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CVE-2026-89483

Опубликовано: 14 сент. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.5

Описание

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvme_setup_discard() always maps sizeof(struct nvme_dsm_range) * NVME_DSM_MAX_RANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of Ranges' field - the Fixes: commit records two that read past the declared ranges. A single-range discard fills only the first 16 bytes. Normally the buffer comes from kzalloc() and the other 4080 bytes are zero. When that allocation fails the code falls back to the per-controller ctrl->discard_page, which nvme_init_ctrl() obtains with alloc_page(GFP_KERNEL) and nothing ever zeroes, so those 4080 bytes are whatever the page last held and are handed to the controller. Reaching it requires the kzalloc(GFP_ATOMIC | __GFP_NOWARN) to fail, that is memory pressure; it is not remotely triggerable. Failing the allocation under KMSAN reproduces it, with the leaked tail full of vmemmap str...

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resolute

DNE

upstream

needs-triage

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DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

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devel

DNE

esm-infra-legacy/xenial

ignored

superseded by linux-hwe
esm-infra/bionic

ignored

superseded by linux-hwe-5.4
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

РелизСтатусПримечание
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needs-triage

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needs-triage

jammy

needs-triage

noble

needs-triage

resolute

needs-triage

upstream

needs-triage

Показывать по

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DNE

esm-infra/focal

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
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DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

end of kernel support
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by Ubuntu Pro ppa version
noble

DNE

realtime/jammy

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

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DNE

jammy

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noble

DNE

resolute

DNE

upstream

needs-triage

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РелизСтатусПримечание
devel

DNE

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needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/xenial

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

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DNE

jammy

needs-triage

noble

needs-triage

resolute

DNE

upstream

needs-triage

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РелизСтатусПримечание
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DNE

esm-infra/focal

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

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Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.2
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-lowlatency-hwe-6.2

Показывать по

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DNE

jammy

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ignored

replaced by linux-hwe-6.14
resolute

DNE

upstream

ignored

replaced by linux-hwe-6.14

Показывать по

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devel

DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.5
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-lowlatency-hwe-6.5

Показывать по

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devel

DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.8
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-lowlatency-hwe-6.8

Показывать по

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DNE

jammy

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noble

DNE

resolute

DNE

upstream

needs-triage

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DNE

esm-infra-legacy/trusty

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

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DNE

jammy

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noble

needs-triage

resolute

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upstream

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DNE

jammy

DNE

noble

ignored

end of kernel support
resolute

DNE

upstream

ignored

end of kernel support

Показывать по

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DNE

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DNE

noble

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DNE

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DNE

jammy

ignored

superseded by linux-nvidia-6.5
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DNE

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DNE

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superseded by linux-nvidia-6.5

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jammy

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superseded by linux-nvidia-6.8
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DNE

resolute

DNE

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superseded by linux-nvidia-6.8

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jammy

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DNE

resolute

DNE

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DNE

jammy

DNE

noble

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resolute

DNE

upstream

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devel

DNE

jammy

DNE

noble

DNE

resolute

needs-triage

upstream

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DNE

jammy

DNE

noble

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resolute

DNE

upstream

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devel

DNE

jammy

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needs-triage

resolute

DNE

upstream

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DNE

esm-infra/focal

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jammy

DNE

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DNE

resolute

DNE

upstream

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Показывать по

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DNE

jammy

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DNE

resolute

DNE

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DNE

esm-infra/bionic

ignored

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jammy

DNE

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DNE

resolute

DNE

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end of life

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DNE

esm-infra/focal

ignored

superseded by linux-oem-5.13
jammy

DNE

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DNE

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DNE

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superseded by linux-oem-5.13

Показывать по

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DNE

esm-infra/focal

ignored

superseded by linux-oem-5.14
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DNE

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DNE

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superseded by linux-oem-5.14

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DNE

esm-infra/focal

ignored

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jammy

DNE

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resolute

DNE

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replaced by linux-hwe-5.15

Показывать по

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DNE

jammy

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superseded by linux-oem-6.1
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DNE

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superseded by linux-oem-6.1

Показывать по

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DNE

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ignored

superseded by linux-oem-5.10
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DNE

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superseded by linux-oem-5.10

Показывать по

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DNE

jammy

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superseded by linux-oem-6.1
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DNE

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superseded by linux-oem-6.1

Показывать по

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DNE

jammy

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DNE

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DNE

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superseded by linux-oem-6.5

Показывать по

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DNE

jammy

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resolute

DNE

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Показывать по

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DNE

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DNE

jammy

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superseded by linux-oem-6.8
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DNE

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DNE

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Показывать по

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DNE

jammy

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resolute

DNE

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Показывать по

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DNE

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DNE

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DNE

resolute

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esm-infra-legacy/xenial

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needs-triage

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needs-triage

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needs-triage

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Показывать по

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DNE

esm-infra/bionic

ignored

superseded by linux-oracle-5.3
jammy

DNE

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DNE

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superseded by linux-oracle-5.3

Показывать по

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DNE

esm-infra/focal

ignored

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jammy

DNE

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DNE

resolute

DNE

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ignored

superseded by linux-oracle-5.13

Показывать по

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DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.15
jammy

DNE

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DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.15

Показывать по

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DNE

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needs-triage

jammy

DNE

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DNE

esm-infra/bionic

ignored

superseded by linux-oracle-5.4
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DNE

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DNE

resolute

DNE

upstream

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superseded by linux-oracle-5.4

Показывать по

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DNE

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jammy

DNE

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DNE

resolute

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РелизСтатусПримечание
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DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.11
jammy

DNE

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DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.11

Показывать по

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DNE

jammy

DNE

noble

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resolute

DNE

upstream

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Показывать по

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devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

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Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-oracle-6.8
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DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-6.8

Показывать по

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jammy

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DNE

resolute

DNE

upstream

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Показывать по

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DNE

jammy

DNE

noble

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DNE

upstream

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Показывать по

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needs-triage

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needs-triage

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needs-triage

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needs-triage

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Показывать по

РелизСтатусПримечание
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jammy

DNE

noble

DNE

resolute

DNE

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РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

superseded by Ubuntu Pro ppa version
realtime/noble

needs-triage

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DNE

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DNE

esm-infra/focal

ignored

replaced by linux-raspi
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DNE

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DNE

resolute

DNE

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replaced by linux-raspi

Показывать по

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ignored

superseded by Ubuntu Pro ppa version
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ignored

superseded by Ubuntu Pro ppa version
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needs-triage

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needs-triage

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
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DNE

jammy

DNE

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DNE

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DNE

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DNE

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DNE

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DNE

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Показывать по

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ignored

superseded by linux-riscv-5.8
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ignored

end of kernel support
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replaced by linux-riscv-6.14
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Показывать по

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ignored

superseded by linux-riscv-5.13
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superseded by linux-riscv-5.13

Показывать по

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Показывать по

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DNE

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end of kernel support
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end of life

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superseded by linux-riscv-5.11
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DNE

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superseded by linux-riscv-5.11

Показывать по

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Показывать по

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Показывать по

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end of kernel support
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Показывать по

EPSS

Процентиль: 40%
0.00487
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 4.7
redhat
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvme_setup_discard() always maps sizeof(struct nvme_dsm_range) * NVME_DSM_MAX_RANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of Ranges' field - the Fixes: commit records two that read past the declared ranges. A single-range discard fills only the first 16 bytes. Normally the buffer comes from kzalloc() and the other 4080 bytes are zero. When that allocation fails the code falls back to the per-controller ctrl->discard_page, which nvme_init_ctrl() obtains with alloc_page(GFP_KERNEL) and nothing ever zeroes, so those 4080 bytes are whatever the page last held and are handed to the controller. Reaching it requires the kzalloc(GFP_ATOMIC | __GFP_NOWARN) to fail, that is memory pressure; it is not remotely triggerable. Failing the allocation under KMSAN reproduces it, with the leaked tail full of vmemmap str...

CVSS3: 7.5
nvd
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvme_setup_discard() always maps sizeof(struct nvme_dsm_range) * NVME_DSM_MAX_RANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of Ranges' field - the Fixes: commit records two that read past the declared ranges. A single-range discard fills only the first 16 bytes. Normally the buffer comes from kzalloc() and the other 4080 bytes are zero. When that allocation fails the code falls back to the per-controller ctrl->discard_page, which nvme_init_ctrl() obtains with alloc_page(GFP_KERNEL) and nothing ever zeroes, so those 4080 bytes are whatever the page last held and are handed to the controller. Reaching it requires the kzalloc(GFP_ATOMIC | __GFP_NOWARN) to fail, that is memory pressure; it is not remotely triggerable. Failing the allocation under KMSAN reproduces it, with the leaked tail full of vmemmap str

CVSS3: 7.5
debian
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: n ...

CVSS3: 7.5
github
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvme_setup_discard() always maps sizeof(struct nvme_dsm_range) * NVME_DSM_MAX_RANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of Ranges' field - the Fixes: commit records two that read past the declared ranges. A single-range discard fills only the first 16 bytes. Normally the buffer comes from kzalloc() and the other 4080 bytes are zero. When that allocation fails the code falls back to the per-controller ctrl->discard_page, which nvme_init_ctrl() obtains with alloc_page(GFP_KERNEL) and nothing ever zeroes, so those 4080 bytes are whatever the page last held and are handed to the controller. Reaching it requires the kzalloc(GFP_ATOMIC | __GFP_NOWARN) to fail, that is memory pressure; it is not remotely triggerable. Failing the allocation under KMSAN reproduces it, with the leaked tail full of vmemmap ...

EPSS

Процентиль: 40%
0.00487
Низкий

7.5 High

CVSS3

Уязвимость CVE-2026-89483