CVE-2026-68420

A flaw was found in the Linux kernel's xfrm component. A local user could trigger a stack-out-of-bounds read by configuring an outbound Internet Protocol Security IPsec policy with optional IPsec Flow Template Specification IPTFS templates. This vulnerability can lead to a system crash, resulting...

EUVD-2026-55612

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix stale skb-prev after async crypto steals a GSO segment skbgsosegment leaves the segment list head with -prev pointing at the last segment, an invariant validatexmitskblist relies on when it sets its tail pointer tail =...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: xfrm: The x-tunnel is deleted as soon as the x is deleted. The ipcomp fallback tunnels are currently deleted from various lists and hashtables because the last user state that relied on those fallbacks is destroyed not deleted. I...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: xfrm: Always flush the state and policy upon the NETDEVUNREGISTER event. syzbot reports that the refcount of “struct xfrmstate” is leaking. unregisternetdevice: Waiting for netdevsim0 to become free. Usage count = 2. reftracke...

UBUNTU-CVE-2026-64581

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix skdstcache double-free in xfrmuserpolicy xfrmuserpolicy clears the socket dst cache with skdstreset, i.e. the non-atomic skdstsetsk, NULL: it reads skdstcache with rcudereferenceprotected, stores NULL and dstreleases th...

CVE-2026-64581

CVE-2026-64581 is a Linux kernel vulnerability in the xfrm code. The issue arises in xfrm_user_policy(), which clears the socket destination cache (sk_dst_cache) non‑atomically, allowing a race with a per‑socket policy change that can cause the same dst to be released twice, freeing the xfrm_dst ...

CVE-2026-64566

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: propagate SKBFLSHAREDFRAG in iptfsskbaddfrags When iptfsskbaddfrags copies frag references from the source frag walk into a new SKB, it increments the page reference count via skbfragref but does not propagate...

CVE-2026-24078

Information Disclosure when IPSec negotiation fails or is not established properly during NG-eCall SIP signaling...

PT-2026-66856

Name of the Vulnerable Software and Affected Versions TR1200 version 2.4.15 TR3000 version 2.4.21 WR300 version 2.4.25 WR1200 version 2.4.23 WR1300 version 2.4.22 WR1500 version 2.3.10 WR3000 version 2.4.19 WR3600 version 2.3.16 WR6500 version 2.3.15 Description A command injection issue exists i...

CVE-2026-64522

A flaw was found in the Linux kernel's mlx5e network driver. When handling temporary Security Associations SAs for IPsec, the mlx5exfrmaddstate function incorrectly decrements a counter without a corresponding increment. This underflow in the eswitch mode block mechanism can lead to a denial of...

Important: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Fast Datapath for Red Hat Enterprise Linux 9. 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...

RHEL 9 : libreswan (RHSA-2026:46986)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:46986 advisory. Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide...

SUSE CVE-2026-64522

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA mlx5exfrmaddstate handles acquire-flow temporary SAs by allocating software state and skipping hardware offload setup. That path jumps to the common success label...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

SUSE-SU-2026:22810-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-20585: iommu/amd: Use maximum Event log buffer size when SNP is enabled on Family 0x19 bsc1243603. - CVE-2026-31503: udp: Fix wildcard bind...

SUSE CVE-2026-63912

In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: restore combined single-frag length gate The ESP out-of-place fast path appends the trailer in espoutputhead before espoutputtail allocates the destination page frag. The head-side gate currently checks skb-datalen and...

SUSE-SU-2026:3130-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2023-20585: iommu/amd: Use maximum Event log buffer size when SNP is enabled on Family 0x19 bsc1243603. - CVE-2025-71302: drm/panthor: fix for dma-fence safe acce...

EUVD-2026-45684

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: reset runtime state when cloning SAs iptfsclonestate clones the IPTFS mode data with kmemdup. This copies runtime objects which must not be shared with the original SA, including the embedded skbuffhead, hrtimers,...

Linux Distros Unpatched Vulnerability : CVE-2026-63872

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - esp: fix page frag reference leak on skbtosgvec failure In espoutputtail, when esp-inplace is false, the old skb page frags are replaced with a new page from th...

Unbreakable Enterprise kernel security update

6.12.0-204.92.4.3 - xfrm: hold dev ref until after transportfinish NFHOOK Qi Tang Orabug: 39727259 CVE-2026-31663 - xfrm: hold device only for the asynchronous decryption Jianbo Liu Orabug: 39727259 - KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry Hyunwoo Kim...