CVE-2026-80923

CVE-2026-80923 is a use-after-free in the Linux kernel's xhci dbgtty driver. When tty_register_driver() fails during module initialization, the driver reference is dropped but the global dbc_tty_driver pointer is left dangling (not set to NULL). Upon module unload, dbc_tty_exit() sees the non-NUL...

EUVD-2026-75100

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

CVE-2026-80923 xhci: dbgtty: Fix unregister on tty_register_driver() failure

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

AZL-99639 CVE-2026-80861 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very first register: xhci-opregs = hcd-regs +...

AZL-99405 CVE-2026-80830 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: usb: core: Add lock to usbwakeupnotification Add a spin lock to usbwakeup notification to prevent a race condition with dereferencing freed memory. This could be hit by the xHCI driver as it calls this function from an IRQ and...

CVE-2026-80830

In the Linux kernel, the following vulnerability has been resolved: usb: core: Add lock to usbwakeupnotification Add a spin lock to usbwakeup notification to prevent a race condition with dereferencing freed memory. This could be hit by the xHCI driver as it calls this function from an IRQ and...

CVE-2026-80861 usb: xhci: bail out of setup if the controller is inaccessible

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very first register: xhci-opregs = hcd-regs +...

CVE-2026-80861

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very first register: xhci-opregs = hcd-regs +...

CVE-2026-80861

CVE-2026-80861 is a vulnerability in the Linux kernel xHCI USB host controller driver (specifically the xhci-pci-renesas path). The root cause is in xhci_gen_setup(): when a USB controller (e.g., Renesas uPD720201 ) is dead or has dropped off the bus, the capability register read returns all-ones...

EUVD-2026-71311

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very first register: xhci-opregs = hcd-regs +...

CVE-2026-80830 usb: core: Add lock to usb_wakeup_notification()

In the Linux kernel, the following vulnerability has been resolved: usb: core: Add lock to usbwakeupnotification Add a spin lock to usbwakeup notification to prevent a race condition with dereferencing freed memory. This could be hit by the xHCI driver as it calls this function from an IRQ and...

CVE-2026-80830

This vulnerability affects the Linux kernel USB core subsystem, specifically the usb_wakeup_notification() function, which lacked a spin lock. The xHCI driver calls this function from IRQ context, creating a race condition with hub_disconnect() that can lead to dereferencing freed memory (use-aft...

CVE-2026-80830 usb: core: Add lock to usb_wakeup_notification()

In the Linux kernel, the following vulnerability has been resolved: usb: core: Add lock to usbwakeupnotification Add a spin lock to usbwakeup notification to prevent a race condition with dereferencing freed memory. This could be hit by the xHCI driver as it calls this function from an IRQ and...

Linux Distros Unpatched Vulnerability : CVE-2026-80861

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: xhci: bail out of setup if the controller is inaccessible xhcigensetup locates the operational registers using the capability length read from the very...

Linux Distros Unpatched Vulnerability : CVE-2026-80830

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: core: Add lock to usbwakeupnotification Add a spin lock to usbwakeup notification to prevent a race condition with dereferencing freed memory. This could b...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098753)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098753 advisory. In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Fix isochronous Ring Underrun/Overrun event handling The TRB pointer of these events...

Astra Linux – Vulnerability in Qemu

QEMU 5.0.0 has a use-after-free issue in the hw/usb/hcd-xhci.c file, as the return value of usbpacketmap is not checked...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Error handling was added in xhcimapurbfordma. Currently, xhcimapurbfordma creates a temporary buffer and copies the SG list to the new linear buffer. However, if kzallocnode fails, the call to sgpcopytobuffer may lead ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: xhci-mtk: Fixed an issue where shared HCD resources were leaked when attempting to set the wake-up IRQ. The issue occurred because it was not possible to set @sharedhcd to NULL before reducing the usage count using usbputhcd...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: xhci: Fixed null pointer dereferencing when the host dies. Ensure that xhcifreedev and xhcikillendpointurbs do not race with each other, and thus avoid null pointer dereferencing when the host suddenly dies. The USB core may...