Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the reuse of a freed resource after the release of the ro-uniq operation in rawrcv. This could le...

CVE-2026-31526

Summary: CVE-2026-31526 concerns the Linux kernel BPF verifier. A defect in exception exits for BPF subprograms allowed ORC unwinding to proceed without releasing user-held locks, risking resource leaks and instability. The root cause: process_bpf_exit_full() could set check_lock=false for except...

kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match()

A flaw was found in the Linux kernel’s SMC Shared Memory Communication module: in smcclcprfxmatch, the function is called from smclistenwork without proper RCU or RTNL protection. The code previously used skdstgetsk-dev, which can lead to a use-after-free UAF condition if the sk’s destination is...

PT-2026-34413

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the openvswitch component of the Linux kernel where a network device netdev may be released before the teardown process is fully completed. This occurs because the ovs...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013633)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013633 advisory. In the Linux kernel, the following vulnerability has been resolved: rcu: Fix thiscpuread lockdep warning in rcuforcequiescentstate Running rcutorture with non-zero...

Linux Distros Unpatched Vulnerability : CVE-2026-31526

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix exception exit lock checking for subprogs processbpfexitfull passes checklock = !curframe to checkresourceleak, which is false in cases when bpfthrow i...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-013403)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013403 advisory. In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp selectlocaladdress and selectsignaladdress both...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011286)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011286 advisory. In the Linux kernel, the following vulnerability has been resolved: rcu: Fix thiscpuread lockdep warning in rcuforcequiescentstate Running rcutorture with non-zero...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011400)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011400 advisory. In the Linux kernel, the following vulnerability has been resolved: rcu: Avoid stack overflow due to rcuirqenterchecktick being kprobe-ed Registering a kprobe on...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-006985)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006985 advisory. In the Linux kernel, the following vulnerability has been resolved: rcu: Avoid stack overflow due to rcuirqenterchecktick being kprobe-ed Registering a kprobe on...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-006965)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006965 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: sk =...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010824)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010824 advisory. In the Linux kernel, the following vulnerability has been resolved: rcu/rcuscale: Stop kfreescalethread threads after unloading rcuscale Running the 'kfreercutest'...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011237)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011237 advisory. In the Linux kernel, the following vulnerability has been resolved: rcu: Protect rcuprinttaskexpstall -exptasks access For kernels built with CONFIGPREEMPTRCU=y, the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007555)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007555 advisory. In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in toatmarpd. atmarpd is protected by RTNL since commit...

Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50184)

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50184 advisory. - ipv6: use RCU in ip6xmit Eric Dumazet Orabug: 39186444 CVE-2025-40135 - netfilter: nftables: fix use-after-free in nftablesaddchain Inseo An...

kernel: macvlan: fix possible UAF in macvlan_forward_source()

In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlanforwardsource Add RCU protection on struct macvlansourceentry-vlan. Whenever macvlanhashdelsource is called, we must clear entry-vlan pointer before RCU grace period starts. This allows...

kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match()

A flaw was found in the Linux kernel’s SMC Shared Memory Communication module: in smcclcprfxmatch, the function is called from smclistenwork without proper RCU or RTNL protection. The code previously used skdstgetsk-dev, which can lead to a use-after-free UAF condition if the sk’s destination is...

kernel: macvlan: fix possible UAF in macvlan_forward_source()

In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlanforwardsource Add RCU protection on struct macvlansourceentry-vlan. Whenever macvlanhashdelsource is called, we must clear entry-vlan pointer before RCU grace period starts. This allows...

ROS-20260408-73-0012

A vulnerability in the rcupreemptdeferredqshandler function of the kernel/rcu/treeplugin.h component of the Linux operating system kernel is related to simultaneous execution using a shared resource with incorrect synchronization. Exploitation of the vulnerability allows an attacker to cause a...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006686)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006686 advisory. In the Linux kernel, the following vulnerability has been resolved: dax: make sure inodes are flushed before destroy cache A bug can be triggered by following comman...