phy: qcom-qusb2: Fix NULL pointer dereference on early suspend (Linux Linux)

CVE-2025-71193
Non disponible

En bref

Source
NVD
EPSS
EPSS 0.20 % · centile 9 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

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.

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 891a96f65ac3b12883ddbc6d1a9adf6e54dc903c < beba460a299150b5d8dcbe3474a8f4bdf0205180 ; affected 891a96f65ac3b12883ddbc6d1a9adf6e54dc903c < d50a9b7fd07296a1ab81c49ceba14cae3d31df86 ; affected 891a96f65ac3b12883ddbc6d1a9adf6e54dc903c < 4ac15caa27ff842b068a54f1c6a8ff8b31f658e7 ; affected 891a96f65ac3b12883ddbc6d1a9adf6e54dc903c < 1ca52c0983c34fca506921791202ed5bdafd5306
Linux · Linuxaffected 4.17 ; unaffected 0 < 4.17 ; unaffected 6.6.122 ≤ 6.6.* ; unaffected 6.12.67 ≤ 6.12.* ; unaffected 6.18.7 ≤ 6.18.* ; unaffected 6.19 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD