CVE-2026-23166

Estado: AnalizadaMedia (5.5)—

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

ice: Fix NULL pointer dereference in ice_vsi_set_napi_queues

Add NULL pointer checks in ice_vsi_set_napi_queues() to prevent crashes during resume from suspend when rings[q_idx]->q_vector is NULL.

Tested adaptor: 60:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02) Subsystem: Intel Corporation Ethernet Network Adapter E810-XXV-2 [8086:4003]

SR-IOV state: both disabled and enabled can reproduce this issue.

kernel version: v6.18

Reproduce steps: Boot up and execute suspend like systemctl suspend or rtcwake.

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Log: <1>[ 231.443607] BUG: kernel NULL pointer dereference, address: 0000000000000040 <1>[ 231.444052] #PF: supervisor read access in kernel mode <1>[ 231.444484] #PF: error_code(0x0000) - not-present page <6>[ 231.444913] PGD 0 P4D 0 <4>[ 231.445342] Oops: Oops: 0000 [#1] SMP NOPTI <4>[ 231.446635] RIP: 0010:netif_queue_set_napi+0xa/0x170 <4>[ 231.447067] Code: 31 f6 31 ff c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 85 c9 74 0b <48> 83 79 30 00 0f 84 39 01 00 00 55 41 89 d1 49 89 f8 89 f2 48 89 <4>[ 231.447513] RSP: 0018:ffffcc780fc078c0 EFLAGS: 00010202 <4>[ 231.447961] RAX: ffff8b848ca30400 RBX: ffff8b848caf2028 RCX: 0000000000000010 <4>[ 231.448443] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8b848dbd4000 <4>[ 231.448896] RBP: ffffcc780fc078e8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 231.449345] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 <4>[ 231.449817] R13: ffff8b848dbd4000 R14: ffff8b84833390c8 R15: 0000000000000000 <4>[ 231.450265] FS: 00007c7b29e9d740(0000) GS:ffff8b8c068e2000(0000) knlGS:0000000000000000 <4>[ 231.450715] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 231.451179] CR2: 0000000000000040 CR3: 000000030626f004 CR4: 0000000000f72ef0 <4>[ 231.451629] PKRU: 55555554 <4>[ 231.452076] Call Trace: <4>[ 231.452549] <TASK> <4>[ 231.452996] ? ice_vsi_set_napi_queues+0x4d/0x110 [ice] <4>[ 231.453482] ice_resume+0xfd/0x220 [ice] <4>[ 231.453977] ? __pfx_pci_pm_resume+0x10/0x10 <4>[ 231.454425] pci_pm_resume+0x8c/0x140 <4>[ 231.454872] ? __pfx_pci_pm_resume+0x10/0x10 <4>[ 231.455347] dpm_run_callback+0x5f/0x160 <4>[ 231.455796] ? dpm_wait_for_superior+0x107/0x170 <4>[ 231.456244] device_resume+0x177/0x270 <4>[ 231.456708] dpm_resume+0x209/0x2f0 <4>[ 231.457151] dpm_resume_end+0x15/0x30 <4>[ 231.457596] suspend_devices_and_enter+0x1da/0x2b0 <4>[ 231.458054] enter_state+0x10e/0x570

Add defensive checks for both the ring pointer and its q_vector before dereferencing, allowing the system to resume successfully even when q_vectors are unmapped.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.12%
Percentil entre todas las CVEs puntuadas: 2
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-476

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-23166",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2a5dc090b92cfa5270e20056074241c6db5c9cdd",
              "lessThan": "d75c7b7c3c2b8e3569043099e6bdcefc983856c5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a5dc090b92cfa5270e20056074241c6db5c9cdd",
              "lessThan": "36126ddbe924727add05a594dedf230d3b575e4d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a5dc090b92cfa5270e20056074241c6db5c9cdd",
              "lessThan": "9bb30be4d89ff9a8d7ab1aa0eb2edaca83431f85",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2285c2faef19ee08a6bd6754f4c3ec07dceb2889",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.10.10",
              "lessThan": "6.11",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_lib.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.69",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.9",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_lib.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-02-14T16:15:56.797",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/36126ddbe924727add05a594dedf230d3b575e4d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9bb30be4d89ff9a8d7ab1aa0eb2edaca83431f85",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d75c7b7c3c2b8e3569043099e6bdcefc983856c5",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix NULL pointer dereference in ice_vsi_set_napi_queues\n\nAdd NULL pointer checks in ice_vsi_set_napi_queues() to prevent crashes\nduring resume from suspend when rings[q_idx]->q_vector is NULL.\n\nTested adaptor:\n60:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02)\n        Subsystem: Intel Corporation Ethernet Network Adapter E810-XXV-2 [8086:4003]\n\nSR-IOV state: both disabled and enabled can reproduce this issue.\n\nkernel version: v6.18\n\nReproduce steps:\nBoot up and execute suspend like systemctl suspend or rtcwake.\n\nLog:\n<1>[  231.443607] BUG: kernel NULL pointer dereference, address: 0000000000000040\n<1>[  231.444052] #PF: supervisor read access in kernel mode\n<1>[  231.444484] #PF: error_code(0x0000) - not-present page\n<6>[  231.444913] PGD 0 P4D 0\n<4>[  231.445342] Oops: Oops: 0000 [#1] SMP NOPTI\n<4>[  231.446635] RIP: 0010:netif_queue_set_napi+0xa/0x170\n<4>[  231.447067] Code: 31 f6 31 ff c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 85 c9 74 0b <48> 83 79 30 00 0f 84 39 01 00 00 55 41 89 d1 49 89 f8 89 f2 48 89\n<4>[  231.447513] RSP: 0018:ffffcc780fc078c0 EFLAGS: 00010202\n<4>[  231.447961] RAX: ffff8b848ca30400 RBX: ffff8b848caf2028 RCX: 0000000000000010\n<4>[  231.448443] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8b848dbd4000\n<4>[  231.448896] RBP: ffffcc780fc078e8 R08: 0000000000000000 R09: 0000000000000000\n<4>[  231.449345] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001\n<4>[  231.449817] R13: ffff8b848dbd4000 R14: ffff8b84833390c8 R15: 0000000000000000\n<4>[  231.450265] FS:  00007c7b29e9d740(0000) GS:ffff8b8c068e2000(0000) knlGS:0000000000000000\n<4>[  231.450715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4>[  231.451179] CR2: 0000000000000040 CR3: 000000030626f004 CR4: 0000000000f72ef0\n<4>[  231.451629] PKRU: 55555554\n<4>[  231.452076] Call Trace:\n<4>[  231.452549]  <TASK>\n<4>[  231.452996]  ? ice_vsi_set_napi_queues+0x4d/0x110 [ice]\n<4>[  231.453482]  ice_resume+0xfd/0x220 [ice]\n<4>[  231.453977]  ? __pfx_pci_pm_resume+0x10/0x10\n<4>[  231.454425]  pci_pm_resume+0x8c/0x140\n<4>[  231.454872]  ? __pfx_pci_pm_resume+0x10/0x10\n<4>[  231.455347]  dpm_run_callback+0x5f/0x160\n<4>[  231.455796]  ? dpm_wait_for_superior+0x107/0x170\n<4>[  231.456244]  device_resume+0x177/0x270\n<4>[  231.456708]  dpm_resume+0x209/0x2f0\n<4>[  231.457151]  dpm_resume_end+0x15/0x30\n<4>[  231.457596]  suspend_devices_and_enter+0x1da/0x2b0\n<4>[  231.458054]  enter_state+0x10e/0x570\n\nAdd defensive checks for both the ring pointer and its q_vector\nbefore dereferencing, allowing the system to resume successfully even when\nq_vectors are unmapped."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nice: Corrige la desreferencia de puntero NULL en ice_vsi_set_napi_queues\n\nAñade comprobaciones de puntero NULL en ice_vsi_set_napi_queues() para evitar fallos durante la reanudación desde la suspensión cuando rings[q_idx]-&gt;q_vector es NULL.\n\nAdaptador probado:\n60:00.0 Controlador Ethernet [0200]: Intel Corporation Ethernet Controller E810-XXV para SFP [8086:159b] (rev 02)\n        Subsistema: Intel Corporation Ethernet Network Adapter E810-XXV-2 [8086:4003]\n\nEstado de SR-IOV: tanto deshabilitado como habilitado pueden reproducir este problema.\n\nversión del kernel: v6.18\n\nPasos para reproducir:\nArrancar y ejecutar la suspensión como systemctl suspend o rtcwake.\n\nRegistro:\n&lt;1&gt;[  231.443607] BUG: desreferencia de puntero NULL del kernel, dirección: 0000000000000040\n&lt;1&gt;[  231.444052] #PF: acceso de lectura de supervisor en modo kernel\n&lt;1&gt;[  231.444484] #PF: código_de_error(0x0000) - página no presente\n&lt;6&gt;[  231.444913] PGD 0 P4D 0\n&lt;4&gt;[  231.445342] Oops: Oops: 0000 [#1] SMP NOPTI\n&lt;4&gt;[  231.446635] RIP: 0010:netif_queue_set_napi+0xa/0x170\n&lt;4&gt;[  231.447067] Code: 31 f6 31 ff c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 85 c9 74 0b &lt;48&gt; 83 79 30 00 0f 84 39 01 00 00 55 41 89 d1 49 89 f8 89 f2 48 89\n&lt;4&gt;[  231.447513] RSP: 0018:ffffcc780fc078c0 EFLAGS: 00010202\n&lt;4&gt;[  231.447961] RAX: ffff8b848ca30400 RBX: ffff8b848caf2028 RCX: 0000000000000010\n&lt;4&gt;[  231.448443] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8b848dbd4000\n&lt;4&gt;[  231.448896] RBP: ffffcc780fc078e8 R08: 0000000000000000 R09: 0000000000000000\n&lt;4&gt;[  231.449345] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001\n&lt;4&gt;[  231.449817] R13: ffff8b848dbd4000 R14: ffff8b84833390c8 R15: 0000000000000000\n&lt;4&gt;[  231.450265] FS:  00007c7b29e9d740(0000) GS:ffff8b8c068e2000(0000) knlGS:0000000000000000\n&lt;4&gt;[  231.450715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n&lt;4&gt;[  231.451179] CR2: 0000000000000040 CR3: 000000030626f004 CR4: 0000000000f72ef0\n&lt;4&gt;[  231.451629] PKRU: 55555554\n&lt;4&gt;[  231.452076] Traza de llamada:\n&lt;4&gt;[  231.452549]  \n&lt;4&gt;[  231.452996]  ? ice_vsi_set_napi_queues+0x4d/0x110 [ice]\n&lt;4&gt;[  231.453482]  ice_resume+0xfd/0x220 [ice]\n&lt;4&gt;[  231.453977]  ? __pfx_pci_pm_resume+0x10/0x10\n&lt;4&gt;[  231.454425]  pci_pm_resume+0x8c/0x140\n&lt;4&gt;[  231.454872]  ? __pfx_pci_pm_resume+0x10/0x10\n&lt;4&gt;[  231.455347]  dpm_run_callback+0x5f/0x160\n&lt;4&gt;[  231.455796]  ? dpm_wait_for_superior+0x107/0x170\n&lt;4&gt;[  231.456244]  device_resume+0x177/0x270\n&lt;4&gt;[  231.456708]  dpm_resume+0x209/0x2f0\n&lt;4&gt;[  231.457151]  dpm_resume_end+0x15/0x30\n&lt;4&gt;[  231.457596]  suspend_devices_and_enter+0x1da/0x2b0\n&lt;4&gt;[  231.458054]  enter_state+0x10e/0x570\n\nAñade comprobaciones defensivas tanto para el puntero del anillo como para su q_vector antes de desreferenciar, permitiendo que el sistema se reanude con éxito incluso cuando los q_vectors no están mapeados."
    }
  ],
  "lastModified": "2026-06-17T10:21:01.360",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}