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 panic when calling skb_linearize The panic can be reproduced by executing the command:
    ./bench sockmap -c 2 -p 1 -a --rx-verdict-ingress --rx-strp 100000 Then a kernel panic was captured: ''' [     657.460555] kernel BUG at net/core/skbuff.c:2178! [ 657.462680] Tainted: [W]=WARN [ 657.463287] Workqueue:
    events sk_psock_backlog ... [ 657.469610] <TASK> [ 657.469738] ? die+0x36/0x90 [ 657.469916] ?     do_trap+0x1d0/0x270 [ 657.470118] ? pskb_expand_head+0x612/0xf40 [ 657.470376] ?     pskb_expand_head+0x612/0xf40 [ 657.470620] ? do_error_trap+0xa3/0x170 [ 657.470846] ?     pskb_expand_head+0x612/0xf40 [ 657.471092] ? handle_invalid_op+0x2c/0x40 [ 657.471335] ?     pskb_expand_head+0x612/0xf40 [ 657.471579] ? exc_invalid_op+0x2d/0x40 [ 657.471805] ?     asm_exc_invalid_op+0x1a/0x20 [ 657.472052] ? pskb_expand_head+0xd1/0xf40 [ 657.472292] ?     pskb_expand_head+0x612/0xf40 [ 657.472540] ? lock_acquire+0x18f/0x4e0 [ 657.472766] ?     find_held_lock+0x2d/0x110 [ 657.472999] ? __pfx_pskb_expand_head+0x10/0x10 [ 657.473263] ?
    __kmalloc_cache_noprof+0x5b/0x470 [ 657.473537] ? __pfx___lock_release.isra.0+0x10/0x10 [ 657.473826]
    __pskb_pull_tail+0xfd/0x1d20 [ 657.474062] ? __kasan_slab_alloc+0x4e/0x90 [ 657.474707]     sk_psock_skb_ingress_enqueue+0x3bf/0x510 [ 657.475392] ? __kasan_kmalloc+0xaa/0xb0 [ 657.476010]     sk_psock_backlog+0x5cf/0xd70 [ 657.476637] process_one_work+0x858/0x1a20 ''' The panic originates from the     assertion BUG_ON(skb_shared(skb)) in skb_linearize(). A previous commit(see Fixes tag) introduced     skb_get() to avoid race conditions between skb operations in the backlog and skb release in the recvmsg     path. However, this caused the panic to always occur when skb_linearize is executed. The --rx-strp     100000 parameter forces the RX path to use the strparser module which aggregates data until it reaches     100KB before calling sockmap logic. The 100KB payload exceeds MAX_MSG_FRAGS, triggering skb_linearize. To     fix this issue, just move skb_get into sk_psock_skb_ingress_enqueue. ''' sk_psock_backlog:
    sk_psock_handle_skb skb_get(skb) <== we move it into 'sk_psock_skb_ingress_enqueue'     sk_psock_skb_ingress____________  | |  sk_psock_skb_ingress_self | sk_psock_skb_ingress_enqueue     sk_psock_verdict_apply_________________ skb_linearize ''' Note that for verdict_apply path, the skb_get     operation is unnecessary so we add 'take_ref' param to control it's behavior. (CVE-2025-38165)

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-2025-38165

medium Nessus Plugin ID 249993

Version 1.14

Version 1.13

Version 1.11

Version 1.10

Version 1.9

Version 1.8

Version 1.7

Version 1.3

Version 1.2

Version 1.14 Jan 10, 2026, 7:58 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601101958
Version 1.13 Dec 17, 2025, 4:56 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512171656
Version 1.11 Dec 15, 2025, 9:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512152139
Version 1.10 Dec 8, 2025, 6:20 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512081820
Version 1.9 Dec 5, 2025, 1:34 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512051334
Version 1.8 Dec 4, 2025, 7:43 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512041943
Version 1.7 Nov 26, 2025, 1:15 PM CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:U/RC:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202511261315
Version 1.3 Sep 4, 2025, 5:30 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202509041730
Version 1.2 Aug 31, 2025, 7:32 PM 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") CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202508311932