UBUNTU-CVE-2026-98695

In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix ioctl hangup race The tty ioctls can race with hangup and end up calling into a tty driver for a device that is already gone or powered down. Serialise the callbacks using the tty port mutex and add the missing...

UBUNTU-CVE-2026-98516

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: Fix bridge reference leak in nv1aramnew pcigetdomainbusandslot takes a reference to the PCI device, which is never released once the memory size has been read from its config space. Drop the reference before returnin...

UBUNTU-CVE-2026-98555

In the Linux kernel, the following vulnerability has been resolved: llc: fix skb UAF and leaks on llcmachdrinit failure In llcconnacresendixxxxset0orsendrr, if llcmachdrinit fails, kfreeskbskb is called instead of kfreeskbnskb. This leaks the newly allocated nskb, reads from the freed skb via...

UBUNTU-CVE-2026-98809

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: don't drain cmdsync backlog on unregister hciunregisterdev disables cmdwork and cmdtimer, then calls hcicmdsyncclear, whose cancelworksync waits for hcicmdsyncwork to return. That worker dequeues and runs ever...

CVE-2026-98549

In the Linux kernel, the following vulnerability has been resolved: tcp: prevent collapsing skbs across boundary in rtx queue tcpwritecollapsefence sets TCPSKBCBskb-eor = 1 on tcpwritequeuetailsk to prevent skbs queued after a switch to device encryption from being collapsed into earlier skbs. Th...

UBUNTU-CVE-2026-98778

In the Linux kernel, the following vulnerability has been resolved: binder: fix isfailure flag for superseded transaction cleanup When a TFUPDATETXN transaction supersedes a pending async transaction, binderreleaseentirebuffer is called with isfailure=false. Since the superseded transaction was...

UBUNTU-CVE-2026-98549

In the Linux kernel, the following vulnerability has been resolved: tcp: prevent collapsing skbs across boundary in rtx queue tcpwritecollapsefence sets TCPSKBCBskb-eor = 1 on tcpwritequeuetailsk to prevent skbs queued after a switch to device encryption from being collapsed into earlier skbs. Th...

UBUNTU-CVE-2026-98737

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Fix inquiry cache use-after-free The sync command worker holds hdev-reqlock, but inquiry-cache updates and flushes use hdev-lock. Both hciaclcreateconnsync and hcistopdiscoverysync look up entries and read the...

UBUNTU-CVE-2026-98822

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: prevent AP VLAN tx from other interfaces Since the station lookup was factored out of ieee80211buildhdr, ieee80211lookuprasta uses stainfogetbss for all AP and AP VLAN frames, not only for control port frames. A...

UBUNTU-CVE-2026-98526

In the Linux kernel, the following vulnerability has been resolved: llc: reserve device headroom for allocated frames llcallocframe reserves link-layer headroom using the device type. This is insufficient for stacked Ethernet devices such as VLAN devices, where vlandevhardheader pushes a VLAN...

UBUNTU-CVE-2026-98541

In the Linux kernel, the following vulnerability has been resolved: fou: reject omitted FOUATTRIPPROTO on FOUENCAPDIRECT Commit 7a9bc9e3f423 "fou: Don't allow 0 for FOUATTRIPPROTO." added NLAPOLICYMINNLAU8, 1 to founlpolicyFOUATTRIPPROTO, which rejects an explicitly supplied FOUATTRIPPROTO == 0...

UBUNTU-CVE-2026-98625

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: publish HWDEAD after worker is done flowoffloadworkdel sets NFFLOWHWDEAD before the work handler clears NFFLOWHWPENDING. Once a flow is both HWDYING and HWDEAD, a concurrent garbage collection pass can remov...

UBUNTU-CVE-2026-98646

In the Linux kernel, the following vulnerability has been resolved: tcp: Skip condresched in inetcsklistenstop under BPF context bpfsockdestroy runs from the tcp iterator, under rcureadlock. If the sock is a listener that still has children in its accept queue, tcpabort ends up in inetcsklistenst...

UBUNTU-CVE-2026-98782

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix ovl adaptor platform device leak mtkdrmprobe creates an OVL adaptor platform device with platformdeviceregisterdata when the display pipeline requires the OVL adaptor. If a later initialization step fails, the...

UBUNTU-CVE-2026-98709

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: count only matching reservations in reserved switch ieee80211vifusereservedswitch validates a replacement by counting assigned links on ctx-replacectx and treating reservations too broadly. A link can still be...

CVE-2026-98491

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up committing both but with different sets of extensions. The series of events: 1...

UBUNTU-CVE-2026-98521

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix incorrect RCU teardown order i915gembusyioctl uses dmaresvforeachfenceunlocked to iterate over the fences in an GEM object without holding a reference but only the RCU read side lock. What can happen here is that th...

UBUNTU-CVE-2026-98756

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: Fix NULL pointer dereference in cdns3pciprobe The Cadence USBSS controller is a two-function PCI device. The first probed function allocates the driver data and stores it with pcisetdrvdata, while the second function...

UBUNTU-CVE-2026-98859

In the Linux kernel, the following vulnerability has been resolved: HID: multitouch: stop the release timer from being rearmed on remove mtremove quiesces the sticky-finger timer before stopping the hardware: timerdeletesync&td-releasetimer; sysfsremovegroup&hdev-dev.kobj, &mtattributegroup;...

UBUNTU-CVE-2026-98717

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Bail from shadow walks if the root is invalid or a dummy When walking shadow page tables, immediately terminate the walk if the root is a "dummy" root, i.e. a root whose top-level page table is backed by the zero...