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CVE-2026-72309

Estado: RecibidaSin puntuar—

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

tracing/remotes: Fix leak in trace_remote_alloc_buffer() error path

If page allocation fails in trace_remote_alloc_buffer(), desc->nr_cpus is not yet incremented for the current CPU. As a consequence, on error, half-allocated rb_desc will not be freed in trace_remote_free_buffer().

Increment desc->nr_cpus as soon as the first allocation for the current CPU has succeeded.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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).

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)

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{
  "id": "CVE-2026-72309",
  "cveTags": [],
  "metrics": {},
  "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": "96e43537af5461b26f50904c6055046ba65d742f",
              "lessThan": "81a7b7ddb07efdd8cf30eac6def18b9289b8de1e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "96e43537af5461b26f50904c6055046ba65d742f",
              "lessThan": "ec082d0b978b5fb4c11205ccce63587ac94c74e1",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "kernel/trace/trace_remote.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "7.1",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "kernel/trace/trace_remote.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:03.673",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/81a7b7ddb07efdd8cf30eac6def18b9289b8de1e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ec082d0b978b5fb4c11205ccce63587ac94c74e1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/remotes: Fix leak in trace_remote_alloc_buffer() error path\n\nIf page allocation fails in trace_remote_alloc_buffer(), desc->nr_cpus\nis not yet incremented for the current CPU. As a consequence, on error,\nhalf-allocated rb_desc will not be freed in trace_remote_free_buffer().\n\nIncrement desc->nr_cpus as soon as the first allocation for the current\nCPU has succeeded."
    }
  ],
  "lastModified": "2026-08-17T06:18:33.990",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}