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CVE-2026-89715

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

Описание

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: fix ref leak on nfs_uuid_add_file failure When nfs_uuid_add_file() races with nfs_uuid_put() tearing down uuid->net, it returns -ENXIO without publishing nfl->nfs_uuid via rcu_assign_pointer(). nfs_open_local_fh() then enters its error branch and only releases the slot's file ref and its paired net ref plus its own entry-time net ref, while the close path is a no-op: nfs_close_local_fh() nfs_uuid = rcu_dereference(nfl->nfs_uuid); if (!nfs_uuid) { rcu_read_unlock(); return; } /* always */ nfsd_open_local_fh() returns localio holding a caller-owned +1 nfsd_file reference (from nfsd_file_get() after nfsd_file_acquire_local()) and an entry-time nfsd_net reference (from its first nfsd_net_try_get()) embedded as nf->nf_net. Both are leaked on the failure path, pinning one nfsd_file (and the underlying struct file, dentry, inode) and one nfsd_net_ref per occurrence, which blocks nfsd_net and netns teardown....

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superseded by linux-hwe-6.8

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DNE

jammy

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noble

DNE

resolute

DNE

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DNE

jammy

DNE

noble

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resolute

DNE

upstream

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superseded by linux-hwe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superseded by linux-hwe-5.4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

Показывать по

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needs-triage

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needs-triage

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needs-triage

resolute

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upstream

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DNE

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needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

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Показывать по

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DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

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Показывать по

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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

upstream

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DNE

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DNE

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resolute

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DNE

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jammy

DNE

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DNE

resolute

DNE

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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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jammy

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DNE

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jammy

DNE

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resolute

DNE

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DNE

jammy

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superseded by linux-lowlatency-hwe-6.2
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upstream

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replaced by linux-hwe-6.14
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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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upstream

ignored

superseded by linux-lowlatency-hwe-6.5

Показывать по

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DNE

jammy

ignored

superseded by linux-lowlatency-hwe-6.8
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DNE

resolute

DNE

upstream

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superseded by linux-lowlatency-hwe-6.8

Показывать по

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DNE

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DNE

upstream

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DNE

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jammy

DNE

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DNE

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DNE

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jammy

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end of kernel support
resolute

DNE

upstream

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end of kernel support

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DNE

jammy

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superseded by linux-nvidia-6.5
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DNE

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resolute

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DNE

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DNE

esm-infra/bionic

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DNE

jammy

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DNE

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ignored

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DNE

jammy

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superseded by linux-oracle-6.8
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Показывать по

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Показывать по

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DNE

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superseded by Ubuntu Pro ppa version
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ignored

replaced by linux-raspi
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replaced by linux-raspi

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superseded by Ubuntu Pro ppa version
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Показывать по

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ignored

superseded by linux-riscv-5.8
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ignored

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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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superseded by linux-starfive-6.5
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superseded by linux-starfive-6.5

Показывать по

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end of kernel support
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Показывать по

EPSS

Процентиль: 10%
0.00198
Низкий

Связанные уязвимости

CVSS3: 5.3
redhat
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: fix ref leak on nfs_uuid_add_file failure When nfs_uuid_add_file() races with nfs_uuid_put() tearing down uuid->net, it returns -ENXIO without publishing nfl->nfs_uuid via rcu_assign_pointer(). nfs_open_local_fh() then enters its error branch and only releases the slot's file ref and its paired net ref plus its own entry-time net ref, while the close path is a no-op: nfs_close_local_fh() nfs_uuid = rcu_dereference(nfl->nfs_uuid); if (!nfs_uuid) { rcu_read_unlock(); return; } /* always */ nfsd_open_local_fh() returns localio holding a caller-owned +1 nfsd_file reference (from nfsd_file_get() after nfsd_file_acquire_local()) and an entry-time nfsd_net reference (from its first nfsd_net_try_get()) embedded as nf->nf_net. Both are leaked on the failure path, pinning one nfsd_file (and the underlying struct file, dentry, inode) and one nfsd_net_ref per occurrence, which blocks nfsd_net and netns teardown....

nvd
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: fix ref leak on nfs_uuid_add_file failure When nfs_uuid_add_file() races with nfs_uuid_put() tearing down uuid->net, it returns -ENXIO without publishing nfl->nfs_uuid via rcu_assign_pointer(). nfs_open_local_fh() then enters its error branch and only releases the slot's file ref and its paired net ref plus its own entry-time net ref, while the close path is a no-op: nfs_close_local_fh() nfs_uuid = rcu_dereference(nfl->nfs_uuid); if (!nfs_uuid) { rcu_read_unlock(); return; } /* always */ nfsd_open_local_fh() returns localio holding a caller-owned +1 nfsd_file reference (from nfsd_file_get() after nfsd_file_acquire_local()) and an entry-time nfsd_net reference (from its first nfsd_net_try_get()) embedded as nf->nf_net. Both are leaked on the failure path, pinning one nfsd_file (and the underlying struct file, dentry, inode) and one nfsd_net_ref per occurrence, which blocks nfsd_net an

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/localio: fix ref leak on nfs_uuid_add_file failure When nfs_uuid_add_file() races with nfs_uuid_put() tearing down uuid->net, it returns -ENXIO without publishing nfl->nfs_uuid via rcu_assign_pointer(). nfs_open_local_fh() then enters its error branch and only releases the slot's file ref and its paired net ref plus its own entry-time net ref, while the close path is a no-op: nfs_close_local_fh() nfs_uuid = rcu_dereference(nfl->nfs_uuid); if (!nfs_uuid) { rcu_read_unlock(); return; } /* always */ nfsd_open_local_fh() returns localio holding a caller-owned +1 nfsd_file reference (from nfsd_file_get() after nfsd_file_acquire_local()) and an entry-time nfsd_net reference (from its first nfsd_net_try_get()) embedded as nf->nf_net. Both are leaked on the failure path, pinning one nfsd_file (and the underlying struct file, dentry, inode) and one nfsd_net_ref per occurrence, which blocks nfsd_net...

EPSS

Процентиль: 10%
0.00198
Низкий
Уязвимость CVE-2026-89715