CVE-2026-43421

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix netdevice lifecycle with devicemove The network device outlived its parent gadget device during disconnection, resulting in dangling sysfs links and null pointer dereference problems. A prior attempt to sol...

UBUNTU-CVE-2026-43421

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix netdevice lifecycle with devicemove The network device outlived its parent gadget device during disconnection, resulting in dangling sysfs links and null pointer dereference problems. A prior attempt to sol...

CVE-2026-43423

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix atomic context locking issue The ncmsetalt function was holding a mutex to protect against races with configfs, which invokes the might-sleep function inside an atomic context. Remove the struct netdevice...

CVE-2026-43423

Concrete details show a Linux kernel issue in the usb gadget f_ncm driver: the ncm_set_alt function held a mutex to guard configfs races and invoked may_sleep in an atomic context, enabling a potential sleep path. The fix removes a struct net_device pointer from f_ncm_opts and introduces a new bo...

CVE-2026-43423 usb: gadget: f_ncm: Fix atomic context locking issue

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix atomic context locking issue The ncmsetalt function was holding a mutex to protect against races with configfs, which invokes the might-sleep function inside an atomic context. Remove the struct netdevice...

CVE-2026-43421

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix netdevice lifecycle with devicemove The network device outlived its parent gadget device during disconnection, resulting in dangling sysfs links and null pointer dereference problems. A prior attempt to sol...

Linux Distros Unpatched Vulnerability : CVE-2026-43423

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix atomic context locking issue The ncmsetalt function was holding a mut...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the usb gadget fncm driver. When the connection is disconnected, the network device’s lifecycle...

SUSE CVE-2026-23320

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2026-23320

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2026-23320

CVE-2026-23320 concerns the Linux kernel USB gadget f_ncm driver. The root cause is that the net_device was allocated in ncm_alloc_inst() and freed in ncm_free_inst(), tying the interface lifetime to the configuration instance rather than the USB connection, which can cause the network interface ...

usb: gadget: f_ncm: Refactor bind path to use __free()

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EUVD-2025-36986

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Refactor bind path to use free After an bind/unbind cycle, the ncm-notifyreq is left stale. If a subsequent bind fails, the unified error label attempts to free this stale request, leading to a NULL pointer...

CVE-2025-40092

CVE-2025-40092 affects the Linux kernel USB gadget driver, specifically the f_ncm function. After a bind/unbind cycle, ncm->notify_req can remain stale; if a subsequent bind fails, the error handling path would attempt to free the stale request via ep->ops->free_request, causing a NULL p...

CVE-2025-40092 usb: gadget: f_ncm: Refactor bind path to use __free()

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Refactor bind path to use free After an bind/unbind cycle, the ncm-notifyreq is left stale. If a subsequent bind fails, the unified error label attempts to free this stale request, leading to a NULL pointer...

PT-2025-44382

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's USB gadget functionality, specifically within the f ncm module. After a bind/unbind cycle, the ncm-notify req variable can become stale. A subsequent...

ROS-20240924-04

A vulnerability in the fastrpc component of the Linux operating system kernel is related to race conditions after a memory release. Exploitation of the vulnerability could allow an attacker to affect the confidentiality, integrity, and availability A vulnerability in the usbsubmiturb function of...

The vulnerability in the `drivers/usb/gadget/function/f_ncm.c` component of the Linux operating system, related to pointer assignment errors, allows an attacker to cause a service failure.

The vulnerability in the drivers/usb/gadget/function/fncm.c component of the Linux operating system is related to pointer assignment errors. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

CVE-2023-52894

CVE-2023-52894 affects the Linux kernel USB gadget f_ncm path, where a NULL cdev->gadget dereferences max_speed in ncm_bitrate() during SPEED_NOTIFY handling. The issue was observed on an aarch64 GKI 5.10.149-android13 crash (NULL pointer dereference at 0x5c) and is linked to ncm_do_notify() S...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a potential null pointer dereference issue in the usb/gadget/fncm component...