UBUNTU-CVE-2026-64563

In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale iter-p on table restart rhashtablewalkstartcheck has two restart paths when resuming a walk. When iter-walker.tbl is valid, it re-validates iter-p against the table and sets iter-p = NULL if the object is...

CVE-2026-64563 rhashtable: clear stale iter->p on table restart

In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale iter-p on table restart rhashtablewalkstartcheck has two restart paths when resuming a walk. When iter-walker.tbl is valid, it re-validates iter-p against the table and sets iter-p = NULL if the object is...

CVE-2026-64563

CVE-2026-64563 targets the Linux kernel’s rhashtable walk restart path. The issue occurs when a table is freed during a resize (walker.tbl becomes NULL), allowing rhashtable_walk_next() to dereference a stale iter->p and read freed memory, creating a use-after-free condition. Affected callers ...

CVE-2026-64563 rhashtable: clear stale iter->p on table restart

In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale iter-p on table restart rhashtablewalkstartcheck has two restart paths when resuming a walk. When iter-walker.tbl is valid, it re-validates iter-p against the table and sets iter-p = NULL if the object is...

EUVD-2026-52604

In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale iter-p on table restart rhashtablewalkstartcheck has two restart paths when resuming a walk. When iter-walker.tbl is valid, it re-validates iter-p against the table and sets iter-p = NULL if the object is...

CVE-2026-64563

In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale iter-p on table restart rhashtablewalkstartcheck has two restart paths when resuming a walk. When iter-walker.tbl is valid, it re-validates iter-p against the table and sets iter-p = NULL if the object is...

RockyLinux 8 : kernel-rt (RLSA-2026:49213)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:49213 advisory. kernel: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to master conntrack...

RockyLinux 8 : kernel (RLSA-2026:49214)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:49214 advisory. kernel: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to master conntrack...

Linux Distros Unpatched Vulnerability : CVE-2026-64563

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rhashtable: clear stale iter-p on table restart rhashtablewalkstartcheck has two restart paths when resuming a walk. When iter-walker.tbl is valid, it...

kernel security update

4.18.0-553.150.1 - 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: 24817676 - Conflict with shim-ia32 and...

kernel: rtnetlink: add missing netlink_ns_capable() check for peer netns

A flaw was found in the Linux kernel's rtnetlink component. An unprivileged local user, leveraging a user namespace, can exploit a missing CAPNETADMIN capability check in the rtnlnewlink function. This allows the user to create paired network devices in arbitrary network namespaces, including the...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8. 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 for each vulnerability from th...

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

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. 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 for each vulnerability from...

The vulnerability in the net/netfilter/nf_conntrack_netlink.c module of the Linux kernel’s netfilter component allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability in the net/netfilter/nfconntracknetlink.c module of the Linux kernel’s netfilter component is related to the reutilization of previously freed memory. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of protected...

ALSA-2026:49214 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to master conntrack CVE-2026-43116 kernel: fanotify: fix false...

ALSA-2026:49213 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: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to...

The vulnerability of the `dev_energymodel_nl_get_perf_domains_doit()` function in the kernel/power/em_netlink.c file of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the devenergymodelnlgetperfdomainsdoit function in the kernel/power/emnetlink.c file of the Linux operating system is related to pointer manipulation. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

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: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to master conntrack CVE-2026-43116 kernel: fanotify: fix false...

RHEL 8 : kernel (RHSA-2026:49214)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:49214 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: rtnetlink: add missing...