CVE-2026-53074

Summary of CVE-2026-53074 (Linux kernel) : The issue occurs in the bpf_prog_test_run_skb() path where the code may access ip_hdr(skb) or ipv6_hdr(skb) for IPv4/IPv6 inputs even when only an Ethernet header is present. If the Ethernet frame carries an IPv4/IPv6 EtherType but the Layer 3 header is ...

UBUNTU-CVE-2026-52940

In the Linux kernel, the following vulnerability has been resolved: tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb, virtionethdrtnlfromskb only initializes the first 10 bytes sizeofstruct...

EUVD-2026-38710

In the Linux kernel, the following vulnerability has been resolved: tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb, virtionethdrtnlfromskb only initializes the first 10 bytes sizeofstruct...

PT-2026-51733

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists where the tun put user function declares a virtio net hdr v1 hash tunnel structure on the stack without initializing it to zero. For non-tunnel socket buffers skb, the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: geneve: Make sure to pull the inner header in geneverx. syzbot triggered a bug in geneverx 1 The issue is similar to the one I fixed in commit 8d975c15c0cd: "ip6tunnel: Make sure to pull the inner header in ip6tnlrcv" We need ...

SUSE CVE-2026-31700

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer shared with userspace. The kernel validates the header via...

Linux Distros Unpatched Vulnerability : CVE-2026-31700

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 TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer...

CVE-2026-31700

A flaw was found in the Linux kernel. A Time-of-check to Time-of-use TOCTOU race condition exists in the tpacketsnd function when PACKETVNETHDR is enabled. A local user can exploit this by modifying the vnethdr fields in the mmap'd TX ring buffer between validation and use, thereby bypassing safe...

CVE-2026-31700 net/packet: fix TOCTOU race on mmap'd vnet_hdr in tpacket_snd()

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer shared with userspace. The kernel validates the header via...

EUVD-2026-26509

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix TOCTOU race on mmap'd vnethdr in tpacketsnd In tpacketsnd, when PACKETVNETHDR is enabled, vnethdr points directly into the mmap'd TX ring buffer shared with userspace. The kernel validates the header via...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007567)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007567 advisory. In the Linux kernel, the following vulnerability has been resolved: net: iptunnel: make sure to pull inner header in iptunnelrcv Apply the same fix than ones found i...

SUSE CVE-2023-54114

In the Linux kernel, the following vulnerability has been resolved: net: nsh: Use correct macoffset to unwind gso skb in nshgsosegment As the call trace shows, skbpanic was caused by wrong skb-macheader in nshgsosegment: invalid opcode: 0000 1 PREEMPT SMP KASAN PTI CPU: 3 PID: 2737 Comm: syz Not...

UBUNTU-CVE-2023-54114

In the Linux kernel, the following vulnerability has been resolved: net: nsh: Use correct macoffset to unwind gso skb in nshgsosegment As the call trace shows, skbpanic was caused by wrong skb-macheader in nshgsosegment: invalid opcode: 0000 1 PREEMPT SMP KASAN PTI CPU: 3 PID: 2737 Comm: syz Not...

UBUNTU-CVE-2023-54051

In the Linux kernel, the following vulnerability has been resolved: net: do not allow gsosize to be set to GSOBYFRAGS One missing check in virtionethdrtoskb allowed syzbot to crash kernels again 1 Do not allow gsosize to be set to GSOBYFRAGS 0xffff, because this magic value is used by the kernel....

CVE-2023-54114

CVE-2023-54114 — Linux kernel (net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()) A Linux kernel vulnerability arises in nsh_gso_segment() where the mac_header is restored using an incorrect mac_offset, derived from the network_header difference (nhoff). The root cause is th...

SUSE CVE-2025-40282

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: reset link-local header on ipv6 recv path Bluetooth 6lowpan.c netdev has headerops, so it must set link-local header for RX skb, otherwise things crash, eg. with AFPACKET SOCKRAW Add missing skbresetmacheader...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-392950)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-392950 advisory. In the Linux kernel, the following vulnerability has been resolved: net: iptunnel: make sure to pull inner header in iptunnelrcv Apply the same fix than ones found i...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-391262)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-391262 advisory. In the Linux kernel, the following vulnerability has been resolved: gtp: pull network headers in gtpdevxmit syzbot/KMSAN reported use of uninit-value in getdevxmit 1...

EUVD-2025-25579

Malicious code in bioql PyPI...

PT-2025-38458

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to the handling of transport header magic values within the skb partial csum set function. Specifically, the code does not prevent callers from...