CVE-2026-10647 Deadlock denial of service in USB CDC-NCM device class on TX enqueue failure

The USB CDC-NCM device class subsys/usb/devicenext/class/usbdcdcncm.c ignores the return value of usbdepenqueue in its ethernet transmit callback cdcncmsend. When the enqueue fails, the function still calls ksemtake&data-syncsem, KFOREVER, blocking on a completion semaphore that is only ever...

CVE-2026-10647

The CVE concerns the USB CDC-NCM driver (subsys/usb/device_next/class/usbd_cdc_ncm.c) in Zephyr. The code ignores the return value of usbd_ep_enqueue() in cdc_ncm_send(); when enqueue fails, it still calls k_sem_take(&data-sync_sem, K_FOREVER), waiting on a completion that is only signaled from t...

CVE-2026-10647 Deadlock denial of service in USB CDC-NCM device class on TX enqueue failure

The USB CDC-NCM device class subsys/usb/devicenext/class/usbdcdcncm.c ignores the return value of usbdepenqueue in its ethernet transmit callback cdcncmsend. When the enqueue fails, the function still calls ksemtake&data-syncsem, KFOREVER, blocking on a completion semaphore that is only ever...

CVE-2026-10647

The USB CDC-NCM device class subsys/usb/devicenext/class/usbdcdcncm.c ignores the return value of usbdepenqueue in its ethernet transmit callback cdcncmsend. When the enqueue fails, the function still calls ksemtake&data-;syncsem, KFOREVER, blocking on a completion semaphore that is only ever...

EUVD-2026-40235

The USB CDC-NCM device class subsys/usb/devicenext/class/usbdcdcncm.c ignores the return value of usbdepenqueue in its ethernet transmit callback cdcncmsend. When the enqueue fails, the function still calls ksemtake&data-syncsem, KFOREVER, blocking on a completion semaphore that is only ever...

CVE-2026-53122

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between reflink and transaction commit when using flushoncommit When using the flushoncommit mount option, we can have a deadlock between a transaction commit and a reflink operation that copied an inline exte...

CVE-2026-53323

A flaw was found in the Linux kernel's Distributed Switch Architecture DSA subsystem. Redundant locking operations within the DSA conduit ethtool wrappers can lead to a deadlock. A local attacker can exploit this by using the ethtool -i command, causing the system to become unresponsive and...

PT-2026-53748

Name of the Vulnerable Software and Affected Versions Zephyr versions prior to 4.4.0 Description The USB CDC-NCM device class contains a flaw where the cdc ncm send function ignores the return value of usbd ep enqueue. If the enqueue operation fails—which occurs when the USB bus is suspended,...

CVE-2026-10647: Deadlock

The USB CDC-NCM device class subsys/usb/devicenext/class/usbdcdcncm.c ignores the return value of usbdepenqueue in its ethernet transmit callback cdcncmsend. When the enqueue fails, the function still calls ksemtake&data-syncsem, KFOREVER, blocking on a completion semaphore that is only ever...

SUSE CVE-2026-53323

In the Linux kernel, the following vulnerability has been resolved: net: dsa: remove redundant netdevlockops from conduit ethtool ops DSA replaces the conduit master device's ethtoolops with its own wrappers that aggregate stats from both the conduit and DSA switch ports. Taking the lock again...

Linux Distros Unpatched Vulnerability : CVE-2026-53166

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - futex/requeue: Prevent NULL pointer dereference in removewaiter on self-deadlock When FUTEXCMPREQUEUEPI requeues a non-top waiter that already owns the target P...

Linux Distros Unpatched Vulnerability : CVE-2026-53085

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: fix mm lifecycle in open-coded taskvma iterator The open-coded taskvma iterator reads task-mm locklessly and acquires mmapreadtrylock but never calls mmget...

Linux Distros Unpatched Vulnerability : CVE-2026-53231

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: phy: don't try to setup PHY- driven SFP cages when using genphy We don't have support f...

Linux Distros Unpatched Vulnerability : CVE-2026-53163

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - locking/rtmutex: Skip removewaiter when waiter is not enqueued syzbot triggered the following splat in removewaiter via FUTEXCMPREQUEUEPI: KASAN: null-ptr-deref...

Linux Distros Unpatched Vulnerability : CVE-2026-53207

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/memory-failure: fix hugetlblock AA deadlock in gethugepageforhwpoison Two concurrent madviseMADVHWPOISON calls on the same hugetlb page can trigger a recursi...

Linux Distros Unpatched Vulnerability : CVE-2026-53123

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - md: wake raid456 reshape waiters before suspend During raid456 reshape, direct IO across the reshape position can sleep in raid5makerequest waiting for reshape...

HID: usbhid: fix deadlock in hid_post_reset()

...

bpf, sockmap: Fix af_unix iter deadlock

...

mm/memory-failure: fix hugetlb_lock AA deadlock in get_huge_page_for_hwpoison

...

SUSE CVE-2026-53101

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix potential deadlock in mt7921rocabortsync rocabortsync can deadlock with rocwork. rocwork holds dev-mt76.mutex, while cancelworksync waits for rocwork to finish. If the caller already owns the same mutex,...