CVE-2026-64244Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 2 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: drivers/base/memory: set mem->altmap after successful device registration If __add_memory_block() fails at xa_store() (under memory pressure for example), device_unregister() is called, which eventually triggers memory_block_release() with mem->altmap still set, causing a WARN_ON(mem->altmap). This was triggered by modifying virtio-mem driver. Fix this by delaying the assignment of mem->altmap until after __add_memory_block() has succeeded.

0.5/ 10 priority

Sources & remediation

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
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
linux_kernel

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-24: 2Patch / Workaround · 2026-07-24: 2Technical Details · 2026-07-24: 207-24
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-64244 In the Linux kernel, the following vulnerability has been resolved: drivers/base/memory: set mem->altmap after successful device registration If __add_memory_block(… https://www.cve.org/CVERecord?id=CVE-2026-64244 ----- Traducción: CVE-2026-64244 En … http://infoflow.cloud`

    Post summary

    The post announces that CVE‑2026‑64244 has been fixed in the Linux kernel’s memory driver, referencing the patch location.

    0000032
    94 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-64244 In the Linux kernel, the following vulnerability has been resolved: drivers/base/memory: set mem->altmap after successful device registration If __add_memory_block(… https://www.cve.org/CVERecord?id=CVE-2026-64244

    Post summary

    This post announces that CVE-2026-64244 has been fixed in the Linux kernel, indicating a patch is available, with no evidence of exploitation or PoC.

    000001.2K
    57.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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