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CVE-2026-89495

Опубликовано: 14 сент. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 9.8

Описание

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlm_migrate_request_handler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in a DLM domain can corrupt or panic any other node with a malformed message. Three defects: - dlm_migrate_request_handler() passes migrate->namelen unchecked to dlm_init_mle(), which memcpy()s it into the 32-byte mname[] of an o2dlm_mle slab object: a heap out-of-bounds write of up to ~215 attacker-controlled bytes. - dlm_mig_lockres_handler() passes mres->lockname_len unchecked to dlm_init_lockres(), which memcpy()s it into the 32-byte o2dlm_lockname slab object: a heap out-of-bounds write of up to ~223 bytes. - the same handler trusts mres->num_locks without checking that the message is large enough to hold that many entries, so dlm_process_recovery_data() walks mres->ml[] past the kmall...

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jammy

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DNE

resolute

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DNE

jammy

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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superseded by linux-hwe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superseded by linux-hwe-5.4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

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DNE

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DNE

resolute

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esm-infra/bionic

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DNE

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DNE

resolute

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upstream

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DNE

jammy

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DNE

resolute

DNE

upstream

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DNE

esm-infra/focal

ignored

end of kernel support
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

end of life

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DNE

jammy

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DNE

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DNE

resolute

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DNE

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resolute

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DNE

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DNE

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DNE

resolute

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DNE

esm-infra-legacy/xenial

needs-triage

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jammy

needs-triage

noble

DNE

resolute

DNE

upstream

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DNE

jammy

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jammy

DNE

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DNE

resolute

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DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.2
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DNE

resolute

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superseded by linux-lowlatency-hwe-6.2

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replaced by linux-hwe-6.14
resolute

DNE

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DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.5
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DNE

resolute

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ignored

superseded by linux-lowlatency-hwe-6.5

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DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.8
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DNE

resolute

DNE

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superseded by linux-lowlatency-hwe-6.8

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DNE

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DNE

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end of kernel support
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end of kernel support

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resolute

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DNE

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esm-infra/bionic

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DNE

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jammy

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DNE

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DNE

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esm-infra/focal

ignored

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DNE

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jammy

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superseded by Ubuntu Pro ppa version
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replaced by linux-raspi
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superseded by Ubuntu Pro ppa version
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needs-triage

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Показывать по

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superseded by linux-riscv-5.8
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end of kernel support
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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: 48%
0.00626
Низкий

9.8 Critical

CVSS3

Связанные уязвимости

CVSS3: 6.4
redhat
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlm_migrate_request_handler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in a DLM domain can corrupt or panic any other node with a malformed message. Three defects: - dlm_migrate_request_handler() passes migrate->namelen unchecked to dlm_init_mle(), which memcpy()s it into the 32-byte mname[] of an o2dlm_mle slab object: a heap out-of-bounds write of up to ~215 attacker-controlled bytes. - dlm_mig_lockres_handler() passes mres->lockname_len unchecked to dlm_init_lockres(), which memcpy()s it into the 32-byte o2dlm_lockname slab object: a heap out-of-bounds write of up to ~223 bytes. - the same handler trusts mres->num_locks without checking that the message is large enough to hold that many entries, so dlm_process_recovery_data() walks mres->ml[] past the kmall...

CVSS3: 9.8
nvd
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlm_migrate_request_handler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in a DLM domain can corrupt or panic any other node with a malformed message. Three defects: - dlm_migrate_request_handler() passes migrate->namelen unchecked to dlm_init_mle(), which memcpy()s it into the 32-byte mname[] of an o2dlm_mle slab object: a heap out-of-bounds write of up to ~215 attacker-controlled bytes. - dlm_mig_lockres_handler() passes mres->lockname_len unchecked to dlm_init_lockres(), which memcpy()s it into the 32-byte o2dlm_lockname slab object: a heap out-of-bounds write of up to ~223 bytes. - the same handler trusts mres->num_locks without checking that the message is large enough to hold that many entries, so dlm_process_recovery_d

CVSS3: 9.8
debian
4 дня назад

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

CVSS3: 9.8
github
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlm_migrate_request_handler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in a DLM domain can corrupt or panic any other node with a malformed message. Three defects: - dlm_migrate_request_handler() passes migrate->namelen unchecked to dlm_init_mle(), which memcpy()s it into the 32-byte mname[] of an o2dlm_mle slab object: a heap out-of-bounds write of up to ~215 attacker-controlled bytes. - dlm_mig_lockres_handler() passes mres->lockname_len unchecked to dlm_init_lockres(), which memcpy()s it into the 32-byte o2dlm_lockname slab object: a heap out-of-bounds write of up to ~223 bytes. - the same handler trusts mres->num_locks without checking that the message is large enough to hold that many entries, so dlm_process_recover...

EPSS

Процентиль: 48%
0.00626
Низкий

9.8 Critical

CVSS3

Уязвимость CVE-2026-89495