kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

Important: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

RHEL 7 : kernel-rt (RHSA-2025:15646)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:15646 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

RHEL 9 : kernel-rt (RHSA-2025:15658)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:15658 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-20553)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-20553 advisory. - netsched: schsfq: move the limit validation Octavian Purdila Orabug: 38377926 CVE-2025-37752 - netsched: schsfq: don't allow 1 packet limit...

Regular Expression Denial of Service (ReDoS)

Overview cattown is an A lightweight, pure JavaScript markdown parser with built-in HTML sanitization using DOMPurify. Converts markdown to clean, safe HTML with customizable styling. Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via inefficient...

PT-2025-40069

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.17.0-rc4-dirty 343 Description The Linux kernel contained a flaw in the sched numa find nth cpu function. This function, when used with an offline CPU mask, could lead to a null pointer dereference due to an...

AlmaLinux 8 : kernel-rt (ALSA-2025:15472)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:15472 advisory. kernel: bpf: Don't use tnumrange on array range checking for poke descriptors CVE-2022-49985 kernel: posix-cpu-timers: fix race between...

CVE-2025-58451 Cattown Vulnerable to Inefficient Regular Expression Complexity and Uncontrolled Resource Consumption

Cattown is a JavaScript markdown parser. Versions prior to 1.0.2 used regular expressions with inefficient, potentially exponential worst-case complexity. This could cause excessive CPU usage due to excessive backtracking on crafted inputs. In turn, the excessive CPU usage could lead to resource...

CVE-2025-58451 Cattown Vulnerable to Inefficient Regular Expression Complexity and Uncontrolled Resource Consumption

Cattown is a JavaScript markdown parser. Versions prior to 1.0.2 used regular expressions with inefficient, potentially exponential worst-case complexity. This could cause excessive CPU usage due to excessive backtracking on crafted inputs. In turn, the excessive CPU usage could lead to resource...

CVE-2025-58451 Cattown Vulnerable to Inefficient Regular Expression Complexity and Uncontrolled Resource Consumption

Cattown is a JavaScript markdown parser. Versions prior to 1.0.2 used regular expressions with inefficient, potentially exponential worst-case complexity. This could cause excessive CPU usage due to excessive backtracking on crafted inputs. In turn, the excessive CPU usage could lead to resource...

CVE-2024-36331

Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity...

kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

[SECURITY] [DLA 4295-1] libhtp security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4295-1 [email protected] https://www.debian.org/lts/security/ Adrian Bunk September 08, 2025 https://wiki.debian.org/LTS -...

The vulnerability of the `handle_posix_cpu_timers` function in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the handleposixcputimers function in the Linux operating system’s kernel is related to state management errors. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

ALSA-2025:15471 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: bpf: Don't use tnumrange on array range checking for poke descriptors CVE-2022-49985 kernel: posix-cpu-timers: fix race between handleposixcputimers and posixcputimerdel CVE-2025-38352 Fo...

PT-2025-36518

Name of the Vulnerable Software and Affected Versions: Cattown versions prior to 1.0.2 Description: Cattown is a JavaScript markdown parser susceptible to denial of service. The parser utilizes regular expressions with inefficient complexity, potentially leading to exponential worst-case...

ALSA-2025:15472 Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: bpf: Don't use tnumrange on array range checking for poke descriptors CVE-2022-49985 kernel: posix-cpu-timers: fix race between...