SUSE CVE-2026-43116

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp-master invalid. To access exp-master safely: - Grab the...

EUVD-2026-27641

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp-master invalid. To access exp-master safely: - Grab the...

CVE-2026-43116

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

CVE-2026-43116

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp-master invalid. To access exp-master safely: - Grab the...

CVE-2026-43116

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp-master invalid. To access exp-master safely: - Grab the...

CVE-2026-43116

The CVE-2026-43116 issue affects the Linux kernel’s netfilter ctnetlink master conntrack handling. The root cause is insufficient locking around the master conntrack object, which can become invalid while still referenced (exp->master). The fix extends the nf_conntrack_expect_lock and the spin...

CVE-2026-43116 netfilter: ctnetlink: ensure safe access to master conntrack

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp-master invalid. To access exp-master safely: - Grab the...

PT-2026-37426

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw in the netfilter ctnetlink component allows for unsafe access to the master conntrack object. Holding a reference to the expectation is insufficient because the master conntrack...

Linux Distros Unpatched Vulnerability : CVE-2026-43116

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go awa...

SUSE CVE-2026-43025

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ignore explicit helper on new expectations Use the existing master conntrack helper, anything else is not really supported and it just makes validation more complicated, so just ignore what helper userspace...

CVE-2026-43025

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ignore explicit helper on new expectations Use the existing master conntrack helper, anything else is not really supported and it just makes validation more complicated, so just ignore what helper userspace...

CVE-2026-43025 netfilter: ctnetlink: ignore explicit helper on new expectations

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ignore explicit helper on new expectations Use the existing master conntrack helper, anything else is not really supported and it just makes validation more complicated, so just ignore what helper userspace...

EUVD-2026-26624

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ignore explicit helper on new expectations Use the existing master conntrack helper, anything else is not really supported and it just makes validation more complicated, so just ignore what helper userspace...

CVE-2026-43025

CVE-2026-43025 affects the Linux kernel netfilter component. A local attacker can trigger a slab-out-of-bounds read when creating new expectations by supplying a non-master conntrack helper, potentially enabling information disclosure from kernel memory. The issue is described across multiple sou...

PT-2026-36442

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ignore explicit helper on new expectations Use the existing master conntrack helper, anything else is not really supported and it just makes validation more complicated, so just ignore what helper userspace...

EUVD-2026-21932

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackexpect: use expect-helper Use expect-helper in ctnetlink and /proc to dump the helper name. Using nfcthelp without holding a reference to the master conntrack is unsafe. Use exp-master-helper in ctnetlink pa...

CVE-2026-31414

CVE-2026-31414 (Linux kernel netfilter nf_conntrack_expect) The vulnerability arises from using nfct_help() without holding a reference to the master conntrack, leading to unsafe references when the helper is dumped via ctnetlink and /proc. The fix switches to using exp->master->helper in t...