Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: sched/rt: The function rtonextcpu should now properly handle situations where only CPU0 is overloaded. In such cases, rtonextcpu should ideally return -1, indicating that no further IPIs are needed. The vulnerability arises when...

SUSE CVE-2026-45919

In the Linux kernel, the following vulnerability has been resolved: sched/rt: Skip currently executing CPU in rtonextcpu CPU0 becomes overloaded when hosting a CPU-bound RT task, a non-CPU-bound RT task, and a CFS task stuck in kernel space. When other CPUs switch from RT to non-RT tasks, RT load...

CVE-2026-45919

A flaw was found in the Linux kernel's real-time RT scheduler. Under specific heavy load conditions, a vulnerability in the rtonextcpu function can cause a CPU to repeatedly interrupt itself. This leads to a CPU hardlockup, resulting in a Denial of Service DoS for the system. This issue can be...

EUVD-2026-32385

In the Linux kernel, the following vulnerability has been resolved: sched/rt: Skip currently executing CPU in rtonextcpu CPU0 becomes overloaded when hosting a CPU-bound RT task, a non-CPU-bound RT task, and a CFS task stuck in kernel space. When other CPUs switch from RT to non-RT tasks, RT load...

UBUNTU-CVE-2026-45919

In the Linux kernel, the following vulnerability has been resolved: sched/rt: Skip currently executing CPU in rtonextcpu CPU0 becomes overloaded when hosting a CPU-bound RT task, a non-CPU-bound RT task, and a CFS task stuck in kernel space. When other CPUs switch from RT to non-RT tasks, RT load...

CVE-2026-45919 sched/rt: Skip currently executing CPU in rto_next_cpu()

In the Linux kernel, the following vulnerability has been resolved: sched/rt: Skip currently executing CPU in rtonextcpu CPU0 becomes overloaded when hosting a CPU-bound RT task, a non-CPU-bound RT task, and a CFS task stuck in kernel space. When other CPUs switch from RT to non-RT tasks, RT load...

CVE-2026-45919

CVE-2026-45919 relates to Linux kernel sched/rt self-IPI loops caused by LB on CPU0. A patch fixes the issue by filtering out the initiating CPU in rto_next_cpu to prevent self-IPIs and CPU hardlockups. Public OSV entries show Root:Ubuntu patches (e.g., ROOT-OS-UBUNTU-2404-CVE-2026-45919 and ROOT...

PT-2026-43786

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Real-Time RT load balancing mechanism where a CPU can enter an infinite self-Inter-Processor Interrupt IPI loop, leading to a CPU hardlockup. This occurs when a CP...

Linux Distros Unpatched Vulnerability : CVE-2026-45919

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sched/rt: Skip currently executing CPU in rtonextcpu CPU0 becomes overloaded when hosting a CPU-bound RT task, a non-CPU-bound RT task, and a CFS task stuck in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: SCTP: A potential out-of-bounds exception has been prevented in sctptransportupdaterto. SYZBOOT reported a potential out-of-bounds exception 1. The responsible developer added rtoalphamax and set rtobetamax to 1000. It is...

SUSE CVE-2025-40281

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

Linux Distros Unpatched Vulnerability : CVE-2025-40281

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift- out-of-bounds 1 Blamed commit added rtoalphamax and...

EUVD-2025-201574

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

CVE-2025-40281

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

UBUNTU-CVE-2025-40281

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

CVE-2025-40281

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

CVE-2025-40281 sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

CVE-2025-40281 sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto

In the Linux kernel, the following vulnerability has been resolved: sctp: prevent possible shift-out-of-bounds in sctptransportupdaterto syzbot reported a possible shift-out-of-bounds 1 Blamed commit added rtoalphamax and rtobetamax set to 1000. It is unclear if some sctp users are setting very...

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 sctp not handling rtoalpha and rtobeta values correctly, which could result in a shift out-of-bounds...

PT-2025-49382

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the sctp transport update rto function that may lead to a shift-out-of-bounds condition. This issue was identified by syzbot, which reported a potenti...