ALSA-2026:42550 Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: RDMA/mana: Remove user triggerable WARNON in manaibcreateqprss CVE-2026-46117 kernel: Bluetooth: l2cap: Add missing chan lock in...

CVE-2026-64206

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx takes the same mutex, so teardown can deadlock against the worker it is...

CVE-2026-64206

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx takes the same mutex, so teardown can deadlock against the worker it is...

EUVD-2026-46014

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx takes the same mutex, so teardown can deadlock against the worker it is...

CVE-2026-64206 Bluetooth: L2CAP: cancel pending_rx_work before taking conn->lock

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx takes the same mutex, so teardown can deadlock against the worker it is...

CVE-2026-64206

Summary of CVE-2026-64206 : In the Linux kernel Bluetooth L2CAP subsystem, teardown can deadlock due to a circular lock between l2cap_conn_del() and process_pending_rx(). Specifically, l2cap_conn_del() takes conn->lock and then cancels pending_rx_work, while process_pending_rx() may contend fo...

CVE-2026-64206 Bluetooth: L2CAP: cancel pending_rx_work before taking conn->lock

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx takes the same mutex, so teardown can deadlock against the worker it is...

CVE-2026-64206

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx takes the same mutex, so teardown can deadlock against the worker it is...

Linux Distros Unpatched Vulnerability : CVE-2026-64062

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: netfs: Fix potential deadlock in write-through mode Fix netfsadvancewritethrough to always...

Linux Distros Unpatched Vulnerability : CVE-2026-64100

"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: drm/msm: Fix shrinker deadlock With PROVELOCKING on an Snapdragon X1 and VM reclaim pressur...

Linux Distros Unpatched Vulnerability : CVE-2026-64206

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: L2CAP: cancel pendingrxwork before taking conn-lock l2capconndel takes conn-lock and then calls cancelworksync for pendingrxwork. processpendingrx...

Linux Distros Unpatched Vulnerability : CVE-2026-64177

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock ma...

PT-2026-61647

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur in the Bluetooth L2CAP layer during connection teardown. The function l2cap conn del acquires the conn-lock mutex and subsequently calls cancel work sync for pending...

CVE-2026-64177

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock may have packets stored in the backlog and processed later from process...

CVE-2026-64129

In the Linux kernel, the following vulnerability has been resolved: mm/migratedevice: fix spinlock leak in migratevmainserthugepmdpage When checkstableaddressspace fails after the PMD spinlock has been acquired via pmdlock, the code jumps directly to the abort label, bypassing the spinunlock call...

CVE-2026-64100

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix shrinker deadlock With PROVELOCKING on an Snapdragon X1 and VM reclaim pressure, we see: ====================================================== WARNING: possible circular locking dependency detected 7.0.0-debug+ 43...

CVE-2026-64062

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential deadlock in write-through mode Fix netfsadvancewritethrough to always unlock the supplied folio and to mark it dirty if it isn't yet written to the end. Unfortunately, it can't be marked for writeback until t...

CVE-2026-63980

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Use spinlockbh for hnlock nvmettcpstatechange, a socket callback that runs in BH context, can reach handshakereqcancel via nvmettcpschedulereleasequeue and tlshandshakecancel. handshakereqcancel acquires hn-hnlock...

CVE-2026-64177

CVE-2026-64177 is a Linux kernel vulnerability in the Phonet protocol (pep) handling where forwarding of skb to a child socket via sk_receive_skb() incorrectly acquires the child socket lock with BH enabled in the softirq path. The root cause is a BH state mismatch between softirq and process pat...

CVE-2026-64177

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock may have packets stored in the backlog and processed later from process...