A flaw was found in the Linux kernel's XFRM ESP-in-TCP subsystem

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skbtrycoalesce can attach paged frags from @from to @to. If @from has SKBFLSHAREDFRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backe...

kernel security update

An update is available for kernel. This update affects Rocky Linux SIG Cloud 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux...

kernel-rt security update

An update is available for kernel-rt. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel-rt packages provide the Real Time Linux Kernel, which enables...

Linux Distros Unpatched Vulnerability : CVE-2026-64525

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against...

RockyLinux 8 : kernel-rt (RLSA-2026:45116)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:45116 advisory. kernel: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O CVE-2025-40026 kernel: xfrm single-frag length not properly limited kernel: ...

CVE-2026-64525

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

SUSE CVE-2026-64525

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

AZL-93803 CVE-2026-64525 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

CVE-2026-64525

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

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...

CVE-2026-64436

In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp SADBXSATYPEIPCOMP case by allocating x-calg and copying only the algorithm name: x-calg = kmallocobjx-calg; if !x-calg err = -ENOMEM; goto...

CVE-2026-64436

In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp SADBXSATYPEIPCOMP case by allocating x-calg and copying only the algorithm name: x-calg = kmallocobjx-calg; if !x-calg err = -ENOMEM; goto...

EUVD-2026-49037

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

CVE-2026-64525

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

CVE-2026-64525

In the Linux kernel, the following vulnerability has been resolved: xfrm: move policybydst RCU sync from per-netns .exit to .preexit The struct pernetoperations docstring in include/net/netnamespace.h explicitly warns against blocking RCU primitives in .exit handlers: Exit methods using blocking...

CVE-2026-64436 net: af_key: initialize alg_key_len for IPComp states

In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp SADBXSATYPEIPCOMP case by allocating x-calg and copying only the algorithm name: x-calg = kmallocobjx-calg; if !x-calg err = -ENOMEM; goto...

EUVD-2026-48780

In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp SADBXSATYPEIPCOMP case by allocating x-calg and copying only the algorithm name: x-calg = kmallocobjx-calg; if !x-calg err = -ENOMEM; goto...

CVE-2026-64436

The CVE-2026-64436 issue in the Linux kernel affects IPComp state handling in PF_KEY paths. In pfkey_msg2xfrm_state, x->calg is allocated and the algorithm name is copied, but calg->alg_key_len is never initialized, even though calg is 68 bytes and alg_key_len is used later during xfrm_algo...

CVE-2026-64436 net: af_key: initialize alg_key_len for IPComp states

In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp SADBXSATYPEIPCOMP case by allocating x-calg and copying only the algorithm name: x-calg = kmallocobjx-calg; if !x-calg err = -ENOMEM; goto...

PT-2026-64756

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.18 Description An issue exists in the xfrm module where the xfrm policy fini function incorrectly calls synchronize rcu within the .exit handler of xfrm net ops. This violates the guidelines in include/net/net namespace....