CVE-2026-64180
CVE CVE-2026-64180EUVD EUVD-2026-45865Published 2026-07-19T15:41:03.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: mm/memory_hotplug: fix memory block reference leak on remove Patch series "mm: Fix memory block leaks and locking", v2. This series fixes two memory block device reference leaks and one locking issue around the per-memory_block hwpoison counter. This patch (of 2): remove_memory_blocks_and_altmaps() looks up each memory block with find_memory_block(), which acquires a reference to the memory block device. That reference is never dropped on this path, resulting in a leaked device reference when removing memory blocks and their altmaps. Drop the reference after retrieving mem->altmap and clearing mem->altmap, before removing the memory block device.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.1; 6b8f0798b85aa529011570369db985a788f3003f <93866f55f7e292fe3d47d36c9efe5ee10213a06b; patch: 7.0.11; 6b8f0798b85aa529011570369db985a788f3003f <df64c0d21c3f85f844b2f656333e43d97e6ffa74; patch: 0; 6.8; patch: 6.12.92; 6b8f0798b85aa529011570369db985a788f3003f <09ce923071e7852ece60d7368e05249bf32c7967; patch: 6.18.34; 6b8f0798b85aa529011570369db985a788f3003f <b8ab30c79fc00147125b9c39f928561d9dd13d06
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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