PT-2026-82968

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf conntrack expect: use conntrack GC to reap expectations This patch replaces the timer API by GC worker approach for expectations, as it already happened in many other subsystems. Use the existing conntrack GC worker...

PT-2026-82903

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf conntrack irc: fix parse dcc off-by-one OOB read parse dcc treats data end as an inclusive end pointer, but its only caller passes data limit = ib ptr + datalen, which points one past the last valid byte. The newlin...

SUSE-SU-2026:22763-1 Security update for the Linux Kernel (Live Patch 11 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.32.1 fixes various security issues The following security issues were fixed: - CVE-2026-31505: iavf: fix out-of-bounds writes in iavfgetethtoolstats bsc1263094. - CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of...

Security update for the Linux Kernel (Live Patch 10 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.34 fixes various security issues The following security issues were fixed: CVE-2026-23393: bridge: cfm: Fix race condition in peermep deletion bsc1260524. CVE-2026-31505: iavf: fix out-of-bounds writes in iavfgetethtoolstats...

SUSE-SU-2026:2920-1 Security update for the Linux Kernel (Live Patch 43 for SUSE Linux Enterprise 15 SP4)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.173 fixes various security issues The following security issues were fixed: - CVE-2025-71089: iommu: disable SVA when CONFIGX86 is set bsc1256615. - CVE-2026-23393: bridge: cfm: Fix race condition in peermep deletion bsc1260524. -...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

Linux Distros Unpatched Vulnerability : CVE-2026-53349

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nfconntrack: destroy stale expectfn expectations on unregister NAT helpers such as nfnath323 store a raw pointer to module text in exp-expectfn e.g...

UBUNTU-CVE-2026-53349

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrack: destroy stale expectfn expectations on unregister NAT helpers such as nfnath323 store a raw pointer to module text in exp-expectfn e.g. ipnatq931expect. nfcthelperexpectfnunregister only unlinks the callba...

kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackhelper. When a connection tracking helper is unregistered, its associated expectations are not properly cleaned up. This oversight can lead to a use-after-free vulnerability, where the system attempts t...

CVE-2026-52986 netfilter: nf_conntrack_sip: don't use simple_strtoul

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: don't use simplestrtoul Replace unsafe port parsing in epaddrlen, ctsipparseheaderuri, and ctsipparserequest with a new sipparseport helper that validates each digit against the buffer limit, eliminatin...

RHEL 9 : kernel (RHSA-2026:27713)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:27713 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: netfilter: nfconntrackh323:...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE CVE-2026-23401 In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriti...

SUSE CVE-2026-43233

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackh323: fix OOB read in decodechoice In decodechoice, the boundary check before getlen uses the variable len, which is still 0 from its initialization at the top of the function: unsigned int type, ext, len = ...

CVE-2026-43233

CVE-2026-43233 affects the Linux kernel nf_conntrack_h323 decoder (decode_choice), where a boundary check incorrectly used an uninitialized length and may read past the bitstream end, enabling a remote heap-buffer-overflow via a crafted Q.931 SETUP message to port 1720. The public disclosures des...

CVE-2026-43233

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackh323: fix OOB read in decodechoice In decodechoice, the boundary check before getlen uses the variable len, which is still 0 from its initialization at the top of the function: unsigned int type, ext, len = ...

CVE-2026-31496 netfilter: nf_conntrack_expect: skip expectations in other netns via proc

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackexpect: skip expectations in other netns via proc Skip expectations that do not reside in this netns. Similar to e77e6ff502ea "netfilter: conntrack: do not dump other netns's conntrack entries via proc"...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013138)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013138 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: Avoid nfcthelperhash uses after free If nfconntrackinitstart fails for...

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...