CVE-2026-45930

CVE-2026-45930 is a Linux kernel netlink issue in net: mctp where RTM_GETNEIGH could return uninitialised data in ndmsg pad bytes. The root cause is not fully detailed here beyond the description, but connected OSV entries indicate patches to fix nlmsg initialisation in link/addr/neigh responses....

CVE-2026-45930 net: mctp: ensure our nlmsg responses are initialised

In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar @farazsth98 from Zellic, and Pumpkin @u1f383 from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTMGETNEIGH will return...

CVE-2026-45930

In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar @farazsth98 from Zellic, and Pumpkin @u1f383 from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTMGETNEIGH will return...

CVE-2026-45840

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

CVE-2026-45845

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix NULL pointer dereference in class dump When a TAPRIO child qdisc is deleted via RTMDELQDISC, tapriograft is called with new == NULL and stores NULL into q-qdiscscl - 1. Subsequent RTMGETTCLASS dump operatio...

AZL-88709 CVE-2026-45840 affecting package kernel for versions less than 6.6.141.1-1

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

UBUNTU-CVE-2026-45840

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

CVE-2026-45840

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

EUVD-2026-32166

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

CVE-2026-45840 openvswitch: cap upcall PID array size and pre-size vport replies

In the Linux kernel, the following vulnerability has been resolved: openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... but serialize the full upcall PID array via ovsvportgetupcallportids...

CVE-2026-45840

CVE-2026-45840 : The vulnerability in the Linux kernel openvswitch path allows a CAP_NET_ADMIN user to overflow the vport netlink reply buffer by providing a large upcall PID array, triggering a -EMSGSIZE and a kernel BUG. The root cause is ovs_vport_set_upcall_portids() accepting any non-zero mu...

Linux Distros Unpatched Vulnerability : CVE-2026-45930

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar @farazsth98 from Zellic, and Pumpkin @u1f383 from DEVCORE Research Team working with Tren...

PT-2026-43797

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the MCTP Management Component Transport Protocol implementation where RTM GETNEIGH requests return uninitialized data within the padding bytes of the ndmsg data. This...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel. This vulnerability stems from the vport netlink reply helper function, which allocates skb packets of a fixed size but h...

CVE-2026-45930: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar @farazsth98 from Zellic, and Pumpkin @u1f383 from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTMGETNEIGH will return...

Linux Distros Unpatched Vulnerability : CVE-2026-45840

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - openvswitch: cap upcall PID array size and pre-size vport replies The vport netlink reply helpers allocate a fixed-size skb with nlmsgnewNLMSGDEFAULTSIZE, ... b...

PT-2026-61315

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ethtool module where the ethnl ops complete function is not called when validate fails, despite ethnl ops begin having already been executed. This occurs during...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: cpsw: Executing the ndosetrxmode callback within a work queue Commit 1767bb2d47b7 “ipv6: mcast: Do not hold RTNL for IPV6ADDMEMBERSHIP and MCASTJOINGROUP” removed the RTNL lock for these operations. However, this change...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Binder: Fixed a UAF Use-After-Free issue in bindersnetlinkreport. Transactions sent to frozen targets via bindersproctransaction return an BRTRANSACTIONPENDINGFROZEN error, but they are still treated as successful. This is becaus...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: afpacket: moved the call to packetdevmc out of the RCU critical section. Syzkaller reports the following issues: BUG: A sleeping function is called from an invalid context at kernel/locking/mutex.c:578 mutexlock+0x106/0xe80...