CVE-2025-71193
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 [...] ```
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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.
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-71193",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "891a96f65ac3b12883ddbc6d1a9adf6e54dc903c",
"lessThan": "beba460a299150b5d8dcbe3474a8f4bdf0205180",
"versionType": "git"
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{
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{
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"versionType": "git"
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{
"status": "affected",
"version": "891a96f65ac3b12883ddbc6d1a9adf6e54dc903c",
"lessThan": "1ca52c0983c34fca506921791202ed5bdafd5306",
"versionType": "git"
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],
"programFiles": [
"drivers/phy/qualcomm/phy-qcom-qusb2.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.122",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.67",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.7",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/phy/qualcomm/phy-qcom-qusb2.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-02-04T17:16:11.193",
"references": [
{
"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",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"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."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nphy: qcom-qusb2: Corrección de desreferencia de puntero NULL en suspensión temprana\n\nHabilitar PM en tiempo de ejecución antes de adjuntar la instancia QPHY como datos del controlador puede llevar a una desreferencia de puntero NULL en las retrollamadas de PM en tiempo de ejecución que esperan datos de controlador válidos. Hay una pequeña ventana donde la retrollamada de suspensión puede ejecutarse después de la habilitación de PM en tiempo de ejecución y antes de la prohibición en tiempo de ejecución. Esto causa un fallo esporádico durante el arranque:\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\nAdjuntar la instancia QPHY como datos del controlador antes de habilitar PM en tiempo de ejecución para prevenir la desreferencia de puntero NULL en las retrollamadas de PM en tiempo de ejecución.\n\nReordenar pm_runtime_enable() y pm_runtime_forbid() para prevenir una ventana corta donde puede ocurrir una suspensión en tiempo de ejecución innecesaria.\n\nUsar la versión gestionada por devres para asegurar que PM en tiempo de ejecución se deshabilite simétricamente durante la eliminación del controlador para una limpieza adecuada."
}
],
"lastModified": "2026-06-17T10:03:51.697",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}