CVE-2026-89732 usb: gadget: f_fs: Prevent deadlock during ep0 read loop

In the Linux kernel, the following vulnerability has been resolved: 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 setup events are pending, it calls waiteventinterruptibleexclusivelockedi...

EUVD-2026-76644

In the Linux kernel, the following vulnerability has been resolved: 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 setup events are pending, it calls waiteventinterruptibleexclusivelockedi...

CVE-2026-89732 usb: gadget: f_fs: Prevent deadlock during ep0 read loop

In the Linux kernel, the following vulnerability has been resolved: 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 setup events are pending, it calls waiteventinterruptibleexclusivelockedi...

PT-2026-90448

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f fs: Prevent deadlock during ep0 read loop Currently, ffs ep0 read holds ffs-mutex when it prepares to go to sleep waiting for an event. When no setup events are pending, it calls wait event interruptible exclusive...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent race during ffsep0queuewait When performing fast composition switching, there is a possibility that the process of ffsep0write/ffsep0read may enter a race condition due to ep0req being freed from the...

SUSE CVE-2026-63895

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: copy only received bytes on short ep0 read ffsep0read allocates its control-OUT data buffer with kmalloc not kzalloc at the Length value from the Setup packet, then copies that full len to userspace regardless o...

CVE-2026-63895

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: copy only received bytes on short ep0 read ffsep0read allocates its control-OUT data buffer with kmalloc not kzalloc at the Length value from the Setup packet, then copies that full len to userspace regardless o...

CVE-2026-63895

Summary: CVE-2026-63895 affects the Linux kernel's FunctionFS (f_fs) gadget driver. The bug occurs in ffs_ep0_read(), where a control-OUT request’s data buffer is allocated with kmalloc(len) and then fully copied to userspace via copy_to_user(buf, data, len) even when only ret bytes were actually...

CVE-2026-63895 usb: gadget: f_fs: copy only received bytes on short ep0 read

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: copy only received bytes on short ep0 read ffsep0read allocates its control-OUT data buffer with kmalloc not kzalloc at the Length value from the Setup packet, then copies that full len to userspace regardless o...

PT-2026-61212

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the f fs gadget driver where the ffs ep0 read function allocates a control-OUT data buffer using kmalloc based on the length specified in the Setup packet. When a shor...

SUSE CVE-2025-68287

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: Fix race condition between concurrent dwc3removerequests call paths This patch addresses a race condition caused by unsynchronized execution of multiple call paths invoking dwc3removerequests, leading to premature...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988993)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988993 advisory. In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextod...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-988808)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988808 advisory. In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent race during ffsep0queuewait While performing fast composition switch,...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987210)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987210 advisory. In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextod...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986556)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986556 advisory. In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextod...

Vulnerability of the dwc3_wIndex_to_dep() function in the drivers/usb/dwc3/ep0.c module – The USB device driver support module in the Linux kernel allows a hacker to trigger a service failure.

Vulnerability of the dwc3wIndextodep function in the drivers/usb/dwc3/ep0.c module – The Linux kernel’s USB device support driver relies on the assignment of the NULL pointer. Exploiting this vulnerability could allow an attacker to cause a service failure...

SUSE CVE-2022-49755

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent race during ffsep0queuewait While performing fast composition switch, there is a possibility that the process of ffsep0write/ffsep0read get into a race condition due to ep0req being freed up from...

OESA-2024-1678 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextodep and we might be referring a non-existing ep and trigger a NUL...

SUSE CVE-2021-47269

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextodep and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer ep...

DEBIAN-CVE-2021-47269

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextodep and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer ep...