CVE-2025-21927

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

nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()

nvme_tcp_recv_pdu() doesn't check the validity of the header length.
When header digests are enabled, a target might send a packet with an
invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst()
to access memory outside the allocated area and cause memory corruptions
by overwriting it with the calculated digest.

Fix this by rejecting packets with an unexpected header length.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
LinuxCNA
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
VendorProductVersion
linuxlinux_kernel
5.0 ≤
𝑥
< 6.12.19
linuxlinux_kernel
6.13 ≤
𝑥
< 6.13.7
linuxlinux_kernel
6.14:rc1
linuxlinux_kernel
6.14:rc2
linuxlinux_kernel
6.14:rc3
linuxlinux_kernel
6.14:rc4
linuxlinux_kernel
6.14:rc5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
vulnerable
bullseye (security)
vulnerable
bookworm
vulnerable
bookworm (security)
vulnerable
trixie
6.12.27-1
fixed
sid
6.12.30-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
plucky
not-affected
oracular
pending
noble
needed
jammy
needed
focal
needed
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-allwinner-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws
plucky
not-affected
oracular
needed
noble
needed
jammy
needed
focal
needed
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-aws-5.0
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.15
plucky
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oracular
dne
noble
dne
jammy
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focal
needed
bionic
dne
xenial
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trusty
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linux-aws-5.19
plucky
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oracular
dne
noble
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jammy
ignored
focal
dne
bionic
dne
xenial
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trusty
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linux-aws-5.3
plucky
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oracular
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linux-aws-5.4
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linux-aws-5.8
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ignored
bionic
dne
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linux-aws-6.2
plucky
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jammy
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focal
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bionic
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trusty
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linux-aws-6.5
plucky
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oracular
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jammy
ignored
focal
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bionic
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xenial
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linux-aws-6.8
plucky
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needed
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xenial
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linux-aws-fips
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needed
bionic
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xenial
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xenial
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linux-azure
plucky
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needed
noble
needed
jammy
needed
focal
needed
bionic
ignored
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linux-azure-4.15
plucky
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xenial
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trusty
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linux-azure-5.11
plucky
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jammy
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ignored
bionic
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xenial
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trusty
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linux-azure-5.13
plucky
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jammy
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ignored
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ignored
xenial
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ignored
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ignored
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trusty
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linux-azure-6.11
plucky
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oracular
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noble
needed
jammy
dne
focal
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bionic
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xenial
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trusty
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linux-azure-6.2
plucky
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jammy
ignored
focal
dne
bionic
dne
xenial
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linux-azure-6.5
plucky
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jammy
ignored
focal
dne
bionic
dne
xenial
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trusty
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linux-azure-6.8
plucky
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noble
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jammy
needed
focal
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bionic
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xenial
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trusty
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ignored
xenial
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trusty
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needed
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ignored
bionic
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xenial
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linux-azure-fde-5.15
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bionic
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linux-azure-fde-5.19
plucky
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oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-fips
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
needed
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-nvidia
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
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linux-bluefield
plucky
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oracular
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noble
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jammy
dne
focal
needed
bionic
dne
xenial
dne
trusty
dne
linux-fips
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
needed
bionic
not-affected
xenial
not-affected
trusty
dne
linux-gcp
plucky
not-affected
oracular
needed
noble
needed
jammy
needed
focal
needed
bionic
ignored
xenial
not-affected
trusty
dne
linux-gcp-4.15
plucky
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oracular
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noble
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jammy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
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linux-gcp-5.11
plucky
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oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
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linux-gcp-5.13
plucky
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oracular
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ignored
bionic
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xenial
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linux-gcp-5.15
plucky
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jammy
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focal
needed
bionic
dne
xenial
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trusty
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linux-gcp-5.19
plucky
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noble
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jammy
ignored
focal
dne
bionic
dne
xenial
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trusty
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linux-gcp-5.3
plucky
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jammy
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plucky
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ignored
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linux-gcp-5.8
plucky
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noble
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jammy
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focal
ignored
bionic
dne
xenial
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trusty
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linux-gcp-6.11
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
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trusty
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linux-gcp-6.5
plucky
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oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
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linux-gcp-6.8
plucky
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oracular
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noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-fips
plucky
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oracular
dne
noble
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jammy
needed
focal
needed
bionic
not-affected
xenial
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trusty
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linux-gke
plucky
dne
oracular
dne
noble
needed
jammy
needed
focal
ignored
bionic
dne
xenial
ignored
trusty
dne
linux-gke-4.15
plucky
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oracular
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noble
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jammy
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focal
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bionic
ignored
xenial
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linux-gke-5.15
plucky
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oracular
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noble
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jammy
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focal
ignored
bionic
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linux-gke-5.4
plucky
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bionic
ignored
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linux-gkeop
plucky
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needed
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bionic
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xenial
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linux-gkeop-5.15
plucky
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linux-gkeop-5.4
plucky
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linux-hwe-6.8
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ignored
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ignored
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linux-ibm
plucky
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needed
jammy
needed
focal
needed
bionic
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linux-ibm-5.15
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linux-iot
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plucky
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noble
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linux-oem-5.14
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linux-oem-6.0
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dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.11
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.8
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oracle
plucky
not-affected
oracular
needed
noble
needed
jammy
needed
focal
needed
bionic
not-affected
xenial
not-affected
trusty
dne
linux-oracle-5.0
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
needed
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.3
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oracle-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi
plucky
not-affected
oracular
needed
noble
needed
jammy
needed
focal
needed
bionic
dne
xenial
dne
trusty
dne
linux-raspi-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-raspi-realtime
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi2
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
ignored
xenial
ignored
trusty
dne
linux-realtime
plucky
not-affected
oracular
needed
noble
needed
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv
plucky
not-affected
oracular
needed
noble
needed
jammy
ignored
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
needed
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-xilinx-zynqmp
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
needed
bionic
dne
xenial
dne
trusty
dne