OESA-2026-2173 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: icmp: fix NULL pointer dereference in icmptagvalidation icmptagvalidation unconditionally dereferences the result of rcudereferenceinetprotosproto without checki...

CVE-2026-43038

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach Sashiko AI-review observed: In ip6errgenicmpv6unreach, the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inetskbparm. When skb is cloned into skb2 and...

CVE-2026-43037

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

CVE-2026-43038

CVE-2026-43038 affects the Linux kernel IPv6 ICMP error path. A forged IPv4 ICMP error with CIPSO options could cause ip6_err_gen_icmpv6_unreach() to misinterpret an inner IPv4 inet_skb_parm as an IPv6 parameter, allowing an offset misreference (dsthao) that could enable out-of-bounds or memory a...

CVE-2026-43038

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach Sashiko AI-review observed: In ip6errgenicmpv6unreach, the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inetskbparm. When skb is cloned into skb2 and...

CVE-2026-43038

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach Sashiko AI-review observed: In ip6errgenicmpv6unreach, the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inetskbparm. When skb is cloned into skb2 and...

CVE-2026-43038 ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach Sashiko AI-review observed: In ip6errgenicmpv6unreach, the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inetskbparm. When skb is cloned into skb2 and...

Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues The following security issues were fixed: CVE-2024-26584: net/tls: return ENOTSUPP on tlsinit bsc1220186. CVE-2025-38234: sched/rt: Fix race in pushrttask bsc1246057. CVE-2025-39759: btrfs: qgroup: fix race between...

SUSE CVE-2026-5299

ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service...

CVE-2026-5299

ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service...

CVE-2026-5299 Uncontrolled Recursion in Wireshark

ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service...

RHEL 9 : ovn24.03 (RHSA-2026:11700)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11700 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

RHEL 9 : ovn23.06 (RHSA-2026:11696)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11696 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

RHEL 9 : ovn25.03 (RHSA-2026:11701)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11701 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

RHEL 9 : ovn25.09 (RHSA-2026:11702)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11702 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

RHEL 9 : ovn23.09 (RHSA-2026:11698)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11698 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add...

CVE-2026-7423 Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

CVE-2026-7423 Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

ovn: ovn: Heap Over-Read in ICMP Error Response Generation

When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length iptotlen for IPv4, ip6plen for IPv6 without validating it against the actual packet buffer size...

ovn: ovn: Heap Over-Read in ICMP Error Response Generation

When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length iptotlen for IPv4, ip6plen for IPv6 without validating it against the actual packet buffer size...