android-gadget

android-gadget 摘要 Android 使用的某些 Linux 内核版本受到 CVE-2021-39685 问题的影响。有关 CVE-2021-39685 的详细信息和 POC 可在 inspector-gadget 仓库中找到。 本仓库包含了针对多个 Android 特定 USB gadget 的 POC，包括： faccessory faudiosource fgsi fmtp fqcrndis frmnet 描述 a faccessory 在 composite.c 中分配的 EP0 缓冲区大小为 USBCOMPEP0BUFSIZ 4096 字节 函数的控制传输处理程序...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: frndis: Protect RNDIS options with a mutex The class/subclass/protocol options are susceptible to race conditions, as they can be accessed concurrently through configfs. A mutex should be used to protect these option...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Refactor the bind path to use free After a bind/unbind cycle, the ncm-notifyreq remains stale. If a subsequent bind fails, the unified error handling mechanism attempts to free this stale request. This leads to...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: fix use-after-free in usbgadgetstatework A race condition during the gadget teardown can lead to a use-after-free in usbgadgetstatework, as reported by KASAN: - BUG: KASAN: invalid-access in sysfs...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Remove WARNON from functionfsbind This commit addresses an issue related to a kernel panic that occurs when paniconwarn is enabled. The issue is caused by the unnecessary use of WARNON in functionfsbind, which c...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fmassstorage: Fixed a potential integer overflow in the checkcommandsizeinblocks function. The checkcommandsizeinblocks function calculates the data size in bytes by shifting common-datasizefromcmnd by the block size...

CVE-2026-89738

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: at91udc: drain polled-VBUS timer/work before udc is freed In polled-VBUS mode board.vbuspin && board.vbuspolled, probe arms a self-restarting cycle: at91vbustimer schedules vbustimerwork, and at91vbustimerwork calls...

CVE-2026-89733

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: fix dangling pointers in uvcfunctionbind and uvcfunctionunbind In uvcfunctionbind error path, we use usbepfreerequest which uses uvc-controlreq but does not set it to NULL afterwards. Thus, uvc-controlreq is a...

rndis-co

RNDIS-CO 概述 RNDIS USB Gadget 可能被利用，通过数据包过滤器更新机制 转储内核内存空间的内容。 描述 RNDISMSGSET USB 控制传输请求处理程序 - rndissetresponse 调用 genndissetresp，传入的缓冲区指针偏移量为 BufOffset + 8。 BufOffset 变量从 RNDIS 消息中获取，并且未经验证 以遵守缓冲区边界。因此，通过操纵四个字节的 rndissetmsgtype 的 InformationBufferOffset 成员，攻击者可以 将实际缓冲区偏移最多 0xffffffff 字节。 rndis.c -...

Linux Distros Unpatched Vulnerability : CVE-2026-89735

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: gadget: midi2: remove default configfs groups on teardown fmidi2allocinst creates default configfs child groups for the default endpoint and default block...

Linux Distros Unpatched Vulnerability : CVE-2026-89733

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: gadget: uvc: fix dangling pointers in uvcfunctionbind and uvcfunctionunbind In uvcfunctionbind error path, we use usbepfreerequest which uses uvc-controlre...

Linux Distros Unpatched Vulnerability : CVE-2026-89732

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: gadget: ffs: Prevent deadlock during ep0 read loop Currently, ffsep0read holds ffs-mutex when it prepares to go to sleep waiting for an event. When no setu...

Linux Distros Unpatched Vulnerability : CVE-2026-89734

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: gadget: uvc: Fix null pointer dereference in uvcgvideoinit In uvcgvideoinit, if kthreadrunworker fails, the error logged uses uvcgerr, however, the pointer...

Linux Distros Unpatched Vulnerability : CVE-2026-89736

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: gadget: uaudio: Fix use-after-free on sound card disconnect gaudiocleanup invokes sndcardfreewhenclosed to initiate sound card teardown and immediately fre...

CVE-2026-89735

A flaw was found in the Linux kernel's USB gadget MIDI2 driver. The driver fails to properly remove default configuration file system configfs groups during teardown, leading to a resource leak. A local attacker could exploit this vulnerability to cause memory exhaustion, potentially resulting in...

d-os-descriptor

d-os-descriptor 概述 USB小工具子系统在compositesetup函数（composite.c）的OS描述符处理部分存在安全问题。处理精心构造的控制传输请求消息会因空指针解引用或内存损坏而导致设备崩溃。 描述 compositesetup中针对接口接收者的OS描述符处理部分实现如下。 root@kitploit: case USBRECIPINTERFACE: if windex != 0x5 || wvalue 8 break; interface = wvalue & 0xFF; buf6 = windex; count =...

AZL-100542 CVE-2026-89738 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: at91udc: drain polled-VBUS timer/work before udc is freed In polled-VBUS mode board.vbuspin && board.vbuspolled, probe arms a self-restarting cycle: at91vbustimer schedules vbustimerwork, and at91vbustimerwork calls...

AZL-100683 CVE-2026-89736 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uaudio: Fix use-after-free on sound card disconnect gaudiocleanup invokes sndcardfreewhenclosed to initiate sound card teardown and immediately frees the underlying struct snduacchip context. However,...

DEBIAN-CVE-2026-89735

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: midi2: remove default configfs groups on teardown fmidi2allocinst creates default configfs child groups for the default endpoint and default block using configfsadddefaultgroup, setting their internal refcount to 1...

DEBIAN-CVE-2026-89733

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: fix dangling pointers in uvcfunctionbind and uvcfunctionunbind In uvcfunctionbind error path, we use usbepfreerequest which uses uvc-controlreq but does not set it to NULL afterwards. Thus, uvc-controlreq is a...