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CVE-2026-90295

Estado: RecibidaSin puntuar—

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

cpufreq: imx6q: fix out-of-bounds write when probed more than once

imx6_soc_volt is allocated fresh on every probe, sized to the number of ARM OPPs:

but it is filled through soc_opp_count, which has static storage and is never reset. A second bind after an unbind keeps indexing from where the first one stopped, and writes past the end of the new array.

Unbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN:

The write lands one u32 past the end of the allocation.

soc_opp_count is only read a few lines below the loop that fills it, so it never needed static storage. Make it a local.

Detalles técnicos trazas, registros y código del informe original
	imx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt),
				     GFP_KERNEL);

  BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34
  Write of size 4 at addr c5e90480 by task binder/73
   imx6q_cpufreq_probe from platform_probe+0x88/0xe4
   platform_probe from really_probe+0x108/0x384
   bind_store from kernfs_fop_write_iter+0x1b4/0x28c

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-2026-90295",
  "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": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
              "lessThan": "263a35331169390f7f9ccb51d74e668610199af4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
              "lessThan": "49f2f9b1d0cc76cf221306fc707703205bd27073",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
              "lessThan": "c5135bc34ea37e9d19f758e61ac44415afb3891a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
              "lessThan": "55864b26c22cbd4b2e0d36154a8c35931c2e133b",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
              "lessThan": "aaa66e60c0e21d19993a95bc3718dc29eb2d3192",
              "versionType": "git"
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            {
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              "lessThan": "55516986a3d81325c84f2d4ae9cd03116bc63599",
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/cpufreq/imx6q-cpufreq.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/cpufreq/imx6q-cpufreq.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:26.853",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/263a35331169390f7f9ccb51d74e668610199af4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/49f2f9b1d0cc76cf221306fc707703205bd27073",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/55516986a3d81325c84f2d4ae9cd03116bc63599",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/55864b26c22cbd4b2e0d36154a8c35931c2e133b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/aaa66e60c0e21d19993a95bc3718dc29eb2d3192",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c5135bc34ea37e9d19f758e61ac44415afb3891a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: imx6q: fix out-of-bounds write when probed more than once\n\nimx6_soc_volt is allocated fresh on every probe, sized to the number of\nARM OPPs:\n\n\timx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt),\n\t\t\t\t     GFP_KERNEL);\n\nbut it is filled through soc_opp_count, which has static storage and is\nnever reset. A second bind after an unbind keeps indexing from where the\nfirst one stopped, and writes past the end of the new array.\n\nUnbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN:\n\n  BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34\n  Write of size 4 at addr c5e90480 by task binder/73\n   imx6q_cpufreq_probe from platform_probe+0x88/0xe4\n   platform_probe from really_probe+0x108/0x384\n   bind_store from kernfs_fop_write_iter+0x1b4/0x28c\n\nThe write lands one u32 past the end of the allocation.\n\nsoc_opp_count is only read a few lines below the loop that fills it, so it\nnever needed static storage. Make it a local."
    }
  ],
  "lastModified": "2026-09-17T17:17:26.853",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}