UBUNTU-CVE-2026-68264

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Reset currentop in xeptupdateopsinit xeptupdateopsinit fails to reset currentop to 0. On the vmbind path, opsexecute calls xeptupdateopsprepare inside the xevalidationguard / drmexecuntilalllocked loop. When that loop...

UBUNTU-CVE-2026-68181

In the Linux kernel, the following vulnerability has been resolved: mei: bus: access meidevice under devicelock on cleanup Fix couple of problems in meiclbusdevrelease: meiclflushqueues is running without lock. bus-filelist access after meidevbusputbus can become a use-after-free if this was the...

UBUNTU-CVE-2026-68260

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: acquire vmctx-lock before mapping memory to GPU VM The drm gpuvm code doesn't protect find operation against map operation, and the driver needs to ensure a map operation shouldn't happen when a find operation is...

UBUNTU-CVE-2026-68405

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

UBUNTU-CVE-2026-68347

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix IRQ unsafe locking in gdom allocation Lockdep complains: 259.410489 ===================================================== 259.417287 WARNING: HARDIRQ-safe - HARDIRQ-unsafe lock order detected 259.424667...

UBUNTU-CVE-2026-68390

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold hdev-lock for hciconnparams lookups hciconnparamslookup requires hdev-lock be held, otherwise the list iteration or param access is not safe. Hold hdev-lock for params lookups in hcisync...

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-2026-68364

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix ISM dclock deadlock during suspend Why System hang observed during suspend/resume while video is playing. amdgpudmismdisable is called under dclock and waits for ISM delayed work via disabledelayedworksync. T...

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...

UBUNTU-CVE-2026-68094

In the Linux kernel, the following vulnerability has been resolved: schedext: Preserve rq tracking across local DSQ dispatch dispatchtolocaldsq can run from scxbpfdsqmovetolocal while ops.dispatch has recorded the current rq. Moving a task to a local DSQ may switch to the source or destination rq...

EUVD-2026-55591

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

CVE-2026-68405 wifi: mac80211: free AP_VLAN bc_buf SKBs outside IRQ lock

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

CVE-2026-68405 wifi: mac80211: free AP_VLAN bc_buf SKBs outside IRQ lock

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

CVE-2026-68393 Bluetooth: hci_sync: extend conn_hash lookup critical sections

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...

CVE-2026-68392

Summary: CVE-2026-68392 affects the Linux kernel Bluetooth management path. The vulnerability arises from dereferencing RCU-protected pointers outside critical sections during unpair_device/disconnect_sync, enabling a Use-After-Free (UAF) scenario. The fix targets the critical section handling fo...

CVE-2026-68391 Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hciconn in mgmtpendingcmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hciconn in hcisync callbacks also needs to hold refcount to avoi...

CVE-2026-68390 Bluetooth: hci_sync: hold hdev->lock for hci_conn_params lookups

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold hdev-lock for hciconnparams lookups hciconnparamslookup requires hdev-lock be held, otherwise the list iteration or param access is not safe. Hold hdev-lock for params lookups in hcisync...

EUVD-2026-55576

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold hdev-lock for hciconnparams lookups hciconnparamslookup requires hdev-lock be held, otherwise the list iteration or param access is not safe. Hold hdev-lock for params lookups in hcisync...

CVE-2026-68390

The CVE-2026-68390 affects the Linux kernel Bluetooth subsystem (hci_sync), where hci_conn_params_lookup must hold hdev->lock during list iterations and parameter access. The issue could allow unsafe access and potentially data corruption or system instability if the lock is not held. The vuln...

CVE-2026-68387

The CVE-2026-68387 defect affects the Linux kernel CAN raw socket path. A change to store flags in a single bitfield (struct raw_sock) introduced a read-modify-write window during raw_setsockopt() flag updates, enabling concurrent access races. The fix adds a locking wrapper around flag manipulat...