SUSE SLES15 Security Update : kernel RT (Live Patch 15 for SUSE Linux Enterprise 15 SP7) (SUSE-SU-2026:2862-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2862-1 advisory. This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.54 fixes various security issues The following security issues were fixed: -...

kernel: exit: prevent preemption of oopsing TASK_DEAD task

A flaw was found in the Linux kernel. During the exit process of a task that has encountered an error, the system can incorrectly allow the task to be interrupted. This can lead to improper management of the task's memory, potentially causing memory corruption. Such an issue could allow a local...

kernel: exit: prevent preemption of oopsing TASK_DEAD task

A flaw was found in the Linux kernel. During the exit process of a task that has encountered an error, the system can incorrectly allow the task to be interrupted. This can lead to improper management of the task's memory, potentially causing memory corruption. Such an issue could allow a local...

kernel: exit: prevent preemption of oopsing TASK_DEAD task

A flaw was found in the Linux kernel. During the exit process of a task that has encountered an error, the system can incorrectly allow the task to be interrupted. This can lead to improper management of the task's memory, potentially causing memory corruption. Such an issue could allow a local...

kernel: exit: prevent preemption of oopsing TASK_DEAD task

A flaw was found in the Linux kernel. During the exit process of a task that has encountered an error, the system can incorrectly allow the task to be interrupted. This can lead to improper management of the task's memory, potentially causing memory corruption. Such an issue could allow a local...

kernel: exit: prevent preemption of oopsing TASK_DEAD task

A flaw was found in the Linux kernel. During the exit process of a task that has encountered an error, the system can incorrectly allow the task to be interrupted. This can lead to improper management of the task's memory, potentially causing memory corruption. Such an issue could allow a local...

Linux Distros Unpatched Vulnerability : CVE-2026-46173

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - exit: prevent preemption of oopsing TASKDEAD task When an already-exiting task oopses, maketaskdead currently calls dotaskdead with preemption enabled. That is...

CVE-2026-46173

A flaw was found in the Linux kernel. During the exit process of a task that has encountered an error, the system can incorrectly allow the task to be interrupted. This can lead to improper management of the task's memory, potentially causing memory corruption. Such an issue could allow a local...

UBUNTU-CVE-2026-46173

In the Linux kernel, the following vulnerability has been resolved: exit: prevent preemption of oopsing TASKDEAD task When an already-exiting task oopses, maketaskdead currently calls dotaskdead with preemption enabled. That is forbidden: dotaskdead calls schedule, which has a comment saying...

CVE-2026-46173 exit: prevent preemption of oopsing TASK_DEAD task

In the Linux kernel, the following vulnerability has been resolved: exit: prevent preemption of oopsing TASKDEAD task When an already-exiting task oopses, maketaskdead currently calls dotaskdead with preemption enabled. That is forbidden: dotaskdead calls schedule, which has a comment saying...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: perf: Fix event leak upon exit When a task is scheduled out, pending sigtrap deliveries are deferred to the target task upon resume to user space via taskwork. However, failures during the addition of an event’s callback to the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004957)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004957 advisory. In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: fix race between handleposixcputimers and posixcputimerdel If an exiting...

SUSE CVE-2025-40024

In the Linux kernel, the following vulnerability has been resolved: vhost: Take a reference on the task in struct vhosttask. vhosttaskcreate creates a task and keeps a reference to its taskstruct. That task may exit early via a signal and its taskstruct will be released. A pending vhosttaskwake...

UBUNTU-CVE-2025-40024

In the Linux kernel, the following vulnerability has been resolved: vhost: Take a reference on the task in struct vhosttask. vhosttaskcreate creates a task and keeps a reference to its taskstruct. That task may exit early via a signal and its taskstruct will be released. A pending vhosttaskwake...

EUVD-2025-35835

In the Linux kernel, the following vulnerability has been resolved: vhost: Take a reference on the task in struct vhosttask. vhosttaskcreate creates a task and keeps a reference to its taskstruct. That task may exit early via a signal and its taskstruct will be released. A pending vhosttaskwake...

CVE-2022-48983

In the Linux kernel, the following vulnerability has been resolved: iouring: Fix a null-ptr-deref in iotctxexitcb Syzkaller reports a NULL deref bug as follows: BUG: KASAN: null-ptr-deref in iotctxexitcb+0x53/0xd3 Read of size 4 at addr 0000000000000138 by task file1/1955 CPU: 1 PID: 1955 Comm:...

SUSE CVE-2024-43870

In the Linux kernel, the following vulnerability has been resolved: perf: Fix event leak upon exit When a task is scheduled out, pending sigtrap deliveries are deferred to the target task upon resume to userspace via taskwork. However failures while adding an event's callback to the taskwork engi...

DEBIAN-CVE-2024-43870

In the Linux kernel, the following vulnerability has been resolved: perf: Fix event leak upon exit When a task is scheduled out, pending sigtrap deliveries are deferred to the target task upon resume to userspace via taskwork. However failures while adding an event's callback to the taskwork engi...

CVE-2023-51787

An issue was discovered in Wind River VxWorks 7 22.09 and 23.03. If a VxWorks task or POSIX thread that uses OpenSSL exits, limited per-task memory is not freed, resulting in a memory leak...

Exploiting null-dereferences in the Linux kernel

Posted by Seth Jenkins, Project Zero For a fair amount of time, null-deref bugs were a highly exploitable kernel bug class. Back when the kernel was able to access userland memory without restriction, and userland programs were still able to map the zero page, there were many easy techniques for...