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CVE-2026-89714

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

Описание

In the Linux kernel, the following vulnerability has been resolved: NFS: fix delegation_hash_table leak when nfs4_server_common_setup() fails nfs4_server_common_setup() allocates server->delegation_hash_table first, but server->destroy - the only path that frees the table via nfs4_destroy_server() - is not assigned until the very end of the function. If any intermediate step fails (the is_ds_only_client() check, nfs4_init_session(), nfs4_get_rootfh(), or nfs_probe_server()), the function returns with server->destroy still NULL, so the caller's nfs_free_server() skips the destroy callback and the hash table is leaked (4 KiB per attempt with the default delegation watermark). This is trivially reachable from userspace: every failed NFSv4 mount leaks one allocation. A client that persistently retries a mount that cannot succeed leaks kernel memory without bound. Observed in production where a Longhorn backup poller retried mount.nfs4 against an NFSv3-only server roughly 10 times per se...

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upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
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superseded by linux-hwe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superseded by linux-hwe-5.4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
devel

needs-triage

esm-infra/focal

needs-triage

jammy

needs-triage

noble

needs-triage

resolute

needs-triage

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/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superseded by Ubuntu Pro ppa version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

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

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/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

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

needs-triage

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

jammy

ignored

superseded by linux-lowlatency-hwe-6.2
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-lowlatency-hwe-6.2

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

replaced by linux-hwe-6.14
resolute

DNE

upstream

ignored

replaced by linux-hwe-6.14

Показывать по

РелизСтатусПримечание
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

РелизСтатусПримечание
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

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/trusty

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

needs-triage

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

end of kernel support
resolute

DNE

upstream

ignored

end of kernel support

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-nvidia-6.5
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-nvidia-6.5

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-nvidia-6.8
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-nvidia-6.8

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

DNE

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

needs-triage

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

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

ignored

replaced by linux-hwe-5.4
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-oem-5.13
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-5.13

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-oem-5.14
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-5.14

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

replaced by linux-hwe-5.15
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

replaced by linux-hwe-5.15

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-oem-6.1
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-6.1

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-oem-5.10
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-5.10

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-oem-6.1
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-6.1

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-oem-6.5
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-6.5

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

superseded by linux-oem-6.14
resolute

DNE

upstream

ignored

superseded by linux-oem-6.14

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-oem-6.8
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oem-6.8

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

superseded by linux-oem-6.14
resolute

DNE

upstream

ignored

superseded by linux-oem-6.14

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

DNE

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-infra-legacy/xenial

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

jammy

needs-triage

noble

needs-triage

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

ignored

superseded by linux-oracle-5.3
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.3

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.13
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.13

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.15
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.15

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/bionic

ignored

superseded by linux-oracle-5.4
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.4

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.11
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-5.11

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-oracle-6.8
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-oracle-6.8

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-infra/focal

needs-triage

jammy

needs-triage

noble

needs-triage

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

superseded by Ubuntu Pro ppa version
realtime/noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

replaced by linux-raspi
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

replaced by linux-raspi

Показывать по

РелизСтатусПримечание
devel

needs-triage

jammy

ignored

superseded by Ubuntu Pro ppa version
noble

ignored

superseded by Ubuntu Pro ppa version
realtime/jammy

needs-triage

realtime/noble

needs-triage

resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

DNE

realtime/noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

DNE

realtime/noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

DNE

realtime/jammy

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

needs-triage

esm-infra/focal

ignored

superseded by linux-riscv-5.8
jammy

ignored

end of kernel support
noble

ignored

replaced by linux-riscv-6.14
resolute

needs-triage

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-riscv-5.13
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-riscv-5.13

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

end of kernel support
noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

ignored

superseded by linux-riscv-5.11
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-riscv-5.11

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

ignored

superseded by linux-riscv-6.17
resolute

DNE

upstream

ignored

superseded by linux-riscv-6.17

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-riscv-6.8
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-riscv-6.8

Показывать по

РелизСтатусПримечание
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DNE

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

needs-triage

resolute

DNE

upstream

needs-triage

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

end of kernel support
noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

ignored

superseded by linux-starfive-6.5
noble

DNE

resolute

DNE

upstream

ignored

superseded by linux-starfive-6.5

Показывать по

РелизСтатусПримечание
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DNE

jammy

ignored

end of kernel support
noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

РелизСтатусПримечание
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DNE

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DNE

noble

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DNE

upstream

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Показывать по

РелизСтатусПримечание
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DNE

esm-infra/focal

needs-triage

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DNE

resolute

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upstream

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Показывать по

EPSS

Процентиль: 10%
0.00198
Низкий

Связанные уязвимости

CVSS3: 7.5
redhat
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: NFS: fix delegation_hash_table leak when nfs4_server_common_setup() fails nfs4_server_common_setup() allocates server->delegation_hash_table first, but server->destroy - the only path that frees the table via nfs4_destroy_server() - is not assigned until the very end of the function. If any intermediate step fails (the is_ds_only_client() check, nfs4_init_session(), nfs4_get_rootfh(), or nfs_probe_server()), the function returns with server->destroy still NULL, so the caller's nfs_free_server() skips the destroy callback and the hash table is leaked (4 KiB per attempt with the default delegation watermark). This is trivially reachable from userspace: every failed NFSv4 mount leaks one allocation. A client that persistently retries a mount that cannot succeed leaks kernel memory without bound. Observed in production where a Longhorn backup poller retried mount.nfs4 against an NFSv3-only server roughly 10 times per se...

nvd
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: NFS: fix delegation_hash_table leak when nfs4_server_common_setup() fails nfs4_server_common_setup() allocates server->delegation_hash_table first, but server->destroy - the only path that frees the table via nfs4_destroy_server() - is not assigned until the very end of the function. If any intermediate step fails (the is_ds_only_client() check, nfs4_init_session(), nfs4_get_rootfh(), or nfs_probe_server()), the function returns with server->destroy still NULL, so the caller's nfs_free_server() skips the destroy callback and the hash table is leaked (4 KiB per attempt with the default delegation watermark). This is trivially reachable from userspace: every failed NFSv4 mount leaks one allocation. A client that persistently retries a mount that cannot succeed leaks kernel memory without bound. Observed in production where a Longhorn backup poller retried mount.nfs4 against an NFSv3-only server roughly 10 times per se

debian
4 дня назад

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

github
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: NFS: fix delegation_hash_table leak when nfs4_server_common_setup() fails nfs4_server_common_setup() allocates server->delegation_hash_table first, but server->destroy - the only path that frees the table via nfs4_destroy_server() - is not assigned until the very end of the function. If any intermediate step fails (the is_ds_only_client() check, nfs4_init_session(), nfs4_get_rootfh(), or nfs_probe_server()), the function returns with server->destroy still NULL, so the caller's nfs_free_server() skips the destroy callback and the hash table is leaked (4 KiB per attempt with the default delegation watermark). This is trivially reachable from userspace: every failed NFSv4 mount leaks one allocation. A client that persistently retries a mount that cannot succeed leaks kernel memory without bound. Observed in production where a Longhorn backup poller retried mount.nfs4 against an NFSv3-only server roughly 10 times per...

EPSS

Процентиль: 10%
0.00198
Низкий
Уязвимость CVE-2026-89714