CVE-2026-98288

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix TSO header length truncation stmmactsoxmit stores the protocol header length returned by stmmactsoheadersize in a u8. stmmactsovalidpacket admits headers up to 1023 bytes, so a header longer than 255 bytes wraps...

UBUNTU-CVE-2026-98255

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...

CVE-2026-98255

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...

EUVD-2026-93291

In the Linux kernel, the following vulnerability has been resolved: seg6: set IPSKBL3SLAVE from IP6SKBL3SLAVE on IPIP decapsulation When an SRv6 packet arrives on an interface enslaved to a VRF, vrfip6rcv sets IP6SKBL3SLAVE in IP6CB, but decapandvalidate has never set IPSKBL3SLAVE in IPCB. The bi...

CVE-2026-98299

In the Linux kernel, the following vulnerability has been resolved: tcp: do not let tcprmem be set below 4096 We can hit a division by zero crash in tcprcvbufgrow and tcprcvspaceadjust: divide error: 0000 1 PREEMPT SMP RIP: 0010:tcprcvbufgrow+0x187/0x450 net/ipv4/tcpinput.c:939 ... grow =...

EUVD-2026-93216

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix TSO header length truncation stmmactsoxmit stores the protocol header length returned by stmmactsoheadersize in a u8. stmmactsovalidpacket admits headers up to 1023 bytes, so a header longer than 255 bytes wraps...

CVE-2026-98288 net: stmmac: fix TSO header length truncation

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix TSO header length truncation stmmactsoxmit stores the protocol header length returned by stmmactsoheadersize in a u8. stmmactsovalidpacket admits headers up to 1023 bytes, so a header longer than 255 bytes wraps...

CVE-2026-98288 net: stmmac: fix TSO header length truncation

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix TSO header length truncation stmmactsoxmit stores the protocol header length returned by stmmactsoheadersize in a u8. stmmactsovalidpacket admits headers up to 1023 bytes, so a header longer than 255 bytes wraps...

CVE-2026-98255 tcp: exclude old ACKs from tcp fast path

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...

CVE-2026-98255

The Linux kernel contains a vulnerability where old Acknowledgements (ACKs) could bypass the fast path of the TCP stack. Specifically, ACKs before SND.UNA and after SND.NXT were not being properly validated, potentially allowing them to modify connection state or advance RCV.NXT prematurely. The ...

EUVD-2026-93183

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...

CVE-2026-98255

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...

CVE-2026-98255 tcp: exclude old ACKs from tcp fast path

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...

CVE-2026-98288: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix TSO header length truncation stmmactsoxmit stores the protocol header length returned by stmmactsoheadersize in a u8. stmmactsovalidpacket admits headers up to 1023 bytes, so a header longer than 255 bytes wraps...

Cisco ASA Improper Enforcement of Message Integrity During Transmission in a Communication Channel (CVE-2021-34793)

A vulnerability in the TCP Normalizer of Cisco Adaptive Security Appliance ASA Software and Firepower Threat Defense FTD Software operating in transparent mode could allow an unauthenticated, remote attacker to poison MAC address tables, resulting in a denial of service DoS vulnerability. This...

Linux Distros Unpatched Vulnerability : CVE-2026-98255

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to th...

PT-2026-106501

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.10-1.1 Description A memory leak occurs in the SMB client when an RDMA connection is established via smbd get connection but cifs get tcp session subsequently fails, such as when kthread create returns an...

PT-2026-106584

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.10-1.1 Description An issue exists in the TCP implementation where old ACKs Acknowledgment numbers before SND.UNA and ACKs after SND.NXT are not properly excluded from the TCP fast path. This allows such ACKs...

PT-2026-106629

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.10-1.1 Description A race condition exists between the tcp v6 rcv and tcp v6 do rcv functions. When a concurrent close operation changes the state from TCP LISTEN to TCP CLOSE, the function skb clone and char...

PT-2026-106617

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.10-1.1 Description An issue exists in the stmmac tso xmit function where the protocol header length returned by stmmac tso header size is stored in a u8 variable. Because stmmac tso valid packet allows header...