CVE-2026-72346: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: platform/x86: bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume The driver registers two distinct WMI devices: a control device (BITLAND_WMI_CONTROL) and an event device (BITLAND_WMI_EVENT). During the probe phase, the event device handling path returns early before initializing the platform profile device (data->pp_dev), leaving it NULL. However, the PM sleep operations are registered globally for the WMI driver and are triggered for both devices. When entering suspend, the event device invokes bitland_mifs_wmi_suspend(), which passes the uninitialized data->pp_dev (NULL) into laptop_profile_get(). This leads to a NULL pointer dereference inside dev_get_drvdata(), causing a kernel Oops and halting the suspend sequence. Fix this by adding a validity check for data->pp_dev in both the suspend and resume callbacks, safely skipping profile operations for the event device.

Засегнати продукти

• Linux Linux: dc1ec4fa86b2b8bba2b6122f2b4420217b5bae9e преди 6f2cb20d8e286218d51754f06ee219d8ce754b18; dc1ec4fa86b2b8bba2b6122f2b4420217b5bae9e преди d3666875c75eb1bc8090343fa0d6fc8fb7924356
• Linux Linux: 7.1; преди 7.1; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-72346
• https://nvd.nist.gov/vuln/detail/CVE-2026-72346
• https://git.kernel.org/stable/c/6f2cb20d8e286218d51754f06ee219d8ce754b18
• https://git.kernel.org/stable/c/d3666875c75eb1bc8090343fa0d6fc8fb7924356