CVE-2026-81003

CVE-2026-81003 affects the Linux kernel net/iucv subsystem (IBM s390 IUCV/HiperSockets). The function afiucv_hs_rcv() matched incoming frames to sockets using only four 8-byte name fields in the transport header, without verifying the ingress net_device . This allowed frames from any network devi...

EUVD-2026-76306

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays alive while the CDC slot is fetched: sockhold&smc-sk;...

CVE-2026-80929

CVE-2026-80929 affects the Linux kernel's sysctl subsystem . The cad_pid entry, which controls the PID killed on control-alt-delete and is logically global to the root namespace, was placed in pid_table[] with permissions governed by pid_table_root_permissions(). This allowed a non-root local use...

CVE-2026-80929 sysctl: move the "cad_pid" entry from pid_table[] to kern_reboot_table[]

In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cadpid" entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to pidtablerootpermissions, a non-root user can unshare pid/user namespaces and...

EUVD-2026-76252

In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cadpid" entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to pidtablerootpermissions, a non-root user can unshare pid/user namespaces and...

CVE-2026-80929 sysctl: move the "cad_pid" entry from pid_table[] to kern_reboot_table[]

In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cadpid" entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to pidtablerootpermissions, a non-root user can unshare pid/user namespaces and...

CVE-2026-80929

In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cadpid" entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to pidtablerootpermissions, a non-root user can unshare pid/user namespaces and...

CVE-2026-89060

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060 Stolostron/multicluster-observability-addon: cross-namespace secret disclosure in multicluster-observability-addon via unvalidated configuration references

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060 Stolostron/multicluster-observability-addon: cross-namespace secret disclosure in multicluster-observability-addon via unvalidated configuration references

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060

Stolostron multicluster-observability-addon is affected by a cross-namespace secret disclosure flaw. A managed-cluster identity can reference configuration resources outside its designated namespace, allowing an attacker-controlled managed cluster to access sensitive hub Secrets . The CVSS 3.1 sc...

EUVD-2026-75948

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-80983: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays alive while the CDC slot is fetched: sockhold&smc-sk;...

PT-2026-89767

Name of the Vulnerable Software and Affected Versions multicluster-observability-addon affected versions not specified Description A cross-namespace authorization flaw exists in the multicluster-observability-addon. A user with permissions to modify the ManagedClusterAddOn configuration of a...

PT-2026-90482

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the pidfd ioctl function where PIDFD GET NAMESPACE ioctls perform a filesystem credentials ptrace access check without holding the target task's exec update lock. This...

CVE-2026-89766: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing out a namespace file descriptor. The accompanying comment states tha...

PT-2026-90059

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the sysctl implementation where the cad pid entry is incorrectly placed in the pid table instead of the kern reboot table. Because of the pid table root permissions...

PT-2026-90243

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the svcrdma component where the svc rdma create function incorrectly uses kfreecma xprt when svc rdma create listen id fails. Because svc xprt init has already acquire...