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

  - mm: swap_cgroup: fix NULL deref in lookup_swap_cgroup_id on swapless host lookup_swap_cgroup_id() passes     swap_cgroup_ctrl[type].map to __swap_cgroup_id_lookup() without checking that the type was ever registered     via swap_cgroup_swapon(). On a swapless host every ctrl->map is NULL, so __swap_cgroup_id_lookup()     dereferences NULL + a scaled swp_offset(). Since commit bea67dcc5eea (mm: attempt to batch free swap     entries for zap_pte_range()), zap_pte_range() -> swap_pte_batch() calls lookup_swap_cgroup_id() on any     non-present, non-none PTE that decodes as a real swap entry, without first validating it against     swap_info[]. A single PTE corrupted into a type-0 swap entry takes the host down at process exit. We hit     this in production on a swapless 6.12.58 host: ~1s of get_swap_device: Bad swap file entry 3f800204222bb     (do_swap_page() being correctly defensive about the same entry) followed by BUG: unable to handle page     fault for address: 000003f800204220 RIP: 0010:lookup_swap_cgroup_id+0x2b/0x60 Call Trace:
    swap_pte_batch+0xbf/0x230 zap_pte_range+0x4c8/0x780 unmap_page_range+0x190/0x3e0 exit_mmap+0xd9/0x3c0     do_exit+0x20c/0x4b0 syzbot has reported the identical stack. The source of the PTE corruption is a     separate bug; this change makes the teardown path as robust as the fault path already is. Every other     caller of lookup_swap_cgroup_id() is downstream of a get_swap_device() that has already validated the     entry, so the new branch is cold. (CVE-2026-64416)

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

Detections

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Linux Distros Unpatched Vulnerability : CVE-2026-64416

medium Nessus Plugin ID 329991

Version 1.8

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.8 Aug 14, 2026, 5:17 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202608141717
Version 1.7 Aug 7, 2026, 9:55 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202608072155
Version 1.6 Aug 1, 2026, 2:26 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202608010226
Version 1.5 Jul 30, 2026, 11:45 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607301145
Version 1.4 Jul 29, 2026, 9:32 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607292132
Version 1.3 Jul 29, 2026, 12:29 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607290029
Version 1.2 Jul 28, 2026, 3:13 AM CVSS metrics ("CVSSv2 score" set to 6.6) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C") CVSS metrics ("CVSSv3 score" set to 5.5) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H") CVSSv2 severity (based on CVE-2026-64416, severity decreased from "High" to "Medium") CVSSv3 severity (based on None, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Plugin Feed: 202607280313
Version 1.1 Jul 26, 2026, 12:11 AM New Plugin Feed: 202607260011