kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels

A flaw was found in the Linux kernel's IPv6 networking implementation, specifically within the seg6 and rpl lwtunnels. A race condition can occur when handling destination cache entries, where a NOREF no reference destination object is used after it has been freed. This use-after-free vulnerabili...

Linux Distros Unpatched Vulnerability : CVE-2026-80612

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom,...

SUSE CVE-2026-80612

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

CVE-2026-80612

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

CVE-2026-80612

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

UBUNTU-CVE-2026-80612

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

CVE-2026-80612 net: lwtunnel: Drop skb metadata before LWT encapsulation

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

EUVD-2026-67488

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

CVE-2026-80612

This Linux kernel vulnerability affects the net lwtunnel (lightweight tunnel) subsystem. When LWT encapsulation prepends outer headers, it moves skb->data over the headroom where XDP/TC skb metadata resides. Non-BPF encaps types (MPLS, Seg6, IOAM6) silently overwrite this metadata via skb_push...

CVE-2026-80612

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

CVE-2026-80612 net: lwtunnel: Drop skb metadata before LWT encapsulation

In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb-data. LWT programs cannot access the skbuff-datameta...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100370)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100370 advisory. In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a sing...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099739)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099739 advisory. In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a sing...

Linux Distros Unpatched Vulnerability : CVE-2026-31668

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a...

SUSE CVE-2026-31668

In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a single dstcache per encap route, shared between seg6inputcore and seg6outputcore. These two paths can perform the post-encap SID lookup ...

DEBIAN-CVE-2026-31668

In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a single dstcache per encap route, shared between seg6inputcore and seg6outputcore. These two paths can perform the post-encap SID lookup ...

CVE-2026-31668

In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a single dstcache per encap route, shared between seg6inputcore and seg6outputcore. These two paths can perform the post-encap SID lookup ...

EUVD-2026-25561

In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a single dstcache per encap route, shared between seg6inputcore and seg6outputcore. These two paths can perform the post-encap SID lookup ...

CVE-2026-31668 seg6: separate dst_cache for input and output paths in seg6 lwtunnel

In the Linux kernel, the following vulnerability has been resolved: seg6: separate dstcache for input and output paths in seg6 lwtunnel The seg6 lwtunnel uses a single dstcache per encap route, shared between seg6inputcore and seg6outputcore. These two paths can perform the post-encap SID lookup ...

CVE-2026-31668

The CVE-2026-31668 issue affects the Linux kernel’s seg6 lwtunnel, where a single dst_cache was shared between input and output paths. This allowed the post-encap SID lookup to be performed in different routing contexts, with the second path potentially reusing the first path’s cached data and by...