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CVE-2026-74299

Estado: RecibidaSin puntuar—

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

RDMA/core: Fix FRMR aging push to queue error flow

Aging pools with pinned handles requires moving handles from the active queue to a non-empty inactive queue that might fail on new page allocation, we are currently not handling the fault and leaking any mkey that fails the push.

Fix by Introducing push_queue_to_queue_locked() that fills the destination's partial tail page from the source and then splices the remaining source pages onto the destination, performing no allocation.

Replace the per-handle move loop in age_pinned_pool() and the open-coded splice in pool_aging_work() with calls to the helper.

Leer descripción completaMostrar menos

As the helper cannot fail under memory pressure, removing a class of GFP_ATOMIC allocations under the pool lock and simplifying the error flow.

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-2026-74299",
  "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": "020d189d16a62ed56115cce7e255459cf0eeb4e6",
              "lessThan": "edf133d28fc43f7f8b0da43a8d5b93fdf8073d35",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "020d189d16a62ed56115cce7e255459cf0eeb4e6",
              "lessThan": "c6936506ed556ce3ccad36ab999baf2764dd7d25",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/infiniband/core/frmr_pools.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": [
            "drivers/infiniband/core/frmr_pools.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:29.517",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/c6936506ed556ce3ccad36ab999baf2764dd7d25",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/edf133d28fc43f7f8b0da43a8d5b93fdf8073d35",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Fix FRMR aging push to queue error flow\n\nAging pools with pinned handles requires moving handles from the\nactive queue to a non-empty inactive queue that might fail on new page\nallocation, we are currently not handling the fault and leaking any mkey\nthat fails the push.\n\nFix by Introducing push_queue_to_queue_locked() that fills the\ndestination's partial tail page from the source and then splices the\nremaining source pages onto the destination, performing no allocation.\n\nReplace the per-handle move loop in age_pinned_pool() and the\nopen-coded splice in pool_aging_work() with calls to the helper.\nAs the helper cannot fail under memory pressure, removing a class of\nGFP_ATOMIC allocations under the pool lock and simplifying the error\nflow."
    }
  ],
  "lastModified": "2026-08-17T06:19:24.010",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}