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CVE-2026-72037

Estado: RecibidaSin puntuar—

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

net: lan743x: Initialize eth_syslock spinlock before use

lan743x_hardware_init() calls pci11x1x_strap_get_status() during the PCI11x1x probe sequence. That helper acquires the Ethernet subsystem hardware lock via lan743x_hs_syslock_acquire(), which relies on adapter->eth_syslock_spinlock to serialize access.

The spinlock is currently initialized only after the strap status is read. With CONFIG_DEBUG_SPINLOCK enabled, taking the zeroed initialized spinlock can trip the spinlock debug check.

Fix by initializing adapter->eth_syslock_spinlock before reading the strap status so the probe path never attempts to lock an uninitialized spinlock.

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-2026-72037",
  "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": "46b777ad9a8c269113634cee6a380bc4e53f3964",
              "lessThan": "dfaefd9a7808736fcd2ed0de108f55c4badc15cc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "46b777ad9a8c269113634cee6a380bc4e53f3964",
              "lessThan": "6523daa6852b1bfef32ec7a105b0217e8a115687",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "46b777ad9a8c269113634cee6a380bc4e53f3964",
              "lessThan": "b6a93a42e0e61f0ba0005a942ee3bffb16c0574e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "46b777ad9a8c269113634cee6a380bc4e53f3964",
              "lessThan": "99a6f37b113c46815deb160c5012073563679ef4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "46b777ad9a8c269113634cee6a380bc4e53f3964",
              "lessThan": "b99e890e6b32ffa11c145a16fefcf2c7137a9578",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "46b777ad9a8c269113634cee6a380bc4e53f3964",
              "lessThan": "39139b1c1c2b614096519b526112c726adb12ff0",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/microchip/lan743x_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/microchip/lan743x_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:12.740",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/39139b1c1c2b614096519b526112c726adb12ff0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6523daa6852b1bfef32ec7a105b0217e8a115687",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/99a6f37b113c46815deb160c5012073563679ef4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b6a93a42e0e61f0ba0005a942ee3bffb16c0574e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b99e890e6b32ffa11c145a16fefcf2c7137a9578",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dfaefd9a7808736fcd2ed0de108f55c4badc15cc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan743x: Initialize eth_syslock spinlock before use\n\nlan743x_hardware_init() calls pci11x1x_strap_get_status() during the\nPCI11x1x probe sequence. That helper acquires the Ethernet subsystem\nhardware lock via lan743x_hs_syslock_acquire(), which relies on\nadapter->eth_syslock_spinlock to serialize access.\n\nThe spinlock is currently initialized only after the strap status is\nread. With CONFIG_DEBUG_SPINLOCK enabled, taking the zeroed initialized\nspinlock can trip the spinlock debug check.\n\nFix by initializing adapter->eth_syslock_spinlock before reading the\nstrap status so the probe path never attempts to lock an uninitialized\nspinlock."
    }
  ],
  "lastModified": "2026-08-17T06:18:01.600",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}