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CVE-2026-31723: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_subset: Fix net_device lifecycle with device_move The net_device is allocated during function instance creation and registered during the bind phase with the gadget device as its sysfs parent. When the function unbinds, the parent device is destroyed, but the net_device survives, resulting in dangling sysfs symlinks: console:/ # ls -l /sys/class/net/usb0 lrwxrwxrwx ... /sys/class/net/usb0 -> /sys/devices/platform/.../gadget.0/net/usb0 console:/ # ls -l /sys/devices/platform/.../gadget.0/net/usb0 ls: .../gadget.0/net/usb0: No such file or directory Use device_move() to reparent the net_device between the gadget device tree and /sys/devices/virtual across bind and unbind cycles. During the final unbind, calling device_move(NULL) moves the net_device to the virtual device tree before the gadget device is destroyed. On rebinding, device_move() reparents the device back under the new gadget, ensuring proper sysfs topology and power management ordering. To maintain compatibility with legacy composite drivers (e.g., multi.c), the bound flag is used to indicate whether the network device is shared and pre-registered during the legacy driver's bind phase.

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    • Linux Linux: 8cedba7c73af1369599b1111639cfeb66fe13aaa преди c26916e8413c8fc44834fd9df4899312fd6cf880; 8cedba7c73af1369599b1111639cfeb66fe13aaa преди edb08047051883591517feb5a51bf2bfd2b769fb; 8cedba7c73af1369599b1111639cfeb66fe13aaa преди 70707ce668494c4d35fe070dfbc7cc541b293107; 8cedba7c73af1369599b1111639cfeb66fe13aaa преди 9cbc4f109bb216623894d8819fb930210ed34b21; 8cedba7c73af1369599b1111639cfeb66fe13aaa преди fde29916e4cc736c4ca6c78f331e12b2c73ccafd; 8cedba7c73af1369599b1111639cfeb66fe13aaa преди 06524cd1c9011bee141a87e43ab878641ed3652b
    • Linux Linux: 3.11; преди 3.11; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.81 до 6.12.*; 6.18.22 до 6.18.*; 6.19.12 до 6.19.*; 7.0 до *

    История

    • 1 май 2026 Публикувано

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    CVE-2026-31723: Linux | freedomonline.bg