ghsa-q7ch-p7wx-7pf8
Vulnerability from github
Published
2024-07-29 15:30
Modified
2024-07-29 15:30
Details

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

ila: block BH in ila_output()

As explained in commit 1378817486d6 ("tipc: block BH before using dst_cache"), net/core/dst_cache.c helpers need to be called with BH disabled.

ila_output() is called from lwtunnel_output() possibly from process context, and under rcu_read_lock().

We might be interrupted by a softirq, re-enter ila_output() and corrupt dst_cache data structures.

Fix the race by using local_bh_disable().

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2024-41081"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T15:15:15Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nila: block BH in ila_output()\n\nAs explained in commit 1378817486d6 (\"tipc: block BH\nbefore using dst_cache\"), net/core/dst_cache.c\nhelpers need to be called with BH disabled.\n\nila_output() is called from lwtunnel_output()\npossibly from process context, and under rcu_read_lock().\n\nWe might be interrupted by a softirq, re-enter ila_output()\nand corrupt dst_cache data structures.\n\nFix the race by using local_bh_disable().",
  "id": "GHSA-q7ch-p7wx-7pf8",
  "modified": "2024-07-29T15:30:48Z",
  "published": "2024-07-29T15:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41081"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/522c3336c2025818fa05e9daf0ac35711e55e316"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7435bd2f84a25aba607030237261b3795ba782da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96103371091c6476eb07f4c66624bdd1b42f758a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f9c79d8e527d867e0875868b14fb76e6011e70c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a0cafb7b0b94d18e4813ee4b712a056f280e7b5a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4eb25a3d70df925a9fa4e82d17a958a0a228f5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf28ff8e4c02e1ffa850755288ac954b6ff0db8c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/feac2391e26b086f73be30e9b1ab215eada8d830"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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