ghsa-ww57-48hq-5w83
Vulnerability from github
Published
2024-09-11 18:31
Modified
2024-09-13 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:

i2c: tegra: Do not mark ACPI devices as irq safe

On ACPI machines, the tegra i2c module encounters an issue due to a mutex being called inside a spinlock. This leads to the following bug:

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585
...

Call trace:
__might_sleep
__mutex_lock_common
mutex_lock_nested
acpi_subsys_runtime_resume
rpm_resume
tegra_i2c_xfer

The problem arises because during __pm_runtime_resume(), the spinlock &dev->power.lock is acquired before rpm_resume() is called. Later, rpm_resume() invokes acpi_subsys_runtime_resume(), which relies on mutexes, triggering the error.

To address this issue, devices on ACPI are now marked as not IRQ-safe, considering the dependency of acpi_subsys_runtime_resume() on mutexes.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-45029"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-11T16:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: tegra: Do not mark ACPI devices as irq safe\n\nOn ACPI machines, the tegra i2c module encounters an issue due to a\nmutex being called inside a spinlock. This leads to the following bug:\n\n\tBUG: sleeping function called from invalid context at kernel/locking/mutex.c:585\n\t...\n\n\tCall trace:\n\t__might_sleep\n\t__mutex_lock_common\n\tmutex_lock_nested\n\tacpi_subsys_runtime_resume\n\trpm_resume\n\ttegra_i2c_xfer\n\nThe problem arises because during __pm_runtime_resume(), the spinlock\n\u0026dev-\u003epower.lock is acquired before rpm_resume() is called. Later,\nrpm_resume() invokes acpi_subsys_runtime_resume(), which relies on\nmutexes, triggering the error.\n\nTo address this issue, devices on ACPI are now marked as not IRQ-safe,\nconsidering the dependency of acpi_subsys_runtime_resume() on mutexes.",
  "id": "GHSA-ww57-48hq-5w83",
  "modified": "2024-09-13T18:31:42Z",
  "published": "2024-09-11T18:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45029"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14d069d92951a3e150c0a81f2ca3b93e54da913b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2853e1376d8161b04c9ff18ba82b43f08a049905"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6861faf4232e4b78878f2de1ed3ee324ddae2287"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a89aef1e6cc43fa019a58080ed05c839e6c77876"
    }
  ],
  "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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