Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovsctexit Since kfreercu, which is called during the hlistforeachentryrcu traversal of ovsctlimitexit, is not part of the RCU read critical section, it is possible that the RCU grace period...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fixed a possible memory leak in ovsmetercmdset. oldmeter needs to be freed after it is detached, regardless of whether the new meter is successfully attached...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: openvswitch: Use RCU protection in ovsvportcmdfillinfo. ovsvportcmdfillinfo can be called without RTNL or RCU. Use RCU protection and devnetrcu to avoid potential UAF Use-After-Free errors...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: OpenVSwitch: fixed the issue where locking occurred when trying to unregister a netdev with a carrier. The commit in the “fixes” tag attempted to fix this issue through the following sequence of calls: dooutput → ovsvportsend →...

Astra Linux – Vulnerability in OpenVSwitch

A flaw was discovered in OpenVSwitch OVS. When processing an IP packet with protocol 0, OVS will install a datapath flow without modifying the IP header. This issue results in the installation of a datapath flow that matches all IP protocols with “nwproto” set to wildcard, but with an incorrect...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: openvswitch: Fixed a memory leak that occurred during failed datapath creation. ovsdpcmdnew - ovsdpchange - ovsdpsetupcallportids allocates an array using kmalloc. If newvport fails during ovsdpcmdnew, dp-upcallportids must be...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fixed a flow memory leak in ovsflowcmdnew Syzkaller reported a memory leak in ovsflowcmdnew, as the memory allocated for the flow command does not get freed when an allocation fails. BUG: Memory leak Unreference...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: inet: inetdefrag: prevent sk release while still in use The functions iplocalout and others can pass skb-sk as a function argument. If the skb is a fragment and reassembly occurs before such a function call returns, the sk must n...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

An integer coercion error was detected in the openvswitch kernel module. When there are a sufficient number of actions, while copying and reserving memory for a new action of a new flow, the reservesfasize function does not return -EMSGSIZE as expected. This could potentially lead to an...

Linux Kernel OpenvSwitch Race Condition Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of dpmeter...

CVE-2026-89487

A flaw was found in openvswitch in the Linux kernel. This vulnerability occurs when the queueuserspacepacket function incorrectly modifies a shared network packet buffer by stripping a critical flag. This action can lead to an unprivileged page-cache write, allowing a local attacker to modify dat...

Linux Distros Unpatched Vulnerability : CVE-2026-89488

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT...

Linux Distros Unpatched Vulnerability : CVE-2026-89487

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message users...

AZL-100568 CVE-2026-89487 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

AZL-100205 CVE-2026-89488 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT limit pointer was neither removed from readers nor protected by a gra...

CVE-2026-89488

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT limit pointer was neither removed from readers nor protected by a gra...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

AZL-100814 CVE-2026-80994 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix flow mask use-after-free on flow deletion The commit in the Fixes tag below made so flow-mask free is scheduled via RCU right after it is removed from the flow table. The pointer stays in the flow structure...

CVE-2026-89488

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT limit pointer was neither removed from readers nor protected by a gra...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...