CVE-2026-90338

CVE-2026-90338 affects the Linux kernel AMBA PL011 serial console driver. The root cause is that pl011_console_write_atomic() calls clk_enable(), which acquires the common-clock enable_lock. Under PREEMPT_RT , this lock can sleep on contention, but atomic (nbcon) context forbids sleeping, trigger...

EUVD-2026-81999

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: keep console clock enabled for atomic writes pl011consolewriteatomic runs from nbcon atomic context, where sleeping is not allowed. It calls clkenable, which takes the common-clk enablelock. Under PREEMPTRT th...

CVE-2026-90305

CVE-2026-90305 affects the Linux kernel on ARM when PREEMPT_RT is enabled. The root cause is that commit c6e61c06d606 enabled PREEMPT_RT on ARM without selecting HAVE_POSIX_CPU_TIMERS_TASK_WORK , leaving CPU timers to expire in hard IRQ context . On PREEMPT_RT, this causes run_posix_cpu_timers() ...

EUVD-2026-81965

In the Linux kernel, the following vulnerability has been resolved: ARM: 9484/1: enable interrupts when unhandled user faults are triggered PREEMPTRT requires interrupts to be enabled when sending signals. When doDataAbort/doPrefetchAbort triggers unhandled user faults, that is inf-fn return a...

EUVD-2026-81966

In the Linux kernel, the following vulnerability has been resolved: ARM: 9483/1: select HAVEPOSIXCPUTIMERSTASKWORK Commit c6e61c06d606 "ARM: 9463/1: Allow to enable RT" enabled PREEMPTRT on ARM but did not select HAVEPOSIXCPUTIMERSTASKWORK. This leaves CONFIGPOSIXCPUTIMERSTASKWORK disabled, so CP...

CVE-2026-90304

CVE-2026-90304 affects the Linux kernel on ARM architectures. The vulnerability resides in the exception handlers do_DataAbort() and do_PrefetchAbort() , where PREEMPT_RT requires interrupts to be enabled when sending signals. However, when an unhandled user fault is triggered (i.e., the hook fun...

CVE-2026-90304 ARM: 9484/1: enable interrupts when unhandled user faults are triggered

In the Linux kernel, the following vulnerability has been resolved: ARM: 9484/1: enable interrupts when unhandled user faults are triggered PREEMPTRT requires interrupts to be enabled when sending signals. When doDataAbort/doPrefetchAbort triggers unhandled user faults, that is inf-fn return a...

EUVD-2026-81801

In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/samsungpwm: Switch to rawspinlockt type Samsung PWM timer might be used as a clock source on some legacy systems. When PREEMPTRT is enabled on ARM, regular spinlock is converted to a sleeping lock mutex-based,...

CVE-2026-90208

CVE-2026-90208 affects the Linux kernel's Samsung PWM clocksource driver (clocksource/drivers/samsung_pwm). On legacy systems where the Samsung PWM timer serves as a clock source, the samsung_pwm_lock regular spinlock is converted to a sleeping (mutex-based) lock when PREEMPT_RT is enabled on ARM...

EUVD-2026-81786

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: fix PREEMPTRT self-deadlock in IRQ handler qcomcpucpmboxirqfn calls mboxchanreceiveddata while holding chan-lock. Under PREEMPTRT, spinlockirqsave is converted to an rtspinlock rtmutex-based, which tracks...

CVE-2026-90193

This CVE affects the qcom-cpucp mailbox driver in the Linux kernel under PREEMPT_RT configurations. The root cause is a lock re-entrancy deadlock : qcom_cpucp_mbox_irq_fn() invokes mbox_chan_received_data() while holding chan->lock. Under PREEMPT_RT, spin_lock_irqsave() is converted to an rt_s...

CVE-2026-90192

CVE-2026-90192 affects the Linux kernel 's Qualcomm qcom-cpucp mailbox driver. The root cause is a NULL pointer dereference in qcom_cpucp_mbox_send_data(), which blindly dereferenced the data pointer when mailbox_clear_channel() invoked mbox_send_message() with NULL data to signal an RX channel c...

DEBIAN-CVE-2026-90003

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent rcuwait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete invocation of rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

CVE-2026-90003

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent rcuwait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete invocation of rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

CVE-2026-90003 futex: Prevent rcuwait use-after-free during requeue PI

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent rcuwait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete invocation of rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

CVE-2026-90003 futex: Prevent rcuwait use-after-free during requeue PI

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent rcuwait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete invocation of rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

CVE-2026-90003

CVE-2026-90003 is a use-after-free in the Linux kernel's futex subsystem, triggered on PREEMPT_RT when a FUTEX_CMP_REQUEUE_PI operation races with a waiter's early wakeup (timeout or signal). The requeue task calls rcuwait_wake_up() after the waiter has already left the syscall and freed its stac...

EUVD-2026-80611

In the Linux kernel, the following vulnerability has been resolved: futex: Prevent rcuwait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete invocation of rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

Linux Distros Unpatched Vulnerability : CVE-2026-89589

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - acpi/apei/ghes: Use rawspinlockt for CXL CPER work locks The CXL CPER work registration and unregistration helpers acquire cxlcperworklock and...

UBUNTU-CVE-2026-89589

In the Linux kernel, the following vulnerability has been resolved: acpi/apei/ghes: Use rawspinlockt for CXL CPER work locks The CXL CPER work registration and unregistration helpers acquire cxlcperworklock and cxlcperproterrworklock with a spinlock guard, which leaves local interrupts enabled. T...