CVE-2026-74665

CVE-2026-74665 affects the Linux kernel 's generic XDP (eXpress Data Path) path. When an XDP program adjusts the fragment area, bpf_prog_run_generic_xdp() updates skb->data_len but leaves skb->len with the old fragment contribution. After a fragment shrink, skb_headlen() becomes larger than...

CVE-2026-74664 net: openvswitch: reallocate update replies for mismatched IDs

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reallocate update replies for mismatched IDs ovsflowcmdnew preallocates the optional reply skb before it takes ovsmutex and before it knows which existing flow will be updated. That is normally fine because the...

EUVD-2026-64351

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reallocate update replies for mismatched IDs ovsflowcmdnew preallocates the optional reply skb before it takes ovsmutex and before it knows which existing flow will be updated. That is normally fine because the...

CVE-2026-74664

This vulnerability affects the Linux kernel's Open vSwitch (OVS) netlink flow command handling. The root cause is in ovs_flow_cmd_new(), which preallocates the reply skb sized from the request flow identifier. When a flow update request uses a UFID that misses the UFID lookup and falls back to th...

EUVD-2026-64564

In the Linux kernel, the following vulnerability has been resolved: net: devmem: prevent net-iov / page mixing We should either have netiov or page backed frags in a single skb, otherwise it blows up down the stack. Don't allow mixing in zerocopyfillskbfromdevmem...

CVE-2026-74627 net: devmem: prevent net-iov / page mixing

In the Linux kernel, the following vulnerability has been resolved: net: devmem: prevent net-iov / page mixing We should either have netiov or page backed frags in a single skb, otherwise it blows up down the stack. Don't allow mixing in zerocopyfillskbfromdevmem...

CVE-2026-74627 net: devmem: prevent net-iov / page mixing

In the Linux kernel, the following vulnerability has been resolved: net: devmem: prevent net-iov / page mixing We should either have netiov or page backed frags in a single skb, otherwise it blows up down the stack. Don't allow mixing in zerocopyfillskbfromdevmem...

CVE-2026-74627

CVE-2026-74627 affects the Linux kernel's net: devmem component. The root cause is improper mixing of net_iov and page-backed fragments within a single skb in the zerocopy_fill_skb_from_devmem() function, which causes a crash downstream in the stack. Red Hat classifies the impact as Denial of Ser...

CVE-2026-74620

This Linux kernel vulnerability affects the net/sched subsystem, specifically the act_gact and act_police traffic control actions. The fallback control actions (TCA_GACT_PROB.paction and TCA_POLICE_RESULT) bypass the range check in tcf_action_check_ctrlact(), allowing user space to store TC_ACT_C...

CVE-2026-74612 veth: fix skb length accounting after XDP frag adjustment

In the Linux kernel, the following vulnerability has been resolved: veth: fix skb length accounting after XDP frag adjustment veth exposes non-linear skb fragments through an xdpbuff. If an XDP program adjusts the fragment area, vethxdprcvskb copies xdpfragssize back to skb-datalen but leaves...

EUVD-2026-64549

In the Linux kernel, the following vulnerability has been resolved: veth: fix skb length accounting after XDP frag adjustment veth exposes non-linear skb fragments through an xdpbuff. If an XDP program adjusts the fragment area, vethxdprcvskb copies xdpfragssize back to skb-datalen but leaves...

CVE-2026-74612 veth: fix skb length accounting after XDP frag adjustment

In the Linux kernel, the following vulnerability has been resolved: veth: fix skb length accounting after XDP frag adjustment veth exposes non-linear skb fragments through an xdpbuff. If an XDP program adjusts the fragment area, vethxdprcvskb copies xdpfragssize back to skb-datalen but leaves...

CVE-2026-74612

CVE-2026-74612 is a CRITICAL (CVSS 10.0) flaw in the Linux kernel's veth component. When an XDP program shrinks the fragment area, veth_xdp_rcv_skb() fails to update skb->len, causing skb_headlen() to exceed the actual linear area. In the UDP receive path, __skb_datagram_iter() then copies 102...

PT-2026-79710

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation skb udp tunnel segment gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb-head, the saved UDP header pointer is no longer...

PT-2026-79700

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf flow table: drop existing skb dst before skb dst set noref Incoming skbs passing through netfilter flowtable offload hooks or XFRM offload path might already carry a ref-counted dst entry assigned during earlier RX ...

Linux Distros Unpatched Vulnerability : CVE-2026-74627

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: devmem: prevent net-iov / page mixing We should either have netiov or page backed frags in a single skb, otherwise it blows up down the stack. Don't allow...

Linux Distros Unpatched Vulnerability : CVE-2026-74612

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - veth: fix skb length accounting after XDP frag adjustment veth exposes non-linear skb fragments through an xdpbuff. If an XDP program adjusts the fragment area,...

Linux Distros Unpatched Vulnerability : CVE-2026-74665

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: fix skb length accounting after generic XDP frag adjustment Generic XDP exposes non-linear skb fragments through an xdpbuff. If an XDP program adjusts the...

PT-2026-79602

In the Linux kernel, the following vulnerability has been resolved: ip6 tunnel: clear skb2-cb in ip6ip6 err ip6ip6 err clones an outer IPv6 ICMP error skb, pulls it to the quoted inner IPv6 packet, and then passes the clone to icmpv6 send. The clone still carries the outer packet's inet6 skb parm...

PT-2026-79621

In the Linux kernel, the following vulnerability has been resolved: xdp: reject clones that overrun skb shared info tailroom xdpf clone clones broadcast copies into a single page and sets frame sz to PAGE SIZE. xdp build skb from frame later treats that page like a normal XDP frame and expects th...