ghsa-j737-8h5g-42g9
Vulnerability from github
Published
2024-02-21 15:30
Modified
2024-06-03 18:55
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

tls: fix race between async notify and socket close

The submitting thread (one which called recvmsg/sendmsg) may exit as soon as the async crypto handler calls complete() so any code past that point risks touching already freed data.

Try to avoid the locking and extra flags altogether. Have the main thread hold an extra reference, this way we can depend solely on the atomic ref counter for synchronization.

Don't futz with reiniting the completion, either, we are now tightly controlling when completion fires.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26583"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-21T15:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: fix race between async notify and socket close\n\nThe submitting thread (one which called recvmsg/sendmsg)\nmay exit as soon as the async crypto handler calls complete()\nso any code past that point risks touching already freed data.\n\nTry to avoid the locking and extra flags altogether.\nHave the main thread hold an extra reference, this way\nwe can depend solely on the atomic ref counter for\nsynchronization.\n\nDon\u0027t futz with reiniting the completion, either, we are now\ntightly controlling when completion fires.",
  "id": "GHSA-j737-8h5g-42g9",
  "modified": "2024-06-03T18:55:49Z",
  "published": "2024-02-21T15:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26583"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6209319b2efdd8524691187ee99c40637558fa33"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a3ca06d04d589deec81f56229a9a9d62352ce01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86dc27ee36f558fe223dbdfbfcb6856247356f4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aec7961916f3f9e88766e2688992da6980f11b8d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f17d21ea73918ace8afb9c2d8e734dbf71c2c9d7"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZOU3745CWCDZ7EMKMXB2OEEIB5Q3IWM"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OX4EWCYDZRTOEMC2C6OF7ZACAP23SUB5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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