Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent deadlock during ep0 read loop Currently, the ffsep0read function holds ffs-mutex when it prepares to go to sleep and wait for an event. When no setup events are pending, it calls...

UBUNTU-CVE-2026-89732

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

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...

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...

PT-2026-96361

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...

PT-2026-90448

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur in the USB gadget functionfs module when a userspace daemon polls ep0 via a read operation while the gadget is asynchronously torn down via configfs. The issue arise...

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...

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,...

PT-2025-13297

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Linux kernel during fast composition switch, potentially allowing a use-after-free scenario. This occurs when ffs ep0 write or ffs ep0 read calls ffs ep0...