ghsa-hrq7-rg66-qqxv
Vulnerability from github
Published
2025-12-30 15:30
Modified
2025-12-30 15:30
Details

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

media: af9005: Fix null-ptr-deref in af9005_i2c_xfer

In af9005_i2c_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach af9005_i2c_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash.

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54314"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:20Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: af9005: Fix null-ptr-deref in af9005_i2c_xfer\n\nIn af9005_i2c_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach af9005_i2c_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")",
  "id": "GHSA-hrq7-rg66-qqxv",
  "modified": "2025-12-30T15:30:36Z",
  "published": "2025-12-30T15:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54314"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/033b0c0780adee32dde218179e9bc51d2525108f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98c12abb275b75a98ff62de9466d21e4daa98536"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abb6fd93e05e80668d2317fe1110bc99b05034c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7e5ac737db25d7387fe517cb5207706782b6cf8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e595ff350b2fd600823ee8491df7df693ae4b7c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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