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CVE-2026-68128

Estado: RecibidaAlta (8.8)—

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

ice: reject out-of-range ptype in ice_parser_profile_init

set_bit(rslt->ptype, prof->ptypes) operates on a DECLARE_BITMAP of ICE_FLOW_PTYPE_MAX (1024) bits. Nothing prevents a malicious VF from providing ptype >= 1024 through VIRTCHNL, resulting in a write past the end of the bitmap and a kernel page fault.

Reproduced with a custom kernel module injecting a crafted VIRTCHNL_OP_ADD_RSS_CFG on E810-C QSFP (8086:1592), FW 4.91 0x800214af 1.3909.0, ICE COMMS DDP 1.3.53.0, kernel 7.1.0-rc1.

Bail out early with -EINVAL when ptype is out of range.

Detalles técnicos trazas, registros y código del informe original
crash_parser: ice_parser_profile_init @ ffffffffc0d61b60
crash_parser: setting ptype=0xffff (max valid=1023)
crash_parser: calling ice_parser_profile_init -- expect OOB crash!
BUG: kernel NULL pointer dereference, address: 0000000000000000
Oops: Oops: 0002 [#1] SMP NOPTI
CPU: 56 UID: 0 PID: 165011 Comm: insmod Kdump: loaded Tainted: G S U OE 7.1.0-rc1 #1
Hardware name: Intel Corporation S2600BPB/S2600BPB
RIP: 0010:ice_parser_profile_init+0x2d/0x1d0 [ice]
Call Trace:
 <TASK>
 ? __pfx_ice_parser_profile_init+0x10/0x10 [ice]
 crash_init+0x127/0xff0 [crash_parser]
 do_one_initcall+0x45/0x310
 do_init_module+0x64/0x270
 init_module_from_file+0xcc/0xf0
 idempotent_init_module+0x17b/0x280
 __x64_sys_finit_module+0x6e/0xe0

CVSS

Probabilidad de explotación (EPSS)

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de escalada local (AV:L, PR:L) en kernel Linux que permite a una VF maliciosa escribir fuera de límites en bitmap, causando DoS o posible escalada de privilegios (scope cambiado: C).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-68128",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      }
    ]
  },
  "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": "e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef",
              "lessThan": "fe2f8d5a77adea38e889fe3d6cde1b76d4a635bf",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef",
              "lessThan": "5e496f2b615cec4b45537cfb5b54f36a51dc8753",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef",
              "lessThan": "33cc15aaf2491166dddc018b24b3b7db53ec01b2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e312b3a1e2092f612914dbc4fa5d96b4d8ff94ef",
              "lessThan": "59abb87159c53605c063f6e2ceb215b5eba43ee6",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_parser.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_parser.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:19:58.083",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/33cc15aaf2491166dddc018b24b3b7db53ec01b2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/59abb87159c53605c063f6e2ceb215b5eba43ee6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5e496f2b615cec4b45537cfb5b54f36a51dc8753",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fe2f8d5a77adea38e889fe3d6cde1b76d4a635bf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: reject out-of-range ptype in ice_parser_profile_init\n\nset_bit(rslt->ptype, prof->ptypes) operates on a DECLARE_BITMAP of\nICE_FLOW_PTYPE_MAX (1024) bits. Nothing prevents a malicious VF from\nproviding ptype >= 1024 through VIRTCHNL, resulting in a write past\nthe end of the bitmap and a kernel page fault.\n\nReproduced with a custom kernel module injecting a crafted\nVIRTCHNL_OP_ADD_RSS_CFG on E810-C QSFP (8086:1592),\nFW 4.91 0x800214af 1.3909.0, ICE COMMS DDP 1.3.53.0,\nkernel 7.1.0-rc1.\n\ncrash_parser: ice_parser_profile_init @ ffffffffc0d61b60\ncrash_parser: setting ptype=0xffff (max valid=1023)\ncrash_parser: calling ice_parser_profile_init -- expect OOB crash!\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nOops: Oops: 0002 [#1] SMP NOPTI\nCPU: 56 UID: 0 PID: 165011 Comm: insmod Kdump: loaded Tainted: G S U OE 7.1.0-rc1 #1\nHardware name: Intel Corporation S2600BPB/S2600BPB\nRIP: 0010:ice_parser_profile_init+0x2d/0x1d0 [ice]\nCall Trace:\n <TASK>\n ? __pfx_ice_parser_profile_init+0x10/0x10 [ice]\n crash_init+0x127/0xff0 [crash_parser]\n do_one_initcall+0x45/0x310\n do_init_module+0x64/0x270\n init_module_from_file+0xcc/0xf0\n idempotent_init_module+0x17b/0x280\n __x64_sys_finit_module+0x6e/0xe0\n\nBail out early with -EINVAL when ptype is out of range."
    }
  ],
  "lastModified": "2026-08-17T05:18:12.527",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}