{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-89887",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-89887"
  ],
  "published": "2026-09-16T10:32:03Z",
  "summary": "media: i2c: ov7740: fix use-after-destroy in remove",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: ov7740: fix use-after-destroy in remove\n\nThe ov7740_remove() function had a severe teardown order bug where it\ndestroyed the driver's mutex before freeing the V4L2 control handler\nwhich relies on that mutex, leading to a use-after-destroy kernel panic.\nFurthermore, the driver explicitly called v4l2_ctrl_handler_free() and\nmutex_destroy() sequentially, but then called ov7740_free_controls()\nwhich invokes both of them a second time, resulting in a double-free.\n\nThis patch fixes the issue by unregistering the subdevice first, and\nrelying exclusively on ov7740_free_controls() to safely tear down the\nmutex and control handler in the correct order.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-89887"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9e4693436c7dcf8584002500ce4b434b79bbf9ed"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/81e9765878d3ac8ad18e3a683332b5d6bc3a0e33"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7512838a19af0a284a58435292243fad21e57ff1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/25e2505866c577db2661e4d431f0907c6ec9a3b4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/af81f35e4f429e769b784754e1aa4d7a922470ac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/09453b467990e8ef8fe09f45a685f9a625248d33"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5d1b3dea5a44124bab6c14a2d71b977dabed54e7"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-16T14:40:32Z"
  }
}