ghsa-f6f6-f4j2-hrcf
Vulnerability from github
Published
2025-09-23 21:30
Modified
2025-09-23 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:

qede: confirm skb is allocated before using

qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL.

Add a check in case build_skb() failed to allocate and return NULL.

The NULL return is handled correctly in callers to qede_build_skb().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49084"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:45Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nqede: confirm skb is allocated before using\n\nqede_build_skb() assumes build_skb() always works and goes straight\nto skb_reserve(). However, build_skb() can fail under memory pressure.\nThis results in a kernel panic because the skb to reserve is NULL.\n\nAdd a check in case build_skb() failed to allocate and return NULL.\n\nThe NULL return is handled correctly in callers to qede_build_skb().",
  "id": "GHSA-f6f6-f4j2-hrcf",
  "modified": "2025-09-23T21:30:54Z",
  "published": "2025-09-23T21:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49084"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093"
    }
  ],
  "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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