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...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: Make sure to refresh masterdev/mops in rtnlnewlink. While looking at one unrelated syzbot bug, I found that the replay logic in rtnlnewlink could potentially trigger a use-after-free condition. It’s better to clear...

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: net: rtnetlink: The iflavfbroadcast field was set to zero to avoid a stack leak in the rtnlfillvfinfo function. However, the struct iflavfbroadcast structure was declared on the stack without initialization: c struct...

MiracleLinux 9 : kernel-5.14.0-687.47.1.el9_8 (AXSA:2026-2048:99)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-2048:99 advisory. kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset CVE-2025-68745 kernel: drm/xe:...

Linux Distros Unpatched Vulnerability : CVE-2026-98379

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop...

SUSE CVE-2026-98379

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

DEBIAN-CVE-2026-98379

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

UBUNTU-CVE-2026-98379

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379

The Linux kernel contains a vulnerability in the netfilter: ip6t_rpfilter component. The ip6_route_lookup() function can return a route where rt6i_idev is NULL if an external nexthop device's MTU is lowered below IPV6_MIN_MTU, causing the inet6_dev to be torn down while the route remains in the F...

EUVD-2026-95534

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379 netfilter: ip6t_rpfilter: reject routes without inet6_dev

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379 netfilter: ip6t_rpfilter: reject routes without inet6_dev

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

PT-2026-108765

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL dereference can occur in the netfilter IPv6 reverse-path filter. This happens when ip6 route lookup returns a route where the rt6i idev variable is NULL. An unprivileged user can...

Rocky Linux 8 [CIQ] Security Update: kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc Multiple Vulnerabilities (crlsa-2026_49213)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202649213 advisory. kernel: rtnetlink: add missing netlinknscapable check for peer netns CVE-2026-31692 kernel: netfilter: ctnetlink: ensure safe access to master conntrack...

CVE-2026-98021

A flaw was found in the Linux kernel. A local user can cause a Denial of Service DoS by triggering excessive memory consumption on the host. When creating or updating network interfaces through the routing netlink rtnetlink interface, the kernel fails to validate and enforce maximum limits on the...

DEBIAN-CVE-2026-97974

In the Linux kernel, the following vulnerability has been resolved: ipv6: null-check fib6node before accessing in ip6delrtsiblings syzbot reported a null-ptr-deref in ip6delrtsiblings 0. The stack trace hinted towards a null dereference of rt-fib6node when fn-leaf is accessed in ip6delrtsiblings...

CVE-2026-98122 vxlan: mdb: Fix use-after-free in vxlan_mdb_remote_src_del()

In the Linux kernel, the following vulnerability has been resolved: vxlan: mdb: Fix use-after-free in vxlanmdbremotesrcdel vxlanmdbisvalidsource, which validates MDBEATTRSOURCE and every MDBEATTRSRCLIST member, accepts the all-zeros address. A source list is only accepted on a , G entry, whose...