kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable

A flaw was found in the Linux kernel's netfilter synproxy module. When handling TCP timestamp options, a stale pointer can be used after memory reallocation. This can result in memory corruption, where data is written to a freed memory area, or lead to packets being sent with an incorrect checksu...

kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable

A flaw was found in the Linux kernel's netfilter synproxy module. When handling TCP timestamp options, a stale pointer can be used after memory reallocation. This can result in memory corruption, where data is written to a freed memory area, or lead to packets being sent with an incorrect checksu...

CVE-2026-80637

A flaw was found in the Linux kernel's netfilter synproxy component. This vulnerability is due to unaligned memory access when adjusting timestamp fields. An attacker could potentially trigger this flaw by sending specially crafted network traffic, leading to performance degradation or a system...

SUSE CVE-2026-80637

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

AZL-98132 CVE-2026-80637 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

CVE-2026-80637

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

CVE-2026-80637

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

UBUNTU-CVE-2026-80637

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

CVE-2026-80637

CVE-2026-80637 affects the Linux kernel 's netfilter synproxy module, where an unaligned memory access in the timestamp adjustment code could cause performance degradation or a crash on strict alignment architectures . The fix replaces direct reads/writes with get_unaligned_be32() and put_unalign...

CVE-2026-80637 netfilter: synproxy: fix unaligned memory access in timestamp adjustment

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

CVE-2026-80637

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

CVE-2026-80637 netfilter: synproxy: fix unaligned memory access in timestamp adjustment

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

EUVD-2026-67513

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory acces...

Linux Distros Unpatched Vulnerability : CVE-2026-80637

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use getunalignedbe32 and putunalignedbe32 to safely read and write the timestamp fields...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fixed an out-of-bounds condition during the parsing of TCP options. The TCP option parser in synproxy（synproxyparseoptions）could read one byte out of bounds. When the length is 1, the execution flow enters a...

kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable

A flaw was found in the Linux kernel's netfilter synproxy module. When handling TCP timestamp options, a stale pointer can be used after memory reallocation. This can result in memory corruption, where data is written to a freed memory area, or lead to packets being sent with an incorrect checksu...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100741)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100741 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099896)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099896 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100110)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100110 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: refresh tcphdr after skbensurewritable synproxytstampadjust rewrites the TCP...

CVE-2026-64007

A flaw was found in the Linux kernel's netfilter synproxy module. When handling TCP timestamp options, a stale pointer can be used after memory reallocation. This can result in memory corruption, where data is written to a freed memory area, or lead to packets being sent with an incorrect checksu...