CVE-2026-64180Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 3 mentions in latest observed window

Immediate actions

Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.5/ 10 priority

Sources & remediation

Patch / fix

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

linux_kernel

Threat summary

Patch or workaround signal is available
3 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 2 signals
Technical details provided in 2 signals
Disclosure: 1 classified signal
3 total mentions across 1 day

Affected systems

Vendors

linux

Products

linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 1d

Signal classification2 categories

Patch

266.7%

Disclosure

133.3%

Referenced assets3 URLs

By indicator

Full discourse3 posts

Infoflowcloud@infoflowcloud92d
Patch
🚨*CVE* CVE-2026-64180 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 … https://www.cve.org/CVERecord?id=CVE-2026-64180 ----- Traducción: CVE-2026-64180 En … http://infoflow.cloud`
Post summary
The post announces that CVE-2026-64180 has been fixed in the Linux kernel, providing a link to the patch series, but it contains no PoC, exploit, or evidence of active exploitation.
0000010
92 followersView on X
CVE@CVEnew92d
Patch
CVE-2026-64180 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 … https://www.cve.org/CVERecord?id=CVE-2026-64180
Post summary
CVE-2026-64180 has been fixed in the Linux kernel with a patch series named "mm: Fix memory block…", and no exploitation details or PoC are mentioned in the text.
00000616
57.8K followersView on X
MalwareObserver@MalwareObserver92d
Disclosure
🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-64180](https://git.kernel.org/stable/c/09ce923071e7852ece60d7368e05249bf32c7967) In the... https://git.kernel.org/stable/c/09ce923071e7852ece60d7368e05249bf32c7967 #Vulnerability #CVE #ZeroDay
Post summary
The message announces CVE-2026-64180 with a link to the kernel commit, providing no further exploitation, patch, or technical details.
0000045
12 followersView on X

CPE platform detail5 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

5 of 5 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	linux	linux_kernel	-	-	-
OS	linux	linux_kernel	7.1	-	-
OS	linux	linux_kernel	7.1	-	-
OS	linux	linux_kernel	7.1	-	-
OS	linux	linux_kernel	7.1	-	-

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