ghsa-7gp9-jx5j-42cf
Vulnerability from github
Published
2025-05-14 15:31
Modified
2025-05-14 15:31
Details

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

media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()

In dw2102_i2c_transfer, 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 dw2102_i2c_transfer. 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 950e252cb469 ("[media] dw2102: limit messages to buffer size")

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53146"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-14T13:15:47Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()\n\nIn dw2102_i2c_transfer, 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 dw2102_i2c_transfer. 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 950e252cb469\n(\"[media] dw2102: limit messages to buffer size\")",
  "id": "GHSA-7gp9-jx5j-42cf",
  "modified": "2025-05-14T15:31:37Z",
  "published": "2025-05-14T15:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53146"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97fdbdb750342cbc204befde976872fedb406ee6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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