kernel: ipv6: use RCU in ip6_output()

A use-after-free flaw was found in ip6finishoutput2 in net/ipv6/ip6output.c in ipv6 access. This flaw could allow an attacker to crash the system at device disconnect. This vulnerability could even lead to a kernel information leak problem...

ALSA-2026:19353 Important: opentelemetry-collector security update

Collector with the supported components for a AlmaLinux build of OpenTelemetry Security Fixes: net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path...

CVE-2026-0243

A denial of service DoS vulnerability in Palo Alto Networks Prisma SD-WAN ION devices enables an unauthenticated attacker in a network adjacent to a Prisma SD-WAN ION device to cause a system disruption by sending a specially crafted IPv6 packet...

CVE-2026-43198

A flaw was found in the Linux kernel. A race condition exists in the TCP Transmission Control Protocol IPv6 Internet Protocol version 6 socket handling, specifically within the tcpv6synrecvsock function. This occurs because a child socket becomes visible in the TCP hash table before its...

CVE-2026-43101

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: fix potential NULL dereferences in ioam6filltracedata We need to check in6devget for possible NULL value, as suggested by Yiming Qian. Also add skbdstdevrcu instead of skbdstdev, and two missing READONCE. Note that @d...

CVE-2026-43057 net: correctly handle tunneled traffic on IPV6_CSUM GSO fallback

In the Linux kernel, the following vulnerability has been resolved: net: correctly handle tunneled traffic on IPV6CSUM GSO fallback NETIFFIPV6CSUM only advertises support for checksum offload of packets without IPv6 extension headers. Packets with extension headers must fall back onto software...

CVE-2026-40198

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

ALSA-2026:7005 Important: git-lfs security update

Git Large File Storage LFS replaces large files such as audio samples, videos, datasets, and graphics with text pointers inside Git, while storing the file contents on a remote server. Security Fixes: net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 For more details abou...

CVE-2021-4477

Hirschmann HiLCOS OpenBAT and BAT450 products contain a firewall bypass vulnerability in IPv6 IPsec deployments that allows traffic from VPN connections to bypass configured firewall rules. Attackers can exploit this vulnerability by establishing IPv6 IPsec connections IKEv1 or IKEv2 while...

CVE-2026-23442

In the Linux kernel, the following vulnerability has been resolved: ipv6: add NULL checks for idev in SRv6 paths in6devget can return NULL when the device has no IPv6 configuration e.g. MTU IPV6MINMTU or after NETDEVUNREGISTER. Add NULL checks for idev returned by in6devget in both...

CVE-2026-23381

A flaw was found in the Linux kernel's network bridging component. When Internet Protocol version 6 IPv6 is explicitly disabled, a critical data structure for Neighbor Discovery is not properly initialized. A remote attacker could exploit this by sending a specially crafted Internet Control Messa...

CVE-2026-4252 Tenda AC8 IPv6 check_is_ipv6 ip address for authentication

A vulnerability was identified in Tenda AC8 16.03.50.11. Affected by this issue is the function checkisipv6 of the component IPv6 Handler. The manipulation leads to reliance on ip address for authentication. It is possible to initiate the attack remotely. The exploit is publicly available and mig...

SUSE-SU-2026:0293-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-38321: smb: Log an error when closeallcacheddirs fails bsc1246328. - CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd bsc1249256. -...

SUSE-SU-2026:0246-1 Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.91 fixes various security issues The following security issues were fixed: - CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1254451. - CVE-2022-50409: net: If sock is dead don't access sock's skwq in...

Security update for the Linux Kernel (Live Patch 43 for SUSE Linux Enterprise 15 SP4)

This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.173 fixes various security issues The following security issues were fixed: CVE-2022-50233: bluetooth: device name can cause reading kernel memory by not supplying terminal \0 bsc1249242. CVE-2022-50327: ACPI: processor: idle: Che...

ROS-20260119-7354

A vulnerability in the ndiscsendskb function of the net/ipv6/ndisc.c module of the Linux kernel IPv6 protocol implementation is related to the reuse of previously freed memory. Exploitation of the vulnerability may allow an intruder to affect confidentiality, integrity and availability of protect...

UBUNTU-CVE-2025-71080

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix a BUG in rt6getpcpuroute under PREEMPTRT On PREEMPTRT kernels, after rt6getpcpuroute returns NULL, the current task can be preempted. Another task running on the same CPU may then execute rt6makepcpuroute and successful...

Linux Distros Unpatched Vulnerability : CVE-2025-71098

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ip6gre: make ip6greheader robust Over the years, syzbot found many ways to crash the kernel in ip6greheader 1. This involves team or bonding drivers ability to...

CVE-2023-53831

In the Linux kernel, the following vulnerability has been resolved: net: read sk-skfamily once in skmcloop syzbot is playing with IPV6ADDRFORM quite a lot these days, and managed to hit the WARNONONCE1 in skmcloop We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at...

EUVD-2025-33754

A missing validation check in FreeRTOS-Plus-TCP's ICMPv6 packet processing code can lead to an out-of-bounds read when receiving ICMPv6 packets of certain message types which are smaller than the expected size. These issues only affect applications using IPv6. Users should upgrade to the latest...