CVE-2026-89500

A flaw was found in the Linux kernel's ring-buffer component. When a cached reader page is discarded after a concurrent ring buffer resize, the system may use an incorrect buffer size for memory deallocation. This mismatch can lead to a kernel crash, resulting in a Denial of Service DoS, or it...

Linux Distros Unpatched Vulnerability : CVE-2026-89500

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder...

DEBIAN-CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

UBUNTU-CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89500

CVE-2026-89500 is a flaw in the Linux kernel's ring-buffer component. When a cached reader page is discarded after a concurrent ring buffer resize, the kernel uses the new global subbuf_order for the free_pages() call rather than the order under which the page was originally allocated. This misma...

CVE-2026-89500 ring-buffer: Make cpu_buffer::free_page a buffer_data_read_page

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89500 ring-buffer: Make cpu_buffer::free_page a buffer_data_read_page

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

PT-2026-90216

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpu buffer::free page a buffer data read page Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuf order for the free pages call. This mismatched order may crashes the...

CVE-2026-64189

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix race between dump and ipsetlist resize The release path of ipsetdumpdo and ipsetdumpdone read inst-ipsetlist via ipsetrefnetlink, a plain rcudereferenceraw of the array pointer. These run from netlinkrecvmsg...

SUSE CVE-2026-43042

In the Linux kernel, the following vulnerability has been resolved: mpls: add seqcount to protect the platformlabel,s pair The RCU-protected codepaths mplsforward, mplsdumproutes can have an inconsistent view of platformlabels vs platformlabel in case of a concurrent resize...

CVE-2026-43042

In the Linux kernel, the following vulnerability has been resolved: mpls: add seqcount to protect the platformlabel,s pair The RCU-protected codepaths mplsforward, mplsdumproutes can have an inconsistent view of platformlabels vs platformlabel in case of a concurrent resize...

CVE-2026-43042

In the Linux kernel, the following vulnerability has been resolved: mpls: add seqcount to protect the platformlabel,s pair The RCU-protected codepaths mplsforward, mplsdumproutes can have an inconsistent view of platformlabels vs platformlabel in case of a concurrent resize...

CVE-2026-43042 mpls: add seqcount to protect the platform_label{,s} pair

In the Linux kernel, the following vulnerability has been resolved: mpls: add seqcount to protect the platformlabel,s pair The RCU-protected codepaths mplsforward, mplsdumproutes can have an inconsistent view of platformlabels vs platformlabel in case of a concurrent resize...

EUVD-2026-26641

In the Linux kernel, the following vulnerability has been resolved: mpls: add seqcount to protect the platformlabel,s pair The RCU-protected codepaths mplsforward, mplsdumproutes can have an inconsistent view of platformlabels vs platformlabel in case of a concurrent resize...

CVE-2026-43042

The CVE-2026-43042 issue affects the Linux kernel MPLS code. It describes a race condition where concurrent operations on platform label data can yield an inconsistent view during a resize of the platform_label tables, particularly in the RCU-protected paths mpls_forward and mpls_dump_routes unde...

CVE-2026-43042 mpls: add seqcount to protect the platform_label{,s} pair

In the Linux kernel, the following vulnerability has been resolved: mpls: add seqcount to protect the platformlabel,s pair The RCU-protected codepaths mplsforward, mplsdumproutes can have an inconsistent view of platformlabels vs platformlabel in case of a concurrent resize...

PT-2026-36459

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to March 2026 Description An out-of-bounds OOB access issue exists in the Linux kernel within the MPLS implementation. RCU-protected codepaths, specifically the mpls forward and mpls dump routes functions, can...