ghsa-94mc-r26h-rwj7
Vulnerability from github
Published
2025-02-09 12:30
Modified
2025-02-11 18:31
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:

irqchip/gic-v3-its: Don't enable interrupts in its_irq_set_vcpu_affinity()

The following call-chain leads to enabling interrupts in a nested interrupt disabled section:

irq_set_vcpu_affinity() irq_get_desc_lock() raw_spin_lock_irqsave() <--- Disable interrupts its_irq_set_vcpu_affinity() guard(raw_spinlock_irq) <--- Enables interrupts when leaving the guard() irq_put_desc_unlock() <--- Warns because interrupts are enabled

This was broken in commit b97e8a2f7130, which replaced the original raw_spin_[un]lock() pair with guard(raw_spinlock_irq).

Fix the issue by using guard(raw_spinlock).

[ tglx: Massaged change log ]

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-57949"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-09T12:15:28Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v3-its: Don\u0027t enable interrupts in its_irq_set_vcpu_affinity()\n\nThe following call-chain leads to enabling interrupts in a nested interrupt\ndisabled section:\n\nirq_set_vcpu_affinity()\n  irq_get_desc_lock()\n     raw_spin_lock_irqsave()   \u003c--- Disable interrupts\n  its_irq_set_vcpu_affinity()\n     guard(raw_spinlock_irq)   \u003c--- Enables interrupts when leaving the guard()\n  irq_put_desc_unlock()        \u003c--- Warns because interrupts are enabled\n\nThis was broken in commit b97e8a2f7130, which replaced the original\nraw_spin_[un]lock() pair with guard(raw_spinlock_irq).\n\nFix the issue by using guard(raw_spinlock).\n\n[ tglx: Massaged change log ]",
  "id": "GHSA-94mc-r26h-rwj7",
  "modified": "2025-02-11T18:31:33Z",
  "published": "2025-02-09T12:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57949"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35cb2c6ce7da545f3b5cb1e6473ad7c3a6f08310"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c84ff2e788fce0099ee3e71a3ed258b1ca1a223"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93955a7788121ab5a0f7f27e988b2ed1135a4866"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7b0e89610dd45ac6cf0d6f99bfa9ccc787db344"
    }
  ],
  "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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