1794 matches found
CVE-2026-63810 block: Avoid mounting the bdev pseudo-filesystem in userspace
In the Linux kernel, the following vulnerability has been resolved: block: Avoid mounting the bdev pseudo-filesystem in userspace The bdev pseudo-filesystem is an internal kernel filesystem with which userspace should not interfere. Unregister it so that userspace cannot even attempt to mount it...
PT-2026-61126
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the bdev pseudo-filesystem, an internal kernel filesystem that should not be accessible to userspace. A kernel NULL pointer dereference occurs when userspace attempts ...
PT-2026-61366
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference can be triggered in the adreno get param function when userspace queries UBWC-related parameters on a2xx-a4xx Adreno drivers. This occurs because these hardwar...
PT-2026-61149
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ntfs3 driver where the empty-prefix xattr handler allows file owners to call setxattr directly on reserved xattrs used as internal WSL permission metadata,...
CVE-2026-10670
The CONFIGUSERSPACE verification handler for the kthreadnamecopy system call zvrfykthreadnamecopy in kernel/thread.c calls kobjectfind on the caller-supplied thread pointer and then dereferences the returned struct kobject without checking it for NULL. kobjectfind returns NULL whenever the suppli...
CVE-2026-10669
On Xtensa SoCs built with CONFIGXTENSAMPU and CONFIGUSERSPACE, archbuffervalidate in arch/xtensa/core/mpu.c — the architecture hook that verifies a user-mode-supplied buffer is accessible to the calling user thread with the requested permission — defaulted its return value to 0 access permitted a...
CVE-2026-10671 User thread can re-initialize an in-use `k_pipe`, corrupting kernel wait queues (`CONFIG_USERSPACE`)
In Zephyr's kernel pipe implementation, the userspace syscall verifier zvrfykpipeinit in kernel/pipe.c used KSYSCALLOBJ which requires the kernel object to already be initialized instead of KSYSCALLOBJNEVERINIT which rejects an already-initialized object. As a result, on CONFIGUSERSPACE builds an...
CVE-2026-10671 User thread can re-initialize an in-use `k_pipe`, corrupting kernel wait queues (`CONFIG_USERSPACE`)
In Zephyr's kernel pipe implementation, the userspace syscall verifier zvrfykpipeinit in kernel/pipe.c used KSYSCALLOBJ which requires the kernel object to already be initialized instead of KSYSCALLOBJNEVERINIT which rejects an already-initialized object. As a result, on CONFIGUSERSPACE builds an...
EUVD-2026-43698
In Zephyr's kernel pipe implementation, the userspace syscall verifier zvrfykpipeinit in kernel/pipe.c used KSYSCALLOBJ which requires the kernel object to already be initialized instead of KSYSCALLOBJNEVERINIT which rejects an already-initialized object. As a result, on CONFIGUSERSPACE builds an...
CVE-2026-10670 User-triggerable kernel NULL-pointer dereference (DoS) in `k_thread_name_copy()` syscall verifier
The CONFIGUSERSPACE verification handler for the kthreadnamecopy system call zvrfykthreadnamecopy in kernel/thread.c calls kobjectfind on the caller-supplied thread pointer and then dereferences the returned struct kobject without checking it for NULL. kobjectfind returns NULL whenever the suppli...
CVE-2026-10670 User-triggerable kernel NULL-pointer dereference (DoS) in `k_thread_name_copy()` syscall verifier
The CONFIGUSERSPACE verification handler for the kthreadnamecopy system call zvrfykthreadnamecopy in kernel/thread.c calls kobjectfind on the caller-supplied thread pointer and then dereferences the returned struct kobject without checking it for NULL. kobjectfind returns NULL whenever the suppli...
CVE-2026-10670 User-triggerable kernel NULL-pointer dereference (DoS) in `k_thread_name_copy()` syscall verifier
The CONFIGUSERSPACE verification handler for the kthreadnamecopy system call zvrfykthreadnamecopy in kernel/thread.c calls kobjectfind on the caller-supplied thread pointer and then dereferences the returned struct kobject without checking it for NULL. kobjectfind returns NULL whenever the suppli...
CVE-2026-10670
The CVE describes a local denial of service in Zephyr’s kernel: the CONFIG_USERSPACE verifier for k_thread_name_copy() dereferences ko without NULL checking after k_object_find() returns NULL for unregistered pointers. This NULL dereference occurs in supervisor mode, causing a kernel fault and po...
PT-2026-58036
On Xtensa SoCs built with CONFIG XTENSA MPU and CONFIG USERSPACE, arch buffer validate in arch/xtensa/core/mpu.c — the architecture hook that verifies a user-mode-supplied buffer is accessible to the calling user thread with the requested permission — defaulted its return value to 0 access...
CVE-2026-10667
Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...
CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads
Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...
CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads
Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...
CVE-2026-10667
Zephyr CVE-2026-10667 affects SMP builds with CONFIG_USERSPACE and dynamic objects (CONFIG_DYNAMIC_OBJECTS). The bug is a use-after-free in the dynamic kernel-object tracker: k_object_wordlist_foreach() iterates obj_list under lists_lock while removals and frees occur under objfree_lock/obj_lock,...
CVE-2026-10667 SMP use-after-free in Zephyr `CONFIG_USERSPACE` dynamic kernel-object tracking, reachable from unprivileged user threads
Zephyr's dynamic kernel-object tracking kernel/userspace/userspace.c, formerly kernel/userspace.c maintains a doubly-linked list objlist of dynamically allocated kernel objects. Iteration over this list in kobjectwordlistforeach was performed under listslock using the SAFE iterator which caches t...
USN-8492-5: Linux kernel (FIPS) vulnerabilities
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - x86 architecture; - Block layer subsystem; -...