GHSA-QV7M-P22W-X3R6

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32
VLAI
Details

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

media: cx23885: add ioremap return check and cleanup

Add a check for the return value of pci_ioremap_bar() in cx23885_dev_setup(). If ioremap for BAR0 fails, release the already allocated PCI memory region, decrement the device count, and return -ENODEV.

This prevents a potential null pointer dereference and ensures proper cleanup on memory mapping failure.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68226"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:10Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cx23885: add ioremap return check and cleanup\n\nAdd a check for the return value of pci_ioremap_bar()\nin cx23885_dev_setup().\nIf ioremap for BAR0 fails, release the already allocated\nPCI memory region,\ndecrement the device count, and return -ENODEV.\n\nThis prevents a potential null pointer dereference and\nensures proper cleanup\non memory mapping failure.",
  "id": "GHSA-qv7m-p22w-x3r6",
  "modified": "2026-08-19T18:32:11Z",
  "published": "2026-08-10T15:33:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68226"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a7636e3d5204fb18fdf1c3f909a3d9d9e24064c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83540d86d717735b52a43e4ba1b784da5cc2310a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fbdca4c99f68734e9b6c030973fb61a11bede15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9052fec0bb84eace81ac7bad071266052870cdf3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0701e387b46e2481c05b47f1235b954bfc2af3e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c68c4ce72feb6fcccc843eb3baa7af60189ed567"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f58f4b571bd75c78bbf15441086ba0c2830c1aa5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff3c670a1de3a714f5644e37b9446fe7c3299fd3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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