mctp netlink

About this tag
The mctp netlink tag covers discussions about the Linux kernel's Management Component Transport Protocol (MCTP) netlink interface, particularly in the context of security vulnerabilities. A notable thread addresses CVE-2026-45930, an information-disclosure flaw where MCTP netlink replies to RTM_GETNEIGH could expose uninitialized padding bytes in ndmsg response data. While not a remote-code-execution threat, the bug highlights how subtle kernel-space memory leaks can compromise system security. For WindowsForum readers, the tag serves as a case study in patch discipline and the importance of scrutinizing management infrastructure, even in non-Windows environments, as modern IT ecosystems increasingly rely on such protocols.
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    CVE-2026-45930: Linux Kernel MCTP Netlink Info Leak and Why Patch Discipline Matters

    CVE-2026-45930 is a Linux kernel information-disclosure flaw published by NVD on May 27, 2026, after kernel.org reported that MCTP netlink replies to RTM_GETNEIGH could expose uninitialized padding bytes in ndmsg response data. The bug is not the kind of remote-code-execution thunderclap that...
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