kernel: vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets

A flaw was found in the vmxnet3 virtual network device driver within the Linux kernel. When processing Geneve-encapsulated packets, the vmxnet3gethdrlen function can incorrectly interpret header information, leading to a mismatch between expected and actual packet protocols or IP versions. This c...

kernel: vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets

A flaw was found in the vmxnet3 virtual network device driver within the Linux kernel. When processing Geneve-encapsulated packets, the vmxnet3gethdrlen function can incorrectly interpret header information, leading to a mismatch between expected and actual packet protocols or IP versions. This c...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the tunnels section, there’s no need to assume that the macheader is set when using skbtunnelcheckpmtu. The recently added debug in commit f9aefd6b2aa3 “net: warn if mac header was not set” identified a bug in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: geneve: Fixed header validation in geneve6xmitskb. syzbot is able to trigger an uninit-value in genevexmit. Problem: While most IP tunnel helpers such as iptunnelgetdsfield use skbprotocolskb, true, pskbinetmaypull only uses...

Astra Linux – Vulnerability in OpenVSwitch

A flaw was discovered in Open vSwitch, where multiple versions are vulnerable to crafted Geneve packets, which may lead to a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: geneve: Make sure to pull the inner header in geneverx. syzbot triggered a bug in geneverx 1 The issue is similar to the one I fixed in commit 8d975c15c0cd: "ip6tunnel: Make sure to pull the inner header in ip6tnlrcv" We need ...

Astra Linux – Vulnerability in Linux

A flaw was discovered in the Linux kernel in versions prior to 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel. This allows anyone between the two endpoints to read the unencrypted...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A vulnerability was discovered in flsetgeneveopt in net/sched/clsflower.c within the Linux kernel before version 6.3.7. This vulnerability allows for an out-of-bounds write operation in the flower classifier code through TCAFLOWERKEYENCOPTSGENEVE packets. This could lead to denial of service or...

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: UDP: Do not accept non-tunnel GSO packets that land in a tunnel. When rx-udp-gro-forwarding is enabled, UDP packets may be forwarded in a way that causes them to land in a tunnel. This can lead to various issues. udpgroreceive...

CVE-2026-89555

A flaw was found in the Linux kernel's Multiprotocol Label Switching MPLS subsystem. When processing specially crafted Geneve packets through an MPLS multipath setup, a use-after-free vulnerability occurs. This issue arises because a cached header pointer hdr is not reloaded after pskbmaypull...

CVE-2026-89555

In the Linux kernel, the following vulnerability has been resolved: mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking the MPLS label stack, the hash routine caches hdr for the current label...

EUVD-2026-76466

In the Linux kernel, the following vulnerability has been resolved: mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking the MPLS label stack, the hash routine caches hdr for the current label...

CVE-2026-89555: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking the MPLS label stack, the hash routine caches hdr for the current label...

K000163251: Linux kernel vulnerability CVE-2025-21858

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in genevefinddev. syzkaller reported a use-after-free in genevefinddev 0 without repro. geneveconfigure links struct genevedev.next to netgenericnet, genevenetid-genevelist...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-001430)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-001430 advisory. In the Linux kernel, the following vulnerability has been resolved: udp: do not accept non-tunnel GSO skbs landing in a tunnel When rx-udp-gro-forwarding is enabled...

SUSE CVE-2026-72407

In the Linux kernel, the following vulnerability has been resolved: geneve: validate inner network offset in genevegrocomplete Even with both paths gated on gs-grohint, genevegrocomplete re-derives the inner dispatch type and length from the packet and the current gs-grohint, independently of...

SUSE CVE-2026-72408

In the Linux kernel, the following vulnerability has been resolved: geneve: gate GRO hint in genevegrocomplete on gs-grohint genevegroreceive reads the GRO hint through geneveskgrohintoff, which honours it only when the socket enabled IFLAGENEVEGROHINT gs-grohint. genevegrocomplete instead calls...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: geneve: The “gate GRO hint” in genevegrocomplete is handled via geneveskgrohintoff. genevegroreceive reads the GRO hint using geneveskgrohintoff, but only when the socket has the IFLAGENEVEGROHINT flag enabled gs-grohint...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: geneve: The inner network offset is validated in genevegrocomplete. Even when both paths are enabled for gs-grohint, genevegrocomplete re-derives the inner dispatch type and length from the packet and the current gs-grohint,...

CVE-2026-74523

A flaw was found in the Linux kernel's qede network driver. When a qede Network Interface Card NIC with VXLAN/GENEVE tunnel ports experiences a transmit TX timeout, a deadlock can occur in the driver's recovery process. This deadlock prevents the system's networking control plane from responding,...