ghsa-v2qv-379g-fmvw
Vulnerability from github
Published
2025-09-22 21:30
Modified
2025-09-22 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

media: ti-vpe: cal: Fix a NULL pointer dereference in cal_ctx_v4l2_init_formats()

In cal_ctx_v4l2_init_formats(), devm_kzalloc() is assigned to ctx->active_fmt and there is a dereference of it after that, which could lead to NULL pointer dereference on failure of devm_kzalloc().

Fix this bug by adding a NULL check of ctx->active_fmt.

This bug was found by a static analyzer.

Builds with 'make allyesconfig' show no new warnings, and our static analyzer no longer warns about this code.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49254"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:02Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ti-vpe: cal: Fix a NULL pointer dereference in cal_ctx_v4l2_init_formats()\n\nIn cal_ctx_v4l2_init_formats(), devm_kzalloc() is assigned to\nctx-\u003eactive_fmt and there is a dereference of it after that, which could\nlead to NULL pointer dereference on failure of devm_kzalloc().\n\nFix this bug by adding a NULL check of ctx-\u003eactive_fmt.\n\nThis bug was found by a static analyzer.\n\nBuilds with \u0027make allyesconfig\u0027 show no new warnings, and our static\nanalyzer no longer warns about this code.",
  "id": "GHSA-v2qv-379g-fmvw",
  "modified": "2025-09-22T21:30:16Z",
  "published": "2025-09-22T21:30:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49254"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1381f1a629a090c251965edb56f849ad648414a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91e2805579ab0783eed53acc2bf9fb553e939004"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa613ac270292e102503e9767882e39200efe608"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abd77889851d2ead0d0c9c4d29f1808801477b00"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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