USN-8548-2: Linux kernel vulnerabilities

It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-43503 Several security issues...

USN-8530-2: Linux kernel (HWE) vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8530-2 linux-aws-hwe vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21555-1 advisory. The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2026-23259:...

SUSE-SU-2026:3602-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2026-46056: Bluetooth: hcievent: fix potential UAF in SSP passkey handlers bsc1267435. - CVE-2026-46193: xfrm: ah: account for ESN high bits in async callbacks...

OPENSUSE-SU-2026:21555-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2026-23259: iouring/rw: free potentially allocated iovec on cache put failure bsc1259866. - CVE-2026-31443: dmaengine: idxd: Fix crash when the event log is disabled...

Linux Distros Unpatched Vulnerability : CVE-2026-68420

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: reject optional IPTFS templates in outbound policies syzbot reported a stack-out-of-bounds read in xfrmstatefind which flows from xfrmtmplresolveone. Comm...

Linux Distros Unpatched Vulnerability : CVE-2026-68415

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: clear mode callbacks after failed mode setup xfrmstategctask can run long after a failed IPTFS state setup. In the reproduced case, xfrminitstate cached...

SUSE-SU-2026:23068-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2026-23259: iouring/rw: free potentially allocated iovec on cache put failure bsc1259866. - CVE-2026-31443: dmaengine: idxd: Fix crash when the event log is disabled...

CVE-2026-68415

A flaw was found in the Linux kernel's xfrm IPSec framework component. A vulnerability exists where the xfrmstategctask can attempt to dereference stale callback data after a failed Internet Protocol Traffic Flow Security IPTFS state setup and subsequent module unload. This can lead to a kernel...

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...

CVE-2026-68426

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability arises when asynchronous cryptographic operations incorrectly handle network packet segments, leaving a pointer to memory that has already been released. An attacker could potentially exploit this use-after-free condition t...

DEBIAN-CVE-2026-68420

In the Linux kernel, the following vulnerability has been resolved: xfrm: reject optional IPTFS templates in outbound policies syzbot reported a stack-out-of-bounds read in xfrmstatefind which flows from xfrmtmplresolveone. Commit 3d776e31c841 "xfrm: Reject optional tunnel/BEET mode templates in...

DEBIAN-CVE-2026-68415

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear mode callbacks after failed mode setup xfrmstategctask can run long after a failed IPTFS state setup. In the reproduced case, xfrminitstate cached x-modecbs, IPTFS setup returned -ENOMEM before publishing modedata, an...

CVE-2026-68415

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear mode callbacks after failed mode setup xfrmstategctask can run long after a failed IPTFS state setup. In the reproduced case, xfrminitstate cached x-modecbs, IPTFS setup returned -ENOMEM before publishing modedata, an...

CVE-2026-68426

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 =...

UBUNTU-CVE-2026-68420

In the Linux kernel, the following vulnerability has been resolved: xfrm: reject optional IPTFS templates in outbound policies syzbot reported a stack-out-of-bounds read in xfrmstatefind which flows from xfrmtmplresolveone. Commit 3d776e31c841 "xfrm: Reject optional tunnel/BEET mode templates in...

UBUNTU-CVE-2026-68415

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear mode callbacks after failed mode setup xfrmstategctask can run long after a failed IPTFS state setup. In the reproduced case, xfrminitstate cached x-modecbs, IPTFS setup returned -ENOMEM before publishing modedata, an...

UBUNTU-CVE-2026-68426

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 =...

CVE-2026-68426 xfrm: fix stale skb->prev after async crypto steals a GSO segment

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 =...