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CVE-2026-93071

Estado: RecibidaSin puntuar—

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

media: bcm2835-unicam: Fix asc leaked in error/remove path

v4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when v4l2_async_nf_cleanup() is called.

Call v4l2_async_nf_cleanup() properly in the driver paths.

Discovered with kmemleak after rmmod:

Detalles técnicos trazas, registros y código del informe original
unreferenced object 0xffff000084526b80 (size 64):
  comm "modprobe", pid 185, jiffies 4295013512
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff  ................
    40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff  @.......`.......
  backtrace (crc ac584083):
    [<00000000ffb081a7>] kmemleak_alloc+0x38/0x44
    [<00000000d2fd9301>] __kmalloc+0x1b0/0x250
    [<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c
    [<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64

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-2026-93071",
  "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": "392cd78d495f36c201eb5cc425b01017d493e094",
              "lessThan": "5479372db364c80bb6bd59f640f5c31de3984bab",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "lessThan": "2c29cd408ef86e695acb2a5d4e00fa2f5695368d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "lessThan": "de9be39cefda1ecd762e6a913665c01f7bb18100",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "392cd78d495f36c201eb5cc425b01017d493e094",
              "lessThan": "253c9659e25131b0169f718e7d094ac1aa0d9279",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/media/platform/broadcom/bcm2835-unicam.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.10",
              "versionType": "semver"
            },
            {
              "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/media/platform/broadcom/bcm2835-unicam.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:18:00.977",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/253c9659e25131b0169f718e7d094ac1aa0d9279",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2c29cd408ef86e695acb2a5d4e00fa2f5695368d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5479372db364c80bb6bd59f640f5c31de3984bab",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/de9be39cefda1ecd762e6a913665c01f7bb18100",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: bcm2835-unicam: Fix asc leaked in error/remove path\n\nv4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when\nv4l2_async_nf_cleanup() is called.\n\nCall v4l2_async_nf_cleanup() properly in the driver paths.\n\nDiscovered with kmemleak after rmmod:\n\nunreferenced object 0xffff000084526b80 (size 64):\n  comm \"modprobe\", pid 185, jiffies 4295013512\n  hex dump (first 32 bytes):\n    01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff  ................\n    40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff  @.......`.......\n  backtrace (crc ac584083):\n    [<00000000ffb081a7>] kmemleak_alloc+0x38/0x44\n    [<00000000d2fd9301>] __kmalloc+0x1b0/0x250\n    [<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c\n    [<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64"
    }
  ],
  "lastModified": "2026-09-17T17:18:00.977",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}