FKIE_CVE-2025-71193

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-02-05 14:57
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: phy: qcom-qusb2: Fix NULL pointer dereference on early suspend Enabling runtime PM before attaching the QPHY instance as driver data can lead to a NULL pointer dereference in runtime PM callbacks that expect valid driver data. There is a small window where the suspend callback may run after PM runtime enabling and before runtime forbid. This causes a sporadic crash during boot: ``` Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a1 [...] CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.7+ #116 PREEMPT Workqueue: pm pm_runtime_work pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : qusb2_phy_runtime_suspend+0x14/0x1e0 [phy_qcom_qusb2] lr : pm_generic_runtime_suspend+0x2c/0x44 [...] ``` Attach the QPHY instance as driver data before enabling runtime PM to prevent NULL pointer dereference in runtime PM callbacks. Reorder pm_runtime_enable() and pm_runtime_forbid() to prevent a short window where an unnecessary runtime suspend can occur. Use the devres-managed version to ensure PM runtime is symmetrically disabled during driver removal for proper cleanup.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ca52c0983c34fca506921791202ed5bdafd5306
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4ac15caa27ff842b068a54f1c6a8ff8b31f658e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/beba460a299150b5d8dcbe3474a8f4bdf0205180
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d50a9b7fd07296a1ab81c49ceba14cae3d31df86
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nphy: qcom-qusb2: Fix NULL pointer dereference on early suspend\n\nEnabling runtime PM before attaching the QPHY instance as driver data\ncan lead to a NULL pointer dereference in runtime PM callbacks that\nexpect valid driver data. There is a small window where the suspend\ncallback may run after PM runtime enabling and before runtime forbid.\nThis causes a sporadic crash during boot:\n\n```\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000000a1\n[...]\nCPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.7+ #116 PREEMPT\nWorkqueue: pm pm_runtime_work\npstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : qusb2_phy_runtime_suspend+0x14/0x1e0 [phy_qcom_qusb2]\nlr : pm_generic_runtime_suspend+0x2c/0x44\n[...]\n```\n\nAttach the QPHY instance as driver data before enabling runtime PM to\nprevent NULL pointer dereference in runtime PM callbacks.\n\nReorder pm_runtime_enable() and pm_runtime_forbid() to prevent a\nshort window where an unnecessary runtime suspend can occur.\n\nUse the devres-managed version to ensure PM runtime is symmetrically\ndisabled during driver removal for proper cleanup."
    }
  ],
  "id": "CVE-2025-71193",
  "lastModified": "2026-02-05T14:57:34.297",
  "metrics": {},
  "published": "2026-02-04T17:16:11.193",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1ca52c0983c34fca506921791202ed5bdafd5306"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4ac15caa27ff842b068a54f1c6a8ff8b31f658e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/beba460a299150b5d8dcbe3474a8f4bdf0205180"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d50a9b7fd07296a1ab81c49ceba14cae3d31df86"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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