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...

CVE-2026-74696 tcp: fix TFO max_qlen accounting across reuseport migration

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...

CVE-2026-74696

CVE-2026-74696 is a Linux kernel vulnerability in TCP Fast Open (TFO) max_qlen accounting during SO_REUSEPORT listener migration . When a listener is closed and its pending TFO children are handed to a surviving listener, the fastopenq.qlen counter is charged on the old listener but uncharged on ...

PT-2026-79701

In the Linux kernel, the following vulnerability has been resolved: tcp: fix TFO max qlen accounting across reuseport migration A listener's TCP FASTOPEN max qlen stops being accurate and lets through far more pending Fast Open requests than it was configured for. This only shows up with SO...

CVE-2026-72243

A flaw was found in the Linux kernel's Security-Enhanced Linux SELinux module. When using TCP Fast Open, SELinux failed to properly check connect-related permissions. This oversight could allow a local attacker to bypass SELinux network access controls, potentially enabling unauthorized network...

CVE-2026-72243

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

UBUNTU-CVE-2026-72243

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

EUVD-2026-59142

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

CVE-2026-72243 selinux: check connect-related permissions on TCP Fast Open

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

CVE-2026-72243 selinux: check connect-related permissions on TCP Fast Open

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update...

CVE-2026-72243

CVE-2026-72243 affects the Linux kernel’s SELinux integration with TCP Fast Open. The issue was that SELinux didn’t update connect-related permissions when TCP Fast Open was introduced, potentially bypassing proper access checks. The root cause is in the socket_sendmsg() path, where the code fail...

Linux Distros Unpatched Vulnerability : CVE-2026-72243

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure...

PT-2026-72431

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description SELinux failed to verify connect-related permissions when TCP Fast Open was utilized. This occurred because the system was not updated to ensure these checks were performed during the...

apparmor: mediate the implicit connect of TCP fast open sendmsg

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SUSE CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828 apparmor: mediate the implicit connect of TCP fast open sendmsg

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

EUVD-2026-45494

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828 apparmor: mediate the implicit connect of TCP fast open sendmsg

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...