 2x the actual data     length, triggering: TCP recvmsg seq # bug 2: copied BF2E806, seq BF2E7FD, \ rcvnxt BF2E806, fl 0 WARNING:
    net/ipv4/tcp.c:2745 at tcp_recvmsg_locked+0x72b/0x2640 Call Trace: tcp_recvmsg+0x10a/0x500     sock_recvmsg+0x168/0x1d0 __sys_recvfrom+0x19a/0x2a0 __x64_sys_recvfrom+0xe4/0x1f0 do_syscall_64+0xf7/0x530     entry_SYSCALL_64_after_hwframe+0x77/0x7f cleanup rbuf bug: copied BF2E806 seq BF2E806 rcvnxt BF2E806     WARNING: net/ipv4/tcp.c:1609 at tcp_cleanup_rbuf+0xf2/0x1c0 Call Trace: tcp_recvmsg_locked+0x8d1/0x2640     tcp_recvmsg+0x10a/0x500 sock_recvmsg+0x168/0x1d0 __sys_recvfrom+0x19a/0x2a0 __x64_sys_recvfrom+0xe4/0x1f0     do_syscall_64+0xf7/0x530 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fix this by converting self-redirect     verdict to __SK_PASS at the beginning of sk_psock_verdict_apply(). This bypasses the __SK_REDIRECT case     entirely (which calls sk_psock_eat_skb), letting the __SK_PASS path queue the skb to the psock ingress     queue. The data is then read via tcp_bpf_recvmsg_parser(), which advances copied_seq exactly once through     copied_from_self. Cross-socket redirects continue through __SK_REDIRECT with sk_psock_eat_skb() unchanged.
    (CVE-2026-98925)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
372301	Linux Distros Unpatched Vulnerability : CVE-2026-98925	Nessus	Misc.	10/27/2026	10/28/2026	medium
371850	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3251)	Nessus	Amazon Linux Local Security Checks	10/25/2026	10/27/2026	critical

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