CVE-2026-89765

A flaw was found in the Linux kernel's timers/itimer component. On native sparc64 systems, the struct kerneloldtimeval contains uninitialized padding bytes. When putitimerval copies this structure to userspace, these padding bytes can be exposed, leading to information disclosure. This...

CVE-2026-89765

CVE-2026-89765 is a Linux kernel information disclosure vulnerability in the timers/itimer subsystem. On native sparc64 , the __kernel_old_timeval struct contains a four-byte alignment hole after tv_usec (because tv_sec is 64-bit while __kernel_suseconds_t is 32-bit). The put_itimerval() function...

PT-2026-90481

In the Linux kernel, the following vulnerability has been resolved: timers/itimer: Zero-init old itimerval before copy to userspace On native sparc64, struct kernel old timeval contains a four-byte hole after tv usec because tv sec is 64-bit while kernel suseconds t is 32-bit. put itimerval fills...

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...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013053)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013053 advisory. In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010849)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010849 advisory. In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is...

The vulnerability of the itimer_delete() function in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the itimerdelete function in the Linux operating system is related to the execution of a loop with an unreachable exit condition. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

SUSE CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

EUVD-2023-60091

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

DEBIAN-CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

UBUNTU-CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

CVE-2023-53815 posix-timers: Prevent RT livelock in itimer_delete()

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

CVE-2023-53815

CVE-2023-53815 affects the Linux kernel’s posix timers handling. It describes an RT livelock in itimer_delete() when the timer is concurrently expired; on non-RT kernels this retries by spin-waiting, except for posix CPU timers with HAVE_POSIX_CPU_TIMERS_TASK_WORK. The fix replaces a spin_unlock(...

CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

CVE-2023-53815 posix-timers: Prevent RT livelock in itimer_delete()

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

PT-2025-49675

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description The Linux kernel contains a flaw in the posix-timers functionality, specifically within the itimer delete function. A retry loop within this function, when handling concurrent timer...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from itimerdelete not handling concurrent expiration correctly, which could lead to RT real-time lockup...

SUSE CVE-2005-1913

The Linux kernel 2.6 before 2.6.12.1 allows local users to cause a denial of service kernel panic via a non group-leader thread executing a different program than was pending in itimer, which causes the signal to be delivered to the old group-leader task, which does not exist...