SUSE CVE-2026-53389

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of key in delasync path In tcpaodeletekey, the delasync path skips the currentkey and rnextkey validity checks present in the synchronous path, assuming these pointers are always NULL on LISTEN...

CVE-2026-53389

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of key in delasync path In tcpaodeletekey, the delasync path skips the currentkey and rnextkey validity checks present in the synchronous path, assuming these pointers are always NULL on LISTEN...

CVE-2026-53389 net/tcp-ao: fix use-after-free of key in del_async path

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of key in delasync path In tcpaodeletekey, the delasync path skips the currentkey and rnextkey validity checks present in the synchronous path, assuming these pointers are always NULL on LISTEN...

CVE-2026-53389 net/tcp-ao: fix use-after-free of key in del_async path

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of key in delasync path In tcpaodeletekey, the delasync path skips the currentkey and rnextkey validity checks present in the synchronous path, assuming these pointers are always NULL on LISTEN...

PT-2026-61094

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of key in del async path In tcp ao delete key, the del async path skips the current key and rnext key validity checks present in the synchronous path, assuming these pointers are always NULL on LIST...

SUSE CVE-2026-43384

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

Linux Distros Unpatched Vulnerability : CVE-2026-43384

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to b...

UBUNTU-CVE-2026-43384

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

CVE-2026-43384

The CVE-2026-43384 issue concerns the Linux kernel TCP Authentication Option (TCP-AO) where MACs were compared without constant-time handling. The connected documents confirm a fix was applied to make MAC comparisons constant-time, mitigating timing-attack leakage of sensitive information. The vu...

PT-2026-39045

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A timing attack issue exists in the TCP Authentication Option TCP-AO implementation. The Message Authentication Code MAC comparison was not performed in constant-time, which could allow ...

CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2024-43887

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

CVE-2024-43887

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

UBUNTU-CVE-2024-43887

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

CVE-2024-43887

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

CVE-2024-43887 net/tcp: Disable TCP-AO static key after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

CVE-2024-43887 net/tcp: Disable TCP-AO static key after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

CVE-2024-43887 net/tcp: Disable TCP-AO static key after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...

CVE-2024-43887

The CVE-2024-43887 entry relates to the Linux kernel (net/tcp) TCP-AO static key handling. The vulnerability arises because the lifetime of the TCP-AO static_key is tied to the last tcp_ao_info, and, if an RCU grace period is delayed, a CPU may observe a tcp_ao_info that is about to be deallocate...

CVE-2024-43887

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Disable TCP-AO static key after RCU grace period The lifetime of TCP-AO statickey is the same as the last tcpaoinfo. On the socket destruction tcpaoinfo ceases to be with RCU grace period, while tcp-ao static branch is...