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CVE-2023-54048

Estado: AplazadaAlta (7.8)—

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

RDMA/bnxt_re: Prevent handling any completions after qp destroy

HW may generate completions that indicates QP is destroyed. Driver should not be scheduling any more completion handlers for this QP, after the QP is destroyed. Since CQs are active during the QP destroy, driver may still schedule completion handlers. This can cause a race where the destroy_cq and poll_cq running simultaneously.

Snippet of kernel panic while doing bnxt_re driver load unload in loop. This indicates a poll after the CQ is freed.

To avoid this, complete all completion handlers before returning the destroy QP. If free_cq is called soon after destroy_qp, IB stack will cancel the CQ work before invoking the destroy_cq verb and this will prevent any race mentioned.

Detalles técnicos trazas, registros y código del informe original
[77786.481636] Call Trace:
[77786.481640]  <TASK>
[77786.481644]  bnxt_re_poll_cq+0x14a/0x620 [bnxt_re]
[77786.481658]  ? kvm_clock_read+0x14/0x30
[77786.481693]  __ib_process_cq+0x57/0x190 [ib_core]
[77786.481728]  ib_cq_poll_work+0x26/0x80 [ib_core]
[77786.481761]  process_one_work+0x1e5/0x3f0
[77786.481768]  worker_thread+0x50/0x3a0
[77786.481785]  ? __pfx_worker_thread+0x10/0x10
[77786.481790]  kthread+0xe2/0x110
[77786.481794]  ? __pfx_kthread+0x10/0x10
[77786.481797]  ret_from_fork+0x2c/0x50

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 local (AV:L) sin interacción del usuario que permite a usuario con privilegios (PR:L) causar denegación de servicio mediante race condition en controlador RDMA del kernel Linux.

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-2023-54048",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "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": "1ac5a404797523cedaf424a3aaa3cf8f9548dff8",
              "lessThan": "b79a0e71d6e8692e0b6da05f8aaa7d69191cf7e7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1ac5a404797523cedaf424a3aaa3cf8f9548dff8",
              "lessThan": "b8500538b8f5b2cd86b02754c8de83eaa7a2d6ba",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1ac5a404797523cedaf424a3aaa3cf8f9548dff8",
              "lessThan": "7faa6097694164380ed19600c7a7993d071270b9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1ac5a404797523cedaf424a3aaa3cf8f9548dff8",
              "lessThan": "b5bbc6551297447d3cca55cf907079e206e9cd82",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/infiniband/hw/bnxt_re/ib_verbs.c",
            "drivers/infiniband/hw/bnxt_re/qplib_fp.c",
            "drivers/infiniband/hw/bnxt_re/qplib_fp.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.124",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.43",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.4.8",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/infiniband/hw/bnxt_re/ib_verbs.c",
            "drivers/infiniband/hw/bnxt_re/qplib_fp.c",
            "drivers/infiniband/hw/bnxt_re/qplib_fp.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-24T13:16:06.457",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/7faa6097694164380ed19600c7a7993d071270b9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b5bbc6551297447d3cca55cf907079e206e9cd82",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b79a0e71d6e8692e0b6da05f8aaa7d69191cf7e7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b8500538b8f5b2cd86b02754c8de83eaa7a2d6ba",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Prevent handling any completions after qp destroy\n\nHW may generate completions that indicates QP is destroyed.\nDriver should not be scheduling any more completion handlers\nfor this QP, after the QP is destroyed. Since CQs are active\nduring the QP destroy, driver may still schedule completion\nhandlers. This can cause a race where the destroy_cq and poll_cq\nrunning simultaneously.\n\nSnippet of kernel panic while doing bnxt_re driver load unload in loop.\nThis indicates a poll after the CQ is freed. \n\n[77786.481636] Call Trace:\n[77786.481640]  <TASK>\n[77786.481644]  bnxt_re_poll_cq+0x14a/0x620 [bnxt_re]\n[77786.481658]  ? kvm_clock_read+0x14/0x30\n[77786.481693]  __ib_process_cq+0x57/0x190 [ib_core]\n[77786.481728]  ib_cq_poll_work+0x26/0x80 [ib_core]\n[77786.481761]  process_one_work+0x1e5/0x3f0\n[77786.481768]  worker_thread+0x50/0x3a0\n[77786.481785]  ? __pfx_worker_thread+0x10/0x10\n[77786.481790]  kthread+0xe2/0x110\n[77786.481794]  ? __pfx_kthread+0x10/0x10\n[77786.481797]  ret_from_fork+0x2c/0x50\n\nTo avoid this, complete all completion handlers before returning the\ndestroy QP. If free_cq is called soon after destroy_qp,  IB stack\nwill cancel the CQ work before invoking the destroy_cq verb and\nthis will prevent any race mentioned."
    }
  ],
  "lastModified": "2026-08-04T10:19:26.443",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}