EUVD-2026-95534

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6trpfilter: reject routes without inet6dev ip6routelookup can return an error-free route whose rt6iidev is NULL. Lowering an external nexthop device's MTU below IPV6MINMTU tears down its inet6dev while fib6ifdown...

CVE-2026-98379

The Linux kernel contains a vulnerability in the netfilter: ip6t_rpfilter component. The ip6_route_lookup() function can return a route where rt6i_idev is NULL if an external nexthop device's MTU is lowered below IPV6_MIN_MTU, causing the inet6_dev to be torn down while the route remains in the F...

CVE-2026-98378 bpf: Skip unsettled links in link iterator

In the Linux kernel, the following vulnerability has been resolved: bpf: Skip unsettled links in link iterator bpflinkprime inserts a link into linkidr before anoninodegetfile succeeds and before bpflinksettle publishes the ID in link-id. bpflinkbyid treats such an ID-zero link as unsettled, but...

EUVD-2026-95533

In the Linux kernel, the following vulnerability has been resolved: bpf: Skip unsettled links in link iterator bpflinkprime inserts a link into linkidr before anoninodegetfile succeeds and before bpflinksettle publishes the ID in link-id. bpflinkbyid treats such an ID-zero link as unsettled, but...

CVE-2026-98378

The Linux kernel contains a vulnerability in the bpf subsystem where the link iterator fails to skip unsettled links. Specifically, bpf_link_prime() inserts a link into link_idr before bpf_link_settle() publishes its ID. While bpf_link_by_id() correctly treats ID-zero links as unsettled, the link...

CVE-2026-98378

In the Linux kernel, the following vulnerability has been resolved: bpf: Skip unsettled links in link iterator bpflinkprime inserts a link into linkidr before anoninodegetfile succeeds and before bpflinksettle publishes the ID in link-id. bpflinkbyid treats such an ID-zero link as unsettled, but...

CVE-2026-98378 bpf: Skip unsettled links in link iterator

In the Linux kernel, the following vulnerability has been resolved: bpf: Skip unsettled links in link iterator bpflinkprime inserts a link into linkidr before anoninodegetfile succeeds and before bpflinksettle publishes the ID in link-id. bpflinkbyid treats such an ID-zero link as unsettled, but...

CVE-2026-98376 bpf: Use array_map_meta_equal for percpu array inner map replacement

In the Linux kernel, the following vulnerability has been resolved: bpf: Use arraymapmetaequal for percpu array inner map replacement percpuarraymapops.mapmetaequal points to the generic bpfmapmetaequal, which does not compare maxentries. When a percpu array serves as an inner map, replacing it...

CVE-2026-98376

The Linux kernel contains a vulnerability in the eBPF subsystem where percpu_array_map_ops.map_meta_equal incorrectly points to bpf_map_meta_equal(). Because the latter fails to compare max_entries, a percpu array used as an inner map can be replaced with a smaller one, bypassing size checks. Thi...

EUVD-2026-95531

In the Linux kernel, the following vulnerability has been resolved: bpf: Use arraymapmetaequal for percpu array inner map replacement percpuarraymapops.mapmetaequal points to the generic bpfmapmetaequal, which does not compare maxentries. When a percpu array serves as an inner map, replacing it...

EUVD-2026-95532

In the Linux kernel, the following vulnerability has been resolved: vlan: require the MAC header to be present in vlaninsertinnertag vlaninsertinnertag only guarantees head room via skbcowhead, never that maclen bytes of MAC header are present. Its ETHHLEN wrappers - vlaninserttag under...

CVE-2026-98377 vlan: require the MAC header to be present in __vlan_insert_inner_tag()

In the Linux kernel, the following vulnerability has been resolved: vlan: require the MAC header to be present in vlaninsertinnertag vlaninsertinnertag only guarantees head room via skbcowhead, never that maclen bytes of MAC header are present. Its ETHHLEN wrappers - vlaninserttag under...

CVE-2026-98376

In the Linux kernel, the following vulnerability has been resolved: bpf: Use arraymapmetaequal for percpu array inner map replacement percpuarraymapops.mapmetaequal points to the generic bpfmapmetaequal, which does not compare maxentries. When a percpu array serves as an inner map, replacing it...

CVE-2026-98377

In the Linux kernel, the following vulnerability has been resolved: vlan: require the MAC header to be present in vlaninsertinnertag vlaninsertinnertag only guarantees head room via skbcowhead, never that maclen bytes of MAC header are present. Its ETHHLEN wrappers - vlaninserttag under...

CVE-2026-98376 bpf: Use array_map_meta_equal for percpu array inner map replacement

In the Linux kernel, the following vulnerability has been resolved: bpf: Use arraymapmetaequal for percpu array inner map replacement percpuarraymapops.mapmetaequal points to the generic bpfmapmetaequal, which does not compare maxentries. When a percpu array serves as an inner map, replacing it...

CVE-2026-98377

The Linux kernel contains a vulnerability in the vlan component where the __vlan_insert_inner_tag() helper function fails to verify the presence of a MAC header before rewriting the first 16 bytes. Specifically, on IFF_TUN devices with hard_header_len == 0, the system may accept a one-byte AF_PAC...

CVE-2026-98377 vlan: require the MAC header to be present in __vlan_insert_inner_tag()

In the Linux kernel, the following vulnerability has been resolved: vlan: require the MAC header to be present in vlaninsertinnertag vlaninsertinnertag only guarantees head room via skbcowhead, never that maclen bytes of MAC header are present. Its ETHHLEN wrappers - vlaninserttag under...

K000163620: Linux Kernel vulnerabilities CVE-2026-23112 and CVE-2026-43493

Security Advisory Description CVE-2026-23112 In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmettcpbuildpduiovec nvmettcpbuildpduiovec could walk past cmd-req.sg when a PDU length or offset exceeds sgcnt and then use bogus sg-length/offset...

CVE-2026-98289

A flaw was found in the Linux kernel's UNIX domain socket afunix subsystem. A logic error in the socket garbage collection algorithm can prevent cyclical socket references from being properly identified and reclaimed. A local user could exploit this flaw to cause a resource leak, potentially...

CVE-2026-98239

A flaw was found in the Linux kernel's LAN743x network device driver. This vulnerability allows an attacker capable of transmitting network traffic to an affected system to cause a Denial of Service DoS or memory corruption. The issue occurs because the driver attempts to update checksum...