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

  - nexthop: Forbid FDB status change while nexthop is in a group The kernel forbids the creation of non-FDB     nexthop groups with FDB nexthops: # ip nexthop add id 1 via 192.0.2.1 fdb # ip nexthop add id 2 group 1     Error: Non FDB nexthop group cannot have fdb nexthops. And vice versa: # ip nexthop add id 3 via 192.0.2.2     dev dummy1 # ip nexthop add id 4 group 3 fdb Error: FDB nexthop group can only have fdb nexthops. However,     as long as no routes are pointing to a non-FDB nexthop group, the kernel allows changing the type of a     nexthop from FDB to non-FDB and vice versa: # ip nexthop add id 5 via 192.0.2.2 dev dummy1 # ip nexthop     add id 6 group 5 # ip nexthop replace id 5 via 192.0.2.2 fdb # echo $? 0 This configuration is invalid and     can result in a NPD [1] since FDB nexthops are not associated with a nexthop device: # ip route add     198.51.100.1/32 nhid 6 # ping 198.51.100.1 Fix by preventing nexthop FDB status change while the nexthop     is in a group: # ip nexthop add id 7 via 192.0.2.2 dev dummy1 # ip nexthop add id 8 group 7 # ip nexthop     replace id 7 via 192.0.2.2 fdb Error: Cannot change nexthop FDB status while in a group. [1] BUG: kernel     NULL pointer dereference, address: 00000000000003c0 [...] Oops: Oops: 0000 [#1] SMP CPU: 6 UID: 0 PID: 367     Comm: ping Not tainted 6.17.0-rc6-virtme-gb65678cacc03 #1 PREEMPT(voluntary) Hardware name: QEMU Standard     PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc41 04/01/2014 RIP: 0010:fib_lookup_good_nhc+0x1e/0x80 [...] Call     Trace: <TASK> fib_table_lookup+0x541/0x650 ip_route_output_key_hash_rcu+0x2ea/0x970     ip_route_output_key_hash+0x55/0x80 __ip4_datagram_connect+0x250/0x330 udp_connect+0x2b/0x60
    __sys_connect+0x9c/0xd0 __x64_sys_connect+0x18/0x20 do_syscall_64+0xa4/0x2a0     entry_SYSCALL_64_after_hwframe+0x4b/0x53 (CVE-2025-39980)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1223 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    fs: relax assertions on failure to encode file handles (CVE-2024-57924)

    In the Linux kernel, the following vulnerability has been resolved:

    net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. (CVE-2025-23143)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: adjust subpage bit start based on sectorsize (CVE-2025-37931)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Fix oob access in cgroup local storage (CVE-2025-38502)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: prevent NULL pointer dereference in UTF16 conversion (CVE-2025-39838)

    In the Linux kernel, the following vulnerability has been resolved:

    mm: slub: avoid wake up kswapd in set_track_prepare (CVE-2025-39843)

    In the Linux kernel, the following vulnerability has been resolved:

    mm: move page table sync declarations to linux/pgtable.h (CVE-2025-39844)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() (CVE-2025-39845)

    In the Linux kernel, the following vulnerability has been resolved:

    fs: writeback: fix use-after-free in __mark_inode_dirty() (CVE-2025-39866)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/damon/sysfs: fix use-after-free in state_show() (CVE-2025-39877)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: fix invalid accesses to ceph_connection_v1_info (CVE-2025-39880)

    In the Linux kernel, the following vulnerability has been resolved:

    kernfs: Fix UAF in polling when open file is released (CVE-2025-39881)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory (CVE-2025-39883)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: br_netfilter: do not check confirmed bit in br_nf_local_in() after confirm (CVE-2025-39894)

    In the Linux kernel, the following vulnerability has been resolved:

    e1000e: fix heap overflow in e1000_set_eeprom (CVE-2025-39898)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/slub: avoid accessing metadata when pointer is invalid in object_err() (CVE-2025-39902)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters() (CVE-2025-39909)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. (CVE-2025-39913)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Silence warning when chunk allocation fails in trace_pid_write (CVE-2025-39914)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters() (CVE-2025-39916)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: af_alg - Set merge to zero early in af_alg_sendmsg (CVE-2025-39931)

    In the Linux kernel, the following vulnerability has been resolved:

    tls: make sure to abort the stream if headers are bogus (CVE-2025-39946)

    In the Linux kernel, the following vulnerability has been resolved:

    cgroup: split cgroup_destroy_wq into 3 workqueues (CVE-2025-39953)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). (CVE-2025-39955)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964)

    In the Linux kernel, the following vulnerability has been resolved:

    fbcon: fix integer overflow in fbcon_do_set_font (CVE-2025-39967)

    In the Linux kernel, the following vulnerability has been resolved:

    futex: Prevent use-after-free during requeue-PI (CVE-2025-39977)

    In the Linux kernel, the following vulnerability has been resolved:

    nexthop: Forbid FDB status change while nexthop is in a group (CVE-2025-39980)

    In the Linux kernel, the following vulnerability has been resolved:x86/vmscape: Add conditional IBPB     mitigation

    VMSCAPE is a vulnerability that exploits insufficient branch predictor isolation between a guest and a     userspace hypervisor (like QEMU). Existing mitigations already protect kernel/KVM from a malicious guest.
    Userspace can additionally be protected by flushing the branch predictors after a VMexit.

    Since it is the userspace that consumes the poisoned branch predictors, conditionally issue an IBPB after     a VMexit and before returning to userspace. Workloads that frequently switch between hypervisor and     userspace will incur the most overhead from the new IBPB.

    This new IBPB is not integrated with the existing IBPB sites. For instance, a task can use the existing     speculation control prctl() to get an IBPB at context switch time. With this implementation, the IBPB is     doubled up: one at context switch and another before running userspace. The intent is to integrate and     optimize these cases post-embargo.[ dhansen: elaborate on suboptimal IBPB solution ] (CVE-2025-40300)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
271537	Linux Distros Unpatched Vulnerability : CVE-2025-39980	Nessus	Misc.	10/27/2025	10/27/2025	critical
270560	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1223)	Nessus	Amazon Linux Local Security Checks	10/15/2025	11/4/2025	medium

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