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CVE-2026-64244

Опубликовано: 24 июл. 2026
Источник: debian
EPSS Низкий

Описание

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.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
linuxfixed7.0.14-1package
linuxfixed6.12.95-1trixiepackage
linuxnot-affectedbookwormpackage
linuxnot-affectedbullseyepackage

Примечания

  • https://git.kernel.org/linus/a2b8d7827f48ee54a686cb80e4a1d0ff954ec42a (7.2-rc1)

EPSS

Процентиль: 6%
0.00161
Низкий

Связанные уязвимости

ubuntu
8 дней назад

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.

CVSS3: 5.5
redhat
9 дней назад

A flaw was found in the Linux kernel's memory management. This vulnerability occurs when a memory block fails to register, but its associated memory map is not properly cleared during device removal. This can lead to a system warning and potential instability or a kernel crash, allowing a local attacker to cause a Denial of Service (DoS).

nvd
8 дней назад

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.

msrc
7 дней назад

drivers/base/memory: set mem->altmap after successful device registration

github
8 дней назад

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.

EPSS

Процентиль: 6%
0.00161
Низкий