CVE-2026-80793

A flaw was found in the Linux kernel's IPv4 fragmentation handling. When processing IPv4 packets, if the Maximum Transmission Unit MTU is set to an unusually small value, the kernel's fragmentation logic can enter an infinite loop. This loop causes the system to continuously allocate and transmit...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fixed an issue where stack out-of-bounds reading occurred when fragmenting IPv4 packets. When running openvswitch on kernels built with KASAN, it is possible to observe the following error during the testing of IPv4...

SUSE CVE-2026-80793

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

AZL-99552 CVE-2026-80793 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

CVE-2026-80793

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

CVE-2026-80793

This Linux kernel vulnerability affects the IPv4 fragmentation path in ip_do_fragment() . When the effective MTU is smaller than the IPv4 header length plus 8, the function passes a zero-length payload to ip_frag_next() , causing the fragmentation state to stall indefinitely. The result is a soft...

CVE-2026-80793 ipv4: reject undersized MTUs in ip_do_fragment()

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

EUVD-2026-71436

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

CVE-2026-80793 ipv4: reject undersized MTUs in ip_do_fragment()

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

CVE-2026-80793: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to ipfragnext. If the effective MTU is smaller than hlen + 8, ipfragnext round...

PT-2026-85634

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the IPv4 implementation where the ip do fragment function subtracts the IPv4 header length from the effective Maximum Transmission Unit MTU and passes the result to ip...

Linux Distros Unpatched Vulnerability : CVE-2026-80793

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv4: reject undersized MTUs in ipdofragment ipdofragment subtracts the IPv4 header length from the effective MTU and passes the resulting payload MTU to...

SUSE SLES15 Security Update : kernel (Live Patch 26 for SUSE Linux Enterprise 15 SP6) (SUSE-SU-2026:3344-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3344-1 advisory. This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.112 fixes various security issues: The following security issues were fixed: -...

SUSE-SU-2026:23019-1 Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-39.1 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. -...

SUSE-SU-2026:23013-1 Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-45.1 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. -...

SUSE-SU-2026:23014-1 Security update for the Linux Kernel (Live Patch 21 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-44.1 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. -...

SUSE-SU-2026:22961-1 Security update for the Linux Kernel RT (Live Patch 14 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.35.1 fixes various security issues: The following security issues were fixed: - CVE-2026-53359: KVM: x86: Fix shadow paging use-after-free due to unexpected role bsc1270060. - CVE-2026-53366: ipv4: account for fraggap on the paged...

SUSE-SU-2026:3344-1 Security update for the Linux Kernel (Live Patch 26 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.112 fixes various security issues: The following security issues were fixed: - CVE-2026-46113: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN bsc1266970. - CVE-2026-53359: KVM: x86: Fix shadow paging use-after-free...

SUSE-SU-2026:3343-1 Security update for the Linux Kernel (Live Patch 6 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.22 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. ...

Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1936)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1936 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path CVE-2026-53362 In the Linux kernel, the following vulnerability has...