CVE-2026-90586

The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread-arch.ptables during thread setup, while archmemdomainthreadadd in arch/xtensa/core/ptables.c uses a non-NULL value of that field as its "this thread is migrating from another memory domain" predicate. For a...

CVE-2026-90586 Xtensa MMU userspace: uninitialized thread page-table pointer leads to out-of-bounds supervisor-mode writes

The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread-arch.ptables during thread setup, while archmemdomainthreadadd in arch/xtensa/core/ptables.c uses a non-NULL value of that field as its "this thread is migrating from another memory domain" predicate. For a...

CVE-2026-90586

The Zephyr RTOS Xtensa MMU userspace port is vulnerable to an uninitialized pointer issue because the thread->arch.ptables pointer is not initialized during thread setup. The function arch_mem_domain_thread_add() in arch/xtensa/core/ptables.c treats a non-NULL value in this field as a predicat...

CVE-2026-90586 Xtensa MMU userspace: uninitialized thread page-table pointer leads to out-of-bounds supervisor-mode writes

The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread-arch.ptables during thread setup, while archmemdomainthreadadd in arch/xtensa/core/ptables.c uses a non-NULL value of that field as its "this thread is migrating from another memory domain" predicate. For a...

CVE-2026-90586: zephyrproject zephyr: The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread->arch.ptables during thread…

The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread-arch.ptables during thread setup, while archmemdomainthreadadd in arch/xtensa/core/ptables.c uses a non-NULL value of that field as its "this thread is migrating from another memory domain" predicate. For a...

PT-2026-141162

The Xtensa MMU userspace port never initialized the per-thread page-table pointer thread-arch.ptables during thread setup, while arch mem domain thread add in arch/xtensa/core/ptables.c uses a non-NULL value of that field as its "this thread is migrating from another memory domain" predicate. For...

GoTEE-example

Introduction The GoTEE framework implements concurrent instantiation of TamaGo based unikernels in privileged and unprivileged modes, interacting with each other through monitor mode and custom system calls. With these capabilities GoTEE implements a TamaGo based Trusted Execution Environments TE...

CVE-2026-19676

The user-mode verifier for the pecitransfer system call, zvrfypecitransfer in drivers/peci/pecihandlers.c, checked only the device object permission and copied the caller-supplied struct pecimsg with kusermodefromcopy. That copy validates the outer structure only; the buf pointers and len values...

CVE-2026-19676 PECI transfer syscall verifier does not validate embedded user buffer pointers, allowing arbitrary kernel memory read/write from user mode

The user-mode verifier for the pecitransfer system call, zvrfypecitransfer in drivers/peci/pecihandlers.c, checked only the device object permission and copied the caller-supplied struct pecimsg with kusermodefromcopy. That copy validates the outer structure only; the buf pointers and len values...

CVE-2026-19676 PECI transfer syscall verifier does not validate embedded user buffer pointers, allowing arbitrary kernel memory read/write from user mode

The user-mode verifier for the pecitransfer system call, zvrfypecitransfer in drivers/peci/pecihandlers.c, checked only the device object permission and copied the caller-supplied struct pecimsg with kusermodefromcopy. That copy validates the outer structure only; the buf pointers and len values...

EUVD-2026-107481

The user-mode verifier for the pecitransfer system call, zvrfypecitransfer in drivers/peci/pecihandlers.c, checked only the device object permission and copied the caller-supplied struct pecimsg with kusermodefromcopy. That copy validates the outer structure only; the buf pointers and len values...

CVE-2026-19676

The peci_transfer() system call in the Zephyr RTOS (specifically within drivers/peci/peci_handlers.c ) fails to properly validate embedded buffer pointers and length values in the peci_msg structure. While the verifier checks outer structure permissions, it allows caller-controlled pointers in th...

CVE-2026-19595

The user-mode syscall verifier zvrfyrtiocqegetmempoolbuffer in subsys/rtio/rtiosyscalls.c validated its two output parameters, buff and bufflen, with KSYSCALLMEMORYREAD rather than KSYSCALLMEMORYWRITE. Both are pure out-parameters: zimplrtiocqegetmempoolbuffer stores the mempool buffer address an...

CVE-2026-19575

The user-mode verification handler for the devicedeinit system call, zvrfydevicedeinit in kernel/device.c, validated its dev argument with KSYSCALLOBJINITdev, KOBJANY. kobjectvalidate short-circuits its type comparison when the requested type is KOBJANY, so the check reduced to "this pointer is t...

EUVD-2026-95530

The user-mode verification handler for the devicedeinit system call, zvrfydevicedeinit in kernel/device.c, validated its dev argument with KSYSCALLOBJINITdev, KOBJANY. kobjectvalidate short-circuits its type comparison when the requested type is KOBJANY, so the check reduced to "this pointer is t...

CVE-2026-19184: Out-of-bounds Write

The NXP GAU ADC driver drivers/adc/adcmcuxgauadc.c validated the caller-supplied sequence-buffersize, which is expressed in bytes, against the number of active channels, which is a sample count. It then stored that byte count directly in data-resultslength and used it in mcuxgauadcreadsamples as...

CVE-2026-17053

The Zephyr RTOS SMBus driver API contains a vulnerability where smbus_smbalert_remove_cb() and smbus_host_notify_remove_cb() are exposed as syscalls. These syscalls fail to perform K_SYSCALL_MEMORY_READ/WRITE validation on the caller-supplied struct smbus_callback *cb pointer, forwarding it direc...

CVE-2026-17053

The SMBus driver API exposed smbussmbalertremovecb and smbushostnotifyremovecb as Zephyr syscalls. Their verifiers in drivers/smbus/smbushandlers.c validated only the dev argument with KSYSCALLOBJdev, KOBJDRIVERSMBUS and forwarded the caller-supplied struct smbuscallback cb pointer into kernel-mo...

CVE-2026-18415

ieee802154send in subsys/net/l2/ieee802154/ieee802154.c copies the outgoing packet into a single fixed 125-byte transmit buffer txframebufpool, sized IEEE802154MTU. In builds with CONFIGNETL2IEEE802154FRAGMENT enabled the default whenever CONFIGNET6LO is set, the branch taken when 6LoWPAN...

EUVD-2026-88473

ieee802154send in subsys/net/l2/ieee802154/ieee802154.c copies the outgoing packet into a single fixed 125-byte transmit buffer txframebufpool, sized IEEE802154MTU. In builds with CONFIGNETL2IEEE802154FRAGMENT enabled the default whenever CONFIGNET6LO is set, the branch taken when 6LoWPAN...