UBUNTU-CVE-2026-68266

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Hold a dma-buf reference for imported BOs An imported dma-buf BO is created as a ttmbotypesg BO whose reservation object is the exporter's dmabuf-resv. The importer, however, only takes a dma-buf reference after a...

UBUNTU-CVE-2026-68424

In the Linux kernel, the following vulnerability has been resolved: mtd: virtconcat: fix use-after-free in mtdvirtconcatdestroyjoins mtdconcatdestroy frees item-concat so calling mtdvirtconcatputmtddevicesitem-concat leads to a use after free. Fix this by moving mtdvirtconcatputmtddevices before...

UBUNTU-CVE-2026-68334

In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix iothread race in rxrpcwakeupiothread rxrpcwakeupiothread checks local-iothread before waking it, but then reloads the pointer for wakeupprocess. local-iothread is cleared with WRITEONCE when the I/O thread exits, so th...

UBUNTU-CVE-2026-68398

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

UBUNTU-CVE-2026-68318

In the Linux kernel, the following vulnerability has been resolved: pdscore: fix use-after-free on workqueue during remove In pdscremove, the workqueue is destroyed before pdscteardown is called. This ordering allows two paths to queue work on the destroyed workqueue: 1. If pdscteardown -...

UBUNTU-CVE-2026-68404

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: use wiphy work for socket owner autodisconnect nl80211netlinknotify walks the cfg80211 wireless device list when a NETLINKGENERIC socket is released. If the socket owns a connection, the notifier queues the embedd...

UBUNTU-CVE-2026-68273

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix context pstate override handling There are several problems in the context pstate handling code. The most serious ones are potential use-after-free and NULL pointer dereferences at context initialization time. Bot...

UBUNTU-CVE-2026-68332

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Fix potential use-after-free in airohappedeinit airohappedeinit replaces the NPU pointer with NULL via rcureplacepointer but does not wait for existing RCU readers to exit before calling ppedeinit and airohanpuput...

UBUNTU-CVE-2026-68329

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Wait for completion instead of returning early in iommucompletionwait needsync is a per-IOMMU flag shared by all domains and devices behind that IOMMU. It is set whenever a command is queued with sync == true and clear...

UBUNTU-CVE-2026-68323

In the Linux kernel, the following vulnerability has been resolved: tipc: serialize udp bearer replicast list updates tipcudprcastadd and cleanupbearer both update ub-rcast.list with listaddrcu / listdelrcu, but nothing serializes them. The add runs from the encap receive softirq via...

UBUNTU-CVE-2026-68335

In the Linux kernel, the following vulnerability has been resolved: rds: drop incoming messages that cross network namespace boundaries rdsfindbound looks up the destination socket using a global rhashtable keyed solely on addr, port, scopeid. Network namespaces are not part of the key, so a send...

CVE-2026-68169

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: userspace: fix use-after-free in getlocalid In mptcppmuserspacegetlocalid, the address entry is looked up under spinlock, but its id is read after dropping the lock. A concurrent deletion can free the entry between the...

CVE-2026-68266

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Hold a dma-buf reference for imported BOs An imported dma-buf BO is created as a ttmbotypesg BO whose reservation object is the exporter's dmabuf-resv. The importer, however, only takes a dma-buf reference after a...

UBUNTU-CVE-2026-68372

In the Linux kernel, the following vulnerability has been resolved: usb: core: port: Deattach Type-C connector on component unbind connectorunbind is the mirror of connectorbind, but it is missing the symmetric call to typecdeattach that connectorbind makes via: if portdev-child...

UBUNTU-CVE-2026-68415

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear mode callbacks after failed mode setup xfrmstategctask can run long after a failed IPTFS state setup. In the reproduced case, xfrminitstate cached x-modecbs, IPTFS setup returned -ENOMEM before publishing modedata, an...

UBUNTU-CVE-2026-68383

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Keep scheduler timeline name alive The scheduler keeps a pointer to the timeline name, but q-name is freed with the exec queue while scheduler fences can still reference it. Store the name in struct xegucexecqueue so ...

UBUNTU-CVE-2026-68393

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: extend connhash lookup critical sections Using RCU-protected pointers outside the critical sections without refcount is incorrect and may result to UAF. Extend critical section to cover both hciconnhash lookup...

UBUNTU-CVE-2026-68394

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: revalidate LOADCONNPARAM queued update MGMTOPLOADCONNPARAM queues connupdatesync when a single parameter update changes an existing LE central connection. The queued work currently stores a borrowed hciconnparams...

CVE-2026-68138

In the Linux kernel, the following vulnerability has been resolved: net/sched: serialize qdiscrtablist against concurrent get/put qdiscgetrtab and qdiscputrtab mutate the process-global singly linked list qdiscrtablist and a plain non-atomic 'int refcnt' with no lock. This was only safe because...

CVE-2026-68137

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free in x25killbyneigh x25killbyneigh walks the global X.25 socket list looking for sockets attached to a terminating neighbour. x25listlock protects list membership while the lookup is in progress, but it...