Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ppp: Associating skb with a device at tx. Syzkaller triggered a flow dissector warning with the following code: c r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e,...

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

In the Linux kernel, the following vulnerabilities have been resolved: net: iptunnel: prevents perpetual headroom growth The issue occurred due to the following sequence of events: BUG: KASAN: use-after-free in skbflowdissect+0x19d1/0x7a50 net/core/flowdissector.c:1170 A size 1 byte read was...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/core: Fixed the ETHP1588 flow dissector. When an PTP Ethernet raw frame with a size of more than 256 bytes followed by a 0xff pattern is sent to skbflowdissect, the calculation of the nhoff value is incorrect. For example,...

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

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject variable offset alu on PTRTOFLOWKEYS For PTRTOFLOWKEYS, the checkflowkeysaccess function only uses a fixed offset for validation. However, the variable offset ptr isn’t prohibited for this type of pointer. Therefore,...

SUSE CVE-2026-80906

In the Linux kernel, the following vulnerability has been resolved: net: packet: fix wrong transportheader when sending VLAN-tagged frame In packetparseheaders, when processing a VLAN-tagged frame, skbsetnetworkheader is called to advance networkheader past the VLAN tag to the inner protocol...

AZL-99579 CVE-2026-80906 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: packet: fix wrong transportheader when sending VLAN-tagged frame In packetparseheaders, when processing a VLAN-tagged frame, skbsetnetworkheader is called to advance networkheader past the VLAN tag to the inner protocol...

AZL-99629 CVE-2026-80905 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is called first to advance networkheader past the VLAN tag to the inner...

CVE-2026-80906

CVE-2026-80906 affects the Linux kernel net: packet subsystem. In packet_parse_headers(), when handling a VLAN-tagged frame, skb_set_network_header() advances the network header past the VLAN tag before skb_probe_transport_header() is called. This leaves skb->protocol set to the outer VLAN Eth...

CVE-2026-80906 net: packet: fix wrong transport_header when sending VLAN-tagged frame

In the Linux kernel, the following vulnerability has been resolved: net: packet: fix wrong transportheader when sending VLAN-tagged frame In packetparseheaders, when processing a VLAN-tagged frame, skbsetnetworkheader is called to advance networkheader past the VLAN tag to the inner protocol...

CVE-2026-80905 net: tap: fix wrong transport_header when sending VLAN-tagged frame

In the Linux kernel, the following vulnerability has been resolved: net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is called first to advance networkheader past the VLAN tag to the inner...

EUVD-2026-71664

In the Linux kernel, the following vulnerability has been resolved: net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is called first to advance networkheader past the VLAN tag to the inner...

PT-2026-86196

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the tap get user xdp function when processing VLAN-tagged frames. The skb set network header function is called prematurely, advancing the network header past the VLAN...

Linux Distros Unpatched Vulnerability : CVE-2026-80906

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: packet: fix wrong transportheader when sending VLAN-tagged frame In packetparseheaders, when processing a VLAN-tagged frame, skbsetnetworkheader is called ...

PT-2026-86197

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists when processing VLAN-tagged frames where the transport header is incorrectly set. In the packet parse headers function, skb set network header is called to advance the...

CVE-2026-80905: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is called first to advance networkheader past the VLAN tag to the inner...

Linux Distros Unpatched Vulnerability : CVE-2026-80905

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: tap: fix wrong transportheader when sending VLAN-tagged frame In tapgetuserxdp, when processing a VLAN-tagged frame e.g. ETHP8021Q, skbsetnetworkheader is...

EUVD-2026-59343

In the Linux kernel, the following vulnerability has been resolved: flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested. This assumes the skb has a valid Ethernet header at macheader, whic...

CVE-2026-72444

CVE-2026-72444 relates to the Linux kernel flow_dissector which could read 12 bytes from eth_hdr(skb) when FLOW_DISSECTOR_KEY_ETH_ADDRS is requested, potentially operating on non-Ethernet or pathologic mac_header states (e.g., TUN in L3 mode). The fix gates the copy to only Ethernet devices (dev-...

Linux Distros Unpatched Vulnerability : CVE-2026-72444

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - flowdissector: check device type before reading ETHADDRS skbflowdissect unconditionally reads 12 bytes from ethhdrskb when FLOWDISSECTORKEYETHADDRS is requested...

PT-2026-72632

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the skb flow dissect function where it unconditionally reads 12 bytes from the Ethernet header when FLOW DISSECTOR KEY ETH ADDRS is requested. This occurs because the...