CVE-2026-43037

CVE-2026-43037 affects the Linux kernel; vulnerability arises from ip4ip6_err() using a cloned skb where the IPv6 receive path writes cb[] as inet6_skb_parm, which is then misinterpreted as IPv4 inet_skb_parm by __ip_options_echo(), causing a potential data leak/compromise. The fix includes clear...

CVE-2026-43037 ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

CVE-2026-43036 net: use skb_header_pointer() for TCPv4 GSO frag_off check

In the Linux kernel, the following vulnerability has been resolved: net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warning in gsofeaturescheck called from netifskbfeatures 1. gsofeaturescheck reads iph-fragoff to decide whether to clear mangleidfeatures...

EUVD-2026-26635

In the Linux kernel, the following vulnerability has been resolved: net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warning in gsofeaturescheck called from netifskbfeatures 1. gsofeaturescheck reads iph-fragoff to decide whether to clear mangleidfeatures...

CVE-2026-43036

Summary (CVE-2026-43036) : The issue resides in the Linux kernel networking path, where gso_features_check() read IPv4 header offsets (iph->frag_off) in a way that could dereference uninitialized data when packets are injected via PF_PACKET paths. The root cause is unsafe header dereferencing ...

CVE-2026-43036 net: use skb_header_pointer() for TCPv4 GSO frag_off check

In the Linux kernel, the following vulnerability has been resolved: net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warning in gsofeaturescheck called from netifskbfeatures 1. gsofeaturescheck reads iph-fragoff to decide whether to clear mangleidfeatures...

CVE-2026-43036

In the Linux kernel, the following vulnerability has been resolved: net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warning in gsofeaturescheck called from netifskbfeatures 1. gsofeaturescheck reads iph-fragoff to decide whether to clear mangleidfeatures...

CVE-2026-43031

The CVE concerns the Linux kernel xilinx axienet driver. When a TX packet spans multiple buffer descriptors, the current accounting in axienet_free_tx_chain summing per-BD lengths into an accumulator can lose earlier bytes if the packet completes across different polls, causing BQL to overestimat...

EUVD-2026-26631

In the Linux kernel, the following vulnerability has been resolved: NFC: pn533: bound the UART receive buffer pn532receivebuf appends every incoming byte to dev-recvskb and only resets the buffer after pn532uartrxisframe recognizes a complete frame. A continuous stream of bytes without a valid...

CVE-2026-43032

In the Linux kernel, the following vulnerability has been resolved: NFC: pn533: bound the UART receive buffer pn532receivebuf appends every incoming byte to dev-recvskb and only resets the buffer after pn532uartrxisframe recognizes a complete frame. A continuous stream of bytes without a valid...

CVE-2026-43031 net: xilinx: axienet: Fix BQL accounting for multi-BD TX packets

In the Linux kernel, the following vulnerability has been resolved: net: xilinx: axienet: Fix BQL accounting for multi-BD TX packets When a TX packet spans multiple buffer descriptors scatter-gather, axienetfreetxchain sums the per-BD actual length from descriptor status into a caller-provided...

EUVD-2026-26630

In the Linux kernel, the following vulnerability has been resolved: net: xilinx: axienet: Fix BQL accounting for multi-BD TX packets When a TX packet spans multiple buffer descriptors scatter-gather, axienetfreetxchain sums the per-BD actual length from descriptor status into a caller-provided...

CVE-2026-43029

The CVE-2026-43029 issue affects the Linux kernel MPTCP implementation. When data is received with MSG_PEEK and MSG_WAITALL, skb’s are not removed from the sk_receive_queue, causing sk_wait_data() to incorrectly report data available and potentially trigger a soft lockup. The root cause is the mi...

CVE-2026-43029 mptcp: fix soft lockup in mptcp_recvmsg()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcprecvmsg syzbot reported a soft lockup in mptcprecvmsg 0. When receiving data with MSGPEEK | MSGWAITALL flags, the skb is not removed from the skreceivequeue. This causes skwaitdata to always find...

CVE-2026-43029

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcprecvmsg syzbot reported a soft lockup in mptcprecvmsg 0. When receiving data with MSGPEEK | MSGWAITALL flags, the skb is not removed from the skreceivequeue. This causes skwaitdata to always find...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the unused skbheaderpointer function in the TCPv4 GSO fragoff check, which results in a direct dereference o...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the emacdispatchskbzc function in the icssg-prueth driver failing to copy XDP buffer data to a new skb,...

PT-2026-36456

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the emac dispatch skb zc function where a new skb is allocated via napi alloc skb but packet data from the XDP buffer is not copied into it. This results in the skb...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the mptcprecvmsg function in mptcp not keeping track of the last snooped skb when using MSGPEEK, which could...

PT-2026-36446

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcp recvmsg syzbot reported a soft lockup in mptcp recvmsg 0. When receiving data with MSG PEEK | MSG WAITALL flags, the skb is not removed from the sk receive queue. This causes sk wait data to always...