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CVE-2026-68334

Estado: RecibidaSin puntuar—

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

rxrpc: fix io_thread race in rxrpc_wake_up_io_thread()

rxrpc_wake_up_io_thread() checks local->io_thread before waking it, but then reloads the pointer for wake_up_process().

local->io_thread is cleared with WRITE_ONCE() when the I/O thread exits, so the second load can see NULL even if the first load did not.

Take a READ_ONCE() snapshot and use it for both the NULL check and the wake_up_process() call, as rxrpc_encap_rcv() already does.

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)

Mostrar
{
  "id": "CVE-2026-68334",
  "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": "5800b1cf3fd8ccab752a101865be1e76dac33142",
              "lessThan": "c9165e199f56997f2f2deb5d3ec2dfab98dfa288",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5800b1cf3fd8ccab752a101865be1e76dac33142",
              "lessThan": "092b42cf3f6013eec43607ecbcad674723649514",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5800b1cf3fd8ccab752a101865be1e76dac33142",
              "lessThan": "745fb794c3e933c023af9dbb5876a5e16ad2dc71",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/rxrpc/ar-internal.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.16",
              "versionType": "semver"
            },
            {
              "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": [
            "net/rxrpc/ar-internal.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:23.750",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/092b42cf3f6013eec43607ecbcad674723649514",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/745fb794c3e933c023af9dbb5876a5e16ad2dc71",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c9165e199f56997f2f2deb5d3ec2dfab98dfa288",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: fix io_thread race in rxrpc_wake_up_io_thread()\n\nrxrpc_wake_up_io_thread() checks local->io_thread before waking it, but\nthen reloads the pointer for wake_up_process().\n\nlocal->io_thread is cleared with WRITE_ONCE() when the I/O thread exits, so\nthe second load can see NULL even if the first load did not.\n\nTake a READ_ONCE() snapshot and use it for both the NULL check and the\nwake_up_process() call, as rxrpc_encap_rcv() already does."
    }
  ],
  "lastModified": "2026-08-17T06:17:41.510",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}