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...

CVE-2026-64560-Analysis

CVE-2026-64560 — UAF por condición de carrera en posix-cpu-timers del kernel de Linux: exec de hilo no líder Reproductor / PoC de verificación de disparo : Linux y Android NDK Este repositorio es únicamente para verificar el estado del parche y para estudio e investigación en dispositivos de prue...

Cronos

Cronos Este proyecto fue coautoría de Descripción PoC de una nueva técnica de ofuscación de suspensión basada en Ekko que aprovecha los temporizadores con espera para cifrar el proceso actual con RC4 y cambiar los permisos de RW a RX para evadir los escáneres de memoria. Una explicación más...

TickTock

TickTock Este repositorio demuestra un escáner de memoria PoC para enumerar los temporizadores de cola de temporizadores timer-queue timers utilizados en Ekko Sleep Obfuscation: https://github.com/Cracked5pider/Ekko. Para un análisis técnico completo, consulte la publicación del blog adjunta aquí...

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,...

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: TCP: Timers for kernel sockets are properly terminated. We received various reports from syzbot regarding TCP timers firing after the corresponding netns has been dismantled. Fortunately, Josef Bacik was able to trigger this issu...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed a race condition between bpftimercancelandfree and bpftimercancel. This race condition could lead to a UAF Use-After-Free error involving the timer-timer variable. Here’s the detailed explanation: In bpftimer...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

It was discovered that when executing from a non-leader thread, armed POSIX CPU timers would remain on a list but would then be freed, resulting in a use-after-free...

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

In the Linux kernel, the following vulnerabilities have been resolved: hrtimers: Properly handle CPU state during hotplug events. Consider a scenario where a CPU transitions from CPUHPONLINE to CPUHPHRTIMERSPREPARE after being hot-unplugged, and then back to CPUHPONLINE. Since the...

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, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: posix-timers: A situation where livelock occurs in itimerdelete has been addressed. Itimerdelete includes a retry loop when the timer expires simultaneously. On non-RT kernels, this simply involves waiting until the timer callbac...

Exploit for CVE-2026-64560

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

PT-2026-79633

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the x25 network protocol implementation. The x25 timers are managed using mod timer and timer delete, which does not ensure a reference is held on the...

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...

UBUNTU-CVE-2026-72389

In the Linux kernel, the following vulnerability has been resolved: bridge: stp: Fix a potential use-after-free when deleting a bridge The three STP timers are not supposed to be armed while the bridge is administratively down. They are synchronously deactivated when the bridge is put...