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CVE-2026-89529

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

Описание

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject oversized Read segments at decode time The RPC/RDMA Read list decoder stores wire-supplied segment lengths without validation. xdr_count_read_segments() checks 4-byte alignment for non-zero position values but does not cap the segment length. An oversized rs_length reaches svc_rdma_build_read_segment(), which derives nr_bvec from it and can drive a large dynamic bvec allocation before verifying that enough rq_pages remain. If the post-allocation page-overrun guard fires, the freshly acquired rw context is not returned, leaking the resource. Reject any segment whose length exceeds the receive context's page budget during Read list decoding, consistent with how xdr_check_write_chunk() bounds Write segment counts against rc_maxpages. Also return the rw context on the existing post-allocation overrun path in svc_rdma_build_read_segment(), keeping that defensive guard balanced.

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superseded by linux-hwe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superseded by linux-hwe-5.4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

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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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needs-triage

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DNE

esm-infra/focal

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

Показывать по

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DNE

esm-infra/bionic

needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

needs-triage

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DNE

jammy

needs-triage

noble

DNE

resolute

DNE

upstream

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devel

DNE

esm-infra/focal

ignored

end of kernel support
jammy

DNE

noble

DNE

resolute

DNE

upstream

ignored

end of life

Показывать по

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DNE

jammy

ignored

superseded by Ubuntu Pro ppa version
noble

DNE

realtime/jammy

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resolute

DNE

upstream

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DNE

jammy

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noble

DNE

resolute

DNE

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

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needs-triage

jammy

DNE

noble

DNE

resolute

DNE

upstream

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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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resolute

DNE

upstream

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DNE

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needs-triage

jammy

DNE

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DNE

resolute

DNE

upstream

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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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ignored

replaced by linux-hwe-6.14

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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

ignored

superseded by linux-lowlatency-hwe-6.8

Показывать по

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jammy

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DNE

resolute

DNE

upstream

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DNE

esm-infra-legacy/trusty

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jammy

DNE

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DNE

resolute

DNE

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jammy

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ignored

end of kernel support
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DNE

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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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superseded by linux-nvidia-6.5

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DNE

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DNE

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DNE

jammy

DNE

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DNE

resolute

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DNE

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DNE

jammy

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DNE

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DNE

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jammy

DNE

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Показывать по

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DNE

esm-infra/bionic

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DNE

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end of life

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DNE

esm-infra/focal

ignored

superseded by linux-oem-5.13
jammy

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DNE

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superseded by linux-oem-5.13

Показывать по

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DNE

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superseded by linux-oem-5.14

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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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ignored

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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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Показывать по

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jammy

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resolute

DNE

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Показывать по

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DNE

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devel

DNE

jammy

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superseded by linux-oem-6.8
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Показывать по

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superseded by linux-oem-6.14
resolute

DNE

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Показывать по

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DNE

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noble

DNE

resolute

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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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superseded by linux-oracle-5.3

Показывать по

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ignored

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DNE

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superseded by linux-oracle-5.13

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DNE

esm-infra/focal

ignored

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DNE

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superseded by linux-oracle-5.15

Показывать по

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DNE

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DNE

esm-infra/bionic

ignored

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DNE

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Показывать по

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DNE

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DNE

esm-infra/focal

ignored

superseded by linux-oracle-5.11
jammy

DNE

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DNE

resolute

DNE

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ignored

superseded by linux-oracle-5.11

Показывать по

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jammy

DNE

noble

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DNE

upstream

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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

ignored

superseded by linux-oracle-6.8
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DNE

resolute

DNE

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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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jammy

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needs-triage

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needs-triage

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Показывать по

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DNE

noble

DNE

resolute

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DNE

jammy

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ignored

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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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

Показывать по

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ignored

superseded by linux-riscv-5.8
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end of kernel support
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replaced by linux-riscv-6.14
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ignored

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end of kernel support
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superseded by linux-riscv-5.11
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superseded by linux-riscv-5.11

Показывать по

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superseded by linux-riscv-6.17
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superseded by linux-riscv-6.8

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

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end of kernel support
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Показывать по

EPSS

Процентиль: 9%
0.00189
Низкий

Связанные уязвимости

CVSS3: 5.9
redhat
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject oversized Read segments at decode time The RPC/RDMA Read list decoder stores wire-supplied segment lengths without validation. xdr_count_read_segments() checks 4-byte alignment for non-zero position values but does not cap the segment length. An oversized rs_length reaches svc_rdma_build_read_segment(), which derives nr_bvec from it and can drive a large dynamic bvec allocation before verifying that enough rq_pages remain. If the post-allocation page-overrun guard fires, the freshly acquired rw context is not returned, leaking the resource. Reject any segment whose length exceeds the receive context's page budget during Read list decoding, consistent with how xdr_check_write_chunk() bounds Write segment counts against rc_maxpages. Also return the rw context on the existing post-allocation overrun path in svc_rdma_build_read_segment(), keeping that defensive guard balanced.

nvd
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject oversized Read segments at decode time The RPC/RDMA Read list decoder stores wire-supplied segment lengths without validation. xdr_count_read_segments() checks 4-byte alignment for non-zero position values but does not cap the segment length. An oversized rs_length reaches svc_rdma_build_read_segment(), which derives nr_bvec from it and can drive a large dynamic bvec allocation before verifying that enough rq_pages remain. If the post-allocation page-overrun guard fires, the freshly acquired rw context is not returned, leaking the resource. Reject any segment whose length exceeds the receive context's page budget during Read list decoding, consistent with how xdr_check_write_chunk() bounds Write segment counts against rc_maxpages. Also return the rw context on the existing post-allocation overrun path in svc_rdma_build_read_segment(), keeping that defensive guard balanced.

debian
4 дня назад

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

github
4 дня назад

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject oversized Read segments at decode time The RPC/RDMA Read list decoder stores wire-supplied segment lengths without validation. xdr_count_read_segments() checks 4-byte alignment for non-zero position values but does not cap the segment length. An oversized rs_length reaches svc_rdma_build_read_segment(), which derives nr_bvec from it and can drive a large dynamic bvec allocation before verifying that enough rq_pages remain. If the post-allocation page-overrun guard fires, the freshly acquired rw context is not returned, leaking the resource. Reject any segment whose length exceeds the receive context's page budget during Read list decoding, consistent with how xdr_check_write_chunk() bounds Write segment counts against rc_maxpages. Also return the rw context on the existing post-allocation overrun path in svc_rdma_build_read_segment(), keeping that defensive guard balanced.

EPSS

Процентиль: 9%
0.00189
Низкий
Уязвимость CVE-2026-89529