CVE-2026-68368

The CVE concerns the Linux kernel USB gadget driver f_ncm (ncm_unwrap_ntb). The issue: when unpacking host-supplied NTBs, the code checked datagram length against frame_max but did not ensure the datagram fits within the declared block length, and subsequent NTBs from a single socket buffer were ...

CVE-2026-68368 usb: gadget: f_ncm: validate datagram bounds in ncm_unwrap_ntb()

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: validate datagram bounds in ncmunwrapntb When unpacking host-supplied NTBs, ncmunwrapntb checks datagram length against framemax but does not verify that the datagram fits within the declared block length...

CVE-2026-31617

Technical details are not publicly available in the provided documents. No vendor/product/version specifics are given beyond the general description. Monitor for updates in the connected sources.

CVE-2026-31617

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: validate minimum blocklen in ncmunwrapntb The blocklen read from the host-supplied NTB header is checked against ntbmax but has no lower bound. When blocklen is smaller than opts-ndpsize, the bounds check of:...

PT-2026-34969

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ncm unwrap ntb function where the block len read from the host-supplied NTB header lacks a lower bound check. When block len is smaller than opts-ndp size, the...

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 lack of verification of the minimum block len in the ncmunwrapntb function. This vulnerabilit...

CLSA-2024-1718973513 Fix of 21 CVEs

CVE-url: https://ubuntu.com/security/CVE-2024-26777 - fbdev: sis: Error out if pixclock equals zero CVE-url: https://ubuntu.com/security/CVE-2021-47542 - net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic83xxaddrings CVE-url: https://ubuntu.com/security/CVE-2021-47518 - nfc: fix...

CVE-2024-27405 usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs It is observed sometimes when tethering is used over NCM with Windows 11 as host, at some instances, the gadgetgiveback has one byte appended at the end of a prop...