CVE-2026-64560-Analysis

CVE-2026-64560 — Linux Kernel posix-cpu-timers non-leader exec race UAF Reproducer / PoC trigger verification : Linux & Android NDK This repository is intended solely for verifying patch status and for research/learning on your own test devices. It does not contain any privilege...

CVE-2026-90305: Undefined Security Weakness

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...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: A race condition between handleposixcputimers and posixcputimerdel has been fixed. If a task that exits without autoreaping has already called exitnotify and calls handleposixcputimers from the IRQ, it can be...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: This issue prevents UAF Use-after-Allocation caused by a race condition involving non-leader exec. Wongi and Jungwoo identified and reported a race condition related to exec, which can lead to UAF. The detailed...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Clean up CPU timers before freeing them during exec. The commit 55e8c8eb2c7b “posix-cpu-timers: Store a reference to a pid instead of a task” introduced a mechanism to retrieve tasks by PID when deleting a CPU...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: AppArmor: Fixed the rlimit settings for posix cpu timers. posix cpu timers require an additional step beyond simply setting rlimit. The code should be refactored so it’s clear which code is setting the limits, and the posix cp...

Exploit for Time-of-check Time-of-use (TOCTOU) Race Condition in Linux Linux_Kernel

CVE-2025-38352: Linux Kernel POSIX CPU Timer TOCTOU Race Condi...

kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race

A flaw was found in the Linux kernel's CPU timer functionality. A race condition, which is a timing issue between different operations, can occur when a process attempts to delete a timer while another operation is still trying to access it. This can lead to a Use-After-Free UAF vulnerability,...

SUSE CVE-2026-72068

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Use u64 multiplication in updaterlimitcpu updaterlimitcpu converts the RLIMITCPU value to nanoseconds with u64 nsecs = rlimnew NSECPERSEC; On 32-bit kernels both rlimnew unsigned long and NSECPERSEC 1000000000L...

Exploit for CVE-2026-64560

GhostLock CVE-2026-64560 — posix-cpu-timers UAF exploit for Vi...

kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race

A flaw was found in the Linux kernel's CPU timer functionality. A race condition, which is a timing issue between different operations, can occur when a process attempts to delete a timer while another operation is still trying to access it. This can lead to a Use-After-Free UAF vulnerability,...

kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race

A flaw was found in the Linux kernel's CPU timer functionality. A race condition, which is a timing issue between different operations, can occur when a process attempts to delete a timer while another operation is still trying to access it. This can lead to a Use-After-Free UAF vulnerability,...

kernel security, bug fix, and enhancement update

5.14.0-687.41.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

CVE-2026-72068

A flaw was found in the Linux kernel's posix-cpu-timers component on 32-bit systems. An integer truncation vulnerability occurs in the updaterlimitcpu function when converting the RLIMITCPU value to nanoseconds. This issue causes the process CPU timer to be programmed to fire prematurely for...

Linux Distros Unpatched Vulnerability : CVE-2026-72068

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - posix-cpu-timers: Use u64 multiplication in updaterlimitcpu updaterlimitcpu converts the RLIMITCPU value to nanoseconds with u64 nsecs = rlimnew NSECPERSEC; On...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100544)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100544 advisory. In the Linux kernel, the following vulnerability has been resolved: apparmor: fix rlimit for posix cpu timers Posix cpu timers requires an additional step beyond...

CVE-2026-72068

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Use u64 multiplication in updaterlimitcpu updaterlimitcpu converts the RLIMITCPU value to nanoseconds with u64 nsecs = rlimnew NSECPERSEC; On 32-bit kernels both rlimnew unsigned long and NSECPERSEC 1000000000L...

CVE-2026-72068

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Use u64 multiplication in updaterlimitcpu updaterlimitcpu converts the RLIMITCPU value to nanoseconds with u64 nsecs = rlimnew NSECPERSEC; On 32-bit kernels both rlimnew unsigned long and NSECPERSEC 1000000000L...

UBUNTU-CVE-2026-72068

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Use u64 multiplication in updaterlimitcpu updaterlimitcpu converts the RLIMITCPU value to nanoseconds with u64 nsecs = rlimnew NSECPERSEC; On 32-bit kernels both rlimnew unsigned long and NSECPERSEC 1000000000L...

CVE-2026-72068

CVE-2026-72068 affects the Linux kernel’s posix-cpu-timers, specifically the update_rlimit_cpu() path. On 32‑bit kernels, rlim_new * NSEC_PER_SEC is computed in 32-bit space, causing truncation when rlim_new > 4 seconds and leading to an incorrect (too small) nsecs value stored in the CPU time...