ghsa-fgr8-gcxj-6pq5
Vulnerability from github
Published
2025-04-17 18:31
Modified
2025-04-17 21:31
Severity ?
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Details

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

can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path

In es58x_rx_err_msg(), if can->do_set_mode() fails, the function directly returns without calling netif_rx(skb). This means that the skb previously allocated by alloc_can_err_skb() is not freed. In other terms, this is a memory leak.

This patch simply removes the return statement in the error branch and let the function continue.

Issue was found with GCC -fanalyzer, please follow the link below for details.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47671"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-17T18:15:43Z",
    "severity": "LOW"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path\n\nIn es58x_rx_err_msg(), if can-\u003edo_set_mode() fails, the function\ndirectly returns without calling netif_rx(skb). This means that the\nskb previously allocated by alloc_can_err_skb() is not freed. In other\nterms, this is a memory leak.\n\nThis patch simply removes the return statement in the error branch and\nlet the function continue.\n\nIssue was found with GCC -fanalyzer, please follow the link below for\ndetails.",
  "id": "GHSA-fgr8-gcxj-6pq5",
  "modified": "2025-04-17T21:31:04Z",
  "published": "2025-04-17T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47671"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f389e1276a5389c92cef860c9fde8e1c802a871"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7eb0881aec26099089f12ae850aebd93190b1dfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d9447f768bc8c60623e4bb3ce65b8f4654d33a50"
    }
  ],
  "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:L",
      "type": "CVSS_V3"
    }
  ]
}


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