ghsa-jc9r-g3mj-xmwh
Vulnerability from github
Published
2025-02-27 21:32
Modified
2025-02-27 21:32
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

srcu: Tighten cleanup_srcu_struct() GP checks

Currently, cleanup_srcu_struct() checks for a grace period in progress, but it does not check for a grace period that has not yet started but which might start at any time. Such a situation could result in a use-after-free bug, so this commit adds a check for a grace period that is needed but not yet started to cleanup_srcu_struct().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49651"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:40Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsrcu: Tighten cleanup_srcu_struct() GP checks\n\nCurrently, cleanup_srcu_struct() checks for a grace period in progress,\nbut it does not check for a grace period that has not yet started but\nwhich might start at any time.  Such a situation could result in a\nuse-after-free bug, so this commit adds a check for a grace period that\nis needed but not yet started to cleanup_srcu_struct().",
  "id": "GHSA-jc9r-g3mj-xmwh",
  "modified": "2025-02-27T21:32:14Z",
  "published": "2025-02-27T21:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49651"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ed00760203d8018bee042fbfe8e076579be2c2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e997dda6502eefbc1032d6b0da7b353c53344b07"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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