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

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. 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...

kernel: Kernel: Privilege escalation via uninitialized data in vmci transport packet

A flaw was found in the Linux kernel's vsock/vmci component. A local attacker with low privileges could exploit a vulnerability where the vmcitransportpacket structure is not properly cleared during initialization. This can lead to the use of uninitialized data, potentially allowing for informati...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: VMCI: Check context-notifypage after calling getuserpagesfast to avoid GPF. The call to getuserpagesfast in vmcihostunlockedioctl may return NULL for context-notifypage, causing a GPF. To avoid this, check that context-notifypage...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: vmcihost: A race condition in vmcihostpoll caused by a General Protection Fault GPF has been fixed. During fuzzing, a General Protection Fault was observed in vmcihostpoll. The General Protection Fault occurred, likely due to...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: misc/vmwvmci: fixed an infoleak in vmcihostdoreceivedatagram The struct vmcieventqp allocated by qpnotifypeer contains padding, which may carry uninitialized data to the user space, as observed by KMSAN: BUG: KMSAN:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: VMCI: Fixed a runtime warning from memcpy in dgdispatchashost. Syzkaller encountered a “WARNING in dgdispatchashost” bug. memcpy: A field-spanning write was detected size 56 for a single field “&dginfo-msg” in...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100142)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100142 advisory. In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix skackbacklog leak on failed handshake When vmcitransportrecvconnectingserver...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100581)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100581 advisory. In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserve...

RHEL 9 : kernel (RHSA-2026:44385)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:44385 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: VMCI: Fix use-after-free when...

SUSE CVE-2026-64115

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

CVE-2026-64115

A flaw was found in the vsock/vmci component of the Linux kernel. A remote attacker could exploit a Use-After-Free UAF vulnerability when a peer resets a connection during the handshake process. This occurs because the system incorrectly handles reset packets, leading to a pending socket being le...

Linux Distros Unpatched Vulnerability : CVE-2026-64115

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: er...

CVE-2026-64115

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

EUVD-2026-45800

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

CVE-2026-64115

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

CVE-2026-64115 vsock/vmci: fix UAF when peer resets connection during handshake

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmcitransportrecvconnectingserver returned err = 0 for a peer RST in its default switch arm: err = pkt-type == VMCITRANSPORTPACKETTYPERST ? 0 : -EINVAL; That made...

PT-2026-61432

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the vsock/vmci component. The vmci transport recv connecting server function incorrectly returns a success value when a peer sends a reset RST packet...

Linux Distros Unpatched Vulnerability : CVE-2026-53181

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vsock/vmci: fix skackbacklog leak on failed handshake When vmcitransportrecvconnectingserver returns an error, vmcitransportrecvlisten calls vsockremovepending...

SUSE CVE-2026-53181

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix skackbacklog leak on failed handshake When vmcitransportrecvconnectingserver returns an error, vmcitransportrecvlisten calls vsockremovepending but never calls skacceptqremoved. This leaves skackbacklog incremente...

UBUNTU-CVE-2026-53181

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix skackbacklog leak on failed handshake When vmcitransportrecvconnectingserver returns an error, vmcitransportrecvlisten calls vsockremovepending but never calls skacceptqremoved. This leaves skackbacklog incremente...