RHEL 9 : kernel-rt (RHSA-2026:71606)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:71606 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

kernel: net: tun: bound receive headroom

A flaw was found in the Linux kernel's TUN/TAP driver. An integer underflow vulnerability exists in the tungetuser function when processing oversized headroom requests. This can occur if Open vSwitch OVS propagates an excessively large headroom request to the TUN or TAP device. Successful...

Important: Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

ALSA-2026:71016 Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: drm/amdgpu: Fix use-after-free race in VM acquire CVE-2026-43370 kernel: mac802154: llsec: add skbcowdata before in-place crypto...

ALSA-2026:71213 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: drm/amdgpu: Fix use-after-free race in VM acquire CVE-2026-43370 kernel: mac802154: llsec: add skbcowdata before in-place crypto CVE-2026-63831 kernel: sctp: don't free the ASCONF's own...

Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: drm/amdgpu: Fix use-after-free race in VM acquire CVE-2026-43370 kernel: mac802154: llsec: add skbcowdata before in-place crypto...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: drm/amdgpu: Fix use-after-free race in VM acquire CVE-2026-43370 kernel: mac802154: llsec: add skbcowdata before in-place crypto CVE-2026-63831 kernel: sctp: don't free the ASCONF's own...

Linux kernel TUN/TAP Buffer Overflow DoS

The vulnerability of the tungetuser and tunxdpone functions in the drivers/net/tun.c file of the Linux virtual network interface TUN/TAP driver leads to a lack of memory release after the effective lifespan of these functions has ended. Exploiting this vulnerability can allow an attacker to cause...

Exploit for CVE-2026-81000

⚡ CVE-2026-81000 - TUNderflow Linux Kernel TUN/TAP Rece...

Linux kernel TUN Privilege Escalation

The vulnerability of the tungetuser function in the Linux kernel’s TUN network driver is related to buffer overflow attacks. Exploiting this vulnerability can allow an attacker to gain increased privileges...

TUNderflow

TUNderflow CVE-2026-81000 Writeuphttps://heyitsas.im/pos...

Important: kernel-livepatch-6.18.39-79.141

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: xfrm: ah6: validate routing header segmentsleft CVE-2026-80844 In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom CVE-2026-81000 Affected Packages:...

Important: kernel-livepatch-6.12.94-123.190

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.1.186-228.374

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: xfrm: ah6: validate routing header segmentsleft CVE-2026-80844 In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom CVE-2026-81000 Affected Packages:...

Important: kernel-livepatch-6.12.94-123.192

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.1.176-221.367

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.18.36-69.138

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.12.94-123.180

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.1.177-224.371

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...

Important: kernel-livepatch-6.18.36-69.136

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader CVE-2026-68121 In the Linux kernel, the following vulnerability has been resolved: sctp: prevent peer transport count overflow CVE-2026-74469 In the Linux kernel, t...