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CVE-2026-64244

5.5 Moyenne

Publiée le 24/07/2026 à 18:16 · Modifiée le 17/08/2026 à 21:25 · Analysée par le NVD · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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.

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Scores CVSS

VersionScoreSourceVecteur
3.1 5.5 Moyenne nvd@nist.gov (NVD) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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