UBUNTU-CVE-2026-80735

In the Linux kernel, the following vulnerability has been resolved: ovpn: ensure socket is owned by ovpn before deref skuserdata Some subsystems, like BPF SOCKMAP, set skuserdata without actually setting the encaptype. For this reason, we must make sure that the type is the one ovpn expects befor...

UBUNTU-CVE-2026-80738

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

EUVD-2026-70342

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738

CVE-2026-80738 affects the Linux kernel BPF subsystem. The functions bpf_tcp_gen_syncookie and bpf_tcp_check_syncookie accept a socket pointer typed as ARG_PTR_TO_BTF_ID_SOCK_COMMON but access sk->sk_protocol without verifying the socket is a full socket rather than a mini-socket. The fix chec...

CVE-2026-80738 bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738 bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

EUVD-2026-70339

In the Linux kernel, the following vulnerability has been resolved: ovpn: ensure socket is owned by ovpn before deref skuserdata Some subsystems, like BPF SOCKMAP, set skuserdata without actually setting the encaptype. For this reason, we must make sure that the type is the one ovpn expects befor...

CVE-2026-80735

CVE-2026-80735 affects the ovpn (OpenVPN) module in the Linux kernel . The root cause is a missing type-check: subsystems such as BPF SOCKMAP can set sk_user_data without setting the expected encap_type, and the ovpn driver dereferences sk_user_data without verifying the socket is actually owned ...

CVE-2026-80735 ovpn: ensure socket is owned by ovpn before deref sk_user_data

In the Linux kernel, the following vulnerability has been resolved: ovpn: ensure socket is owned by ovpn before deref skuserdata Some subsystems, like BPF SOCKMAP, set skuserdata without actually setting the encaptype. For this reason, we must make sure that the type is the one ovpn expects befor...

CVE-2026-80735 ovpn: ensure socket is owned by ovpn before deref sk_user_data

In the Linux kernel, the following vulnerability has been resolved: ovpn: ensure socket is owned by ovpn before deref skuserdata Some subsystems, like BPF SOCKMAP, set skuserdata without actually setting the encaptype. For this reason, we must make sure that the type is the one ovpn expects befor...

CVE-2026-53706

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

SUSE CVE-2026-74344

In the Linux kernel, the following vulnerability has been resolved: bpf: Clear rb node linkage when freeing bpfrbroot bpfrbrootfree detaches the root by copying the current rbrootcached and then replacing the live root with RBROOTCACHED. It then walks the copied root and drops each object contain...

CVE-2026-80669

A flaw was found in the Linux kernel. A local attacker with the ability to load BPF Berkeley Packet Filter LSM Linux Security Module programs could exploit a vulnerability in the xfrmdecodesession hook. This could lead to a system panic, resulting in a Denial of Service DoS...

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftcounter: serialize reset with spinlock CVE-2026-45897 In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path CVE-2026-45901 In...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-2071)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2071 advisory. In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. CVE-2026-53005 In the Linux kernel, the following vulnerability has been...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-2106)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2106 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftcounter: serialize reset with spinlock CVE-2026-45897 In the Linux kernel, the following vulnerability has bee...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftcounter: serialize reset with spinlock CVE-2026-45897 In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path CVE-2026-45901 In...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. CVE-2026-53005 In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing locking around retry adding new subreqs CVE-2026-64068 In the Linu...

Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-2110)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2110 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftcounter: serialize reset with spinlock CVE-2026-45897 In the Linux kernel, the following vulnerability has bee...