UBUNTU-CVE-2026-74325

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: use kfreercu for offchannel link in mt76putvifphylink mt76putvifphylink frees the offchannel mlink with plain kfree after rcuassignpointerNULL. However, rcuassignpointer only prevents future RCU readers from obtaining...

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...

CVE-2026-68396

In the Linux kernel, the following vulnerability has been resolved: scsi: core: wake eh reliably when using scsischeduleeh Drivers which use the scsischeduleeh function to run the error handler currently risk the error handler thread never waking once all commands are timed out or inactive. There...

CVE-2026-68391

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-2026-68392

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpairdevice/disconnectsync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev-lock for hciconn lookup and hciabortconn. Don't use RCU to ensur...

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...

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...

EUVD-2026-55595

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: defer link RX stats percpu free to RCU staremovelink frees a removed MLO link's RX stats percpu buffer right away, but defers only the link container to RCU: stainfofreelink&alloc-info; kfreercualloc, rcuhead; The...

CVE-2026-68409 wifi: mac80211: defer link RX stats percpu free to RCU

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: defer link RX stats percpu free to RCU staremovelink frees a removed MLO link's RX stats percpu buffer right away, but defers only the link container to RCU: stainfofreelink&alloc-info; kfreercualloc, rcuhead; The...

CVE-2026-68398 ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF

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...

EUVD-2026-55579

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-2026-68393

The CVE-2026-68393 entry concerns the Linux kernel Bluetooth hci_sync component. The root cause is the use of RCU-protected pointers outside their critical sections without proper reference counting, which could lead to a Use-After-Free (UAF). The fix extends the critical section to cover both th...

CVE-2026-68392 Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpairdevice/disconnectsync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev-lock for hciconn lookup and hciabortconn. Don't use RCU to ensur...

CVE-2026-68383 drm/xe/guc: Keep scheduler timeline name alive

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 ...

EUVD-2026-55433

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...

CVE-2026-68332

The CVE concerns a Linux kernel net/airoha issue where airoha_ppe_deinit() replaces the NPU pointer with NULL via rcu_replace_pointer() but does not wait for existing RCU readers, risking use-after-free when a reader still holds a reference. The fix adds synchronize_rcu() before ppe_deinit() to e...

CVE-2026-68126 mac802154: hold an interface reference across the scan worker

In the Linux kernel, the following vulnerability has been resolved: mac802154: hold an interface reference across the scan worker mac802154scanworker captures the scanning sub-interface under RCU and then keeps dereferencing sdata-dev after rcureadunlock and outside the rtnl -- in the failure...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: hwrng: core – Use RCU and workstruct to fix race conditions Currently, the hwrngfill function is not cleared until the hwrngfillfn thread exits. Since hwrngunregister reads hwrngfill outside of the rngmutex lock, a concurrent...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: md: fixed rcu protection in mdwakeupthread We attempted to use RCU to protect the pointer “thread”, but passed the value directly when calling mdwakeupthread. This means that the RCU pointer was acquired before rcureadlock was...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: ath11k: Fixed an issue where the RCU stall occurred during the processing of the monitor destination ring. During this process, MSDUs are retrieved from the link descriptor based on the corresponding bufid. However,...