EUVD-2026-45565

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume transport header in iptunnelpmtudcheckicmp In some cases, iptunnelpmtudcheckicmp can be called while skb transport header is not set. This triggers an out-of-bound access, because typeofskb-transportheader0...

CVE-2026-63992 tunnels: do not assume transport header in iptunnel_pmtud_check_icmp()

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume transport header in iptunnelpmtudcheckicmp In some cases, iptunnelpmtudcheckicmp can be called while skb transport header is not set. This triggers an out-of-bound access, because typeofskb-transportheader0...

EUVD-2026-45563

In the Linux kernel, the following vulnerability has been resolved: bonding: refuse to enslave CAN devices syzbot reported a kernel paging request crash in canrxunregister inside net/can/afcan.c. The crash occurs because a virtual CAN device vxcan is being enslaved to a bonding master. During the...

CVE-2026-63990 bonding: refuse to enslave CAN devices

In the Linux kernel, the following vulnerability has been resolved: bonding: refuse to enslave CAN devices syzbot reported a kernel paging request crash in canrxunregister inside net/can/afcan.c. The crash occurs because a virtual CAN device vxcan is being enslaved to a bonding master. During the...

CVE-2026-63990 bonding: refuse to enslave CAN devices

In the Linux kernel, the following vulnerability has been resolved: bonding: refuse to enslave CAN devices syzbot reported a kernel paging request crash in canrxunregister inside net/can/afcan.c. The crash occurs because a virtual CAN device vxcan is being enslaved to a bonding master. During the...

CVE-2026-63990

In CVE-2026-63990, the Linux kernel bonding code incorrectly allowed enslaving CAN devices (including vxcan) to a bonding master, which mutated CAN private state (can_ml_priv) rather than Ethernet-like structures. This caused a kernel paging request crash in can_rx_unregister() and potential memo...

EUVD-2026-45754

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...

CVE-2026-63981

CVE-2026-63981 — Linux kernel net/sched act_mirred blockcast recursion fix . The issue arises in tcf_mirred_act() where, on a blockcast path (tcfm_blockid != 0), the recursion counter sched_mirred_nest isn’t incremented before calling tcf_blockcast(), allowing MIRRED_NEST_LIMIT to be bypassed and...

CVE-2026-63922 ipv6: exthdrs: refresh nh after handling HAO option

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

CVE-2026-63922

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

CVE-2026-63922 ipv6: exthdrs: refresh nh after handling HAO option

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

CVE-2026-63922

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

CVE-2026-63922

Summary: CVE-2026-63922 affects the Linux kernel IPv6 ext hdr processing. The root cause is that ip6_dest_hao() can call pskb_expand_head() on a cloned skb, which may move the skb head and invalidate a cached network header pointer used while walking IPv6 TLVs. The fix refreshes the cached networ...

EUVD-2026-45695

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

EUVD-2026-45694

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6siocdevprivate. After patch 1/2 in this series, vti6update unlinks and relinks the tunnel through t-net. vti6siocdevprivate still uses devnetdev for the collision lookup. For a tunnel moved through...

CVE-2026-63919

The CVE-2026-63919 entry concerns the Linux kernel's xfrm input path and deferred transport reinjection. The vulnerability stems from storing a struct net pointer in skb->cb and later using it in xfrm_trans_reinject() without ensuring the netns lifetime, risking dereferencing a torn-down names...

CVE-2026-63919

In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb-cb and uses it later from xfrmtransreinject. That pointer must stay valid until the deferred callback run...

EUVD-2026-45692

In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb-cb and uses it later from xfrmtransreinject. That pointer must stay valid until the deferred callback run...

CVE-2026-63919 xfrm: input: hold netns during deferred transport reinjection

In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb-cb and uses it later from xfrmtransreinject. That pointer must stay valid until the deferred callback run...

CVE-2026-63919 xfrm: input: hold netns during deferred transport reinjection

In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb-cb and uses it later from xfrmtransreinject. That pointer must stay valid until the deferred callback run...