34 matches found
tfo-connect-bypass
Using TCP Fast Open to Bypass Syscall-based Networking Rules CVE-2026-63828/CVE-2026-72243 PoC TCP Fast Open TFO is a method of initializing and using a TCP connection where the client can send data in the initial SYN packet sent to the server. This extension to the TCP protocol was implemented f...
SUSE CVE-2026-98374
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
DEBIAN-CVE-2026-98374
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
AZL-106734 CVE-2026-98374 affecting package kernel 6.6.157.1-1
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
CVE-2026-98374
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
CVE-2026-98374
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
UBUNTU-CVE-2026-98374
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
EUVD-2026-94323
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
CVE-2026-98374 tcp: fix use-after-free of retransmit_skb_hint in tcp_send_synack()
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
CVE-2026-98374 tcp: fix use-after-free of retransmit_skb_hint in tcp_send_synack()
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
CVE-2026-98374
A use-after-free vulnerability exists in the Linux kernel (tcp subsystem). The issue occurs in tcp_send_synack() because the function frees the original SYN skb but fails to update tp->retransmit_skb_hint, leaving it pointing to a freed skbuff_fclone_cache object. A dangling hint can then be r...
CVE-2026-98374: Undefined Security Weakness
In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it frees the original with tcprtxqueueunlinkandfree and only repairs...
PT-2026-107503
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Linux kernel within the tcp send synack function. When the function replaces a cloned SYN skb at the head of the retransmit queue with a copy, it fre...
Linux Distros Unpatched Vulnerability : CVE-2026-98374
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: fix use-after-free of retransmitskbhint in tcpsendsynack When tcpsendsynack replaces the cloned SYN skb at the head of the retransmit queue with a copy, it...
SUSE CVE-2026-80585
In the Linux kernel, the following vulnerability has been resolved: mptcp: fastopen: only mark MPTFO subflows with SYN data Passive TCP Fast Open accepts a valid-cookie SYN even when it carries no data. In that case the child socket's receive queue is intentionally left empty...
AZL-97842 CVE-2026-80585 affecting package kernel for versions less than 6.6.157.1-1
In the Linux kernel, the following vulnerability has been resolved: mptcp: fastopen: only mark MPTFO subflows with SYN data Passive TCP Fast Open accepts a valid-cookie SYN even when it carries no data. In that case the child socket's receive queue is intentionally left empty...
CVE-2026-80585
In the Linux kernel, the following vulnerability has been resolved: mptcp: fastopen: only mark MPTFO subflows with SYN data Passive TCP Fast Open accepts a valid-cookie SYN even when it carries no data. In that case the child socket's receive queue is intentionally left empty...
PT-2026-82201
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Multipath TCP MPTCP implementation regarding TCP Fast Open TFO. The function mptcp fastopen subflow synack set params incorrectly sets the is mptfo flag before...
CVE-2026-74696
In the Linux kernel, the following vulnerability has been resolved: tcp: fix TFO maxqlen accounting across reuseport migration A listener's TCPFASTOPEN maxqlen stops being accurate and lets through far more pending Fast Open requests than it was configured for. This only shows up with SOREUSEPORT...
EUVD-2026-64383
In the Linux kernel, the following vulnerability has been resolved: tcp: fix TFO maxqlen accounting across reuseport migration A listener's TCPFASTOPEN maxqlen stops being accurate and lets through far more pending Fast Open requests than it was configured for. This only shows up with SOREUSEPORT...