GHSA-HRWP-CV9C-VC93

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-20 15:31
VLAI
Details

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

net/smc: Do not re-initialize smc hashtables

INIT_HLIST_HEAD(&smc_v_hashinfo.ht) are called after smc_nl_init(), proto_register() and sock_register(). This can lead to smc_v_hashinfo.ht being reset even though hash entries already exist and are being used, possibly resulting in a corrupted list.

Remove unnecessary and dangerous re-initialisation of smc_v*_hashinfo.ht in smc_init(); it is implicitly initialised to zero anyhow. Add HLIST_HEAD_INIT to the definitions for clarity.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-64005"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:17:40Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Do not re-initialize smc hashtables\n\nINIT_HLIST_HEAD(\u0026smc_v*_hashinfo.ht) are called after smc_nl_init(),\nproto_register() and sock_register(). This can lead to smc_v*_hashinfo.ht\nbeing reset even though hash entries already exist and are being used,\npossibly resulting in a corrupted list.\n\nRemove unnecessary and dangerous re-initialisation of smc_v*_hashinfo.ht in\nsmc_init(); it is implicitly initialised to zero anyhow. Add\nHLIST_HEAD_INIT to the definitions for clarity.",
  "id": "GHSA-hrwp-cv9c-vc93",
  "modified": "2026-07-20T15:31:55Z",
  "published": "2026-07-19T18:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64005"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0cc9d0ac22d02f1ba1884de5d6de9eaf8b45d82d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2006605006e5a4a11d93e1ebdbbe95764d24276f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55cba6b883b41e5922c00ba9d4e3262131f46f1b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ec939367e700722ffbb1b7cacccbb1a3cf0ebd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64c96e497d5ada0b90e99bf58f893aa2b73dcfbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e4389b0038781f19f97895186ed941ff8ac1678"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cdc79c05cc375f68ae87b0c74fdaac1a5c93155a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ed7a758313011885347b854e97cb95903ef3c3f7"
    }
  ],
  "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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