CVE-2020-29660

Published: 09 December 2020

A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.

From the Ubuntu security team

Jann Horn discovered that the tty subsystem of the Linux kernel did not use consistent locking in some situations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).

Priority

Medium

CVSS 3 base score: 4.4

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(5.10.0-14.15)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-44.50)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-66.74)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-136.140)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-203.235)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-1025.27+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-1024.26)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1038.40)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1094.101)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1122.136)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-1086.90)
linux-aws-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-aws-5.3)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-aws-5.4)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1038.40~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1094.101~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-1024.26+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-1023.25)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1040.42)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-azure-5.3)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1108.120~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.15.0-1108.120~14.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1108.120)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-azure-5.4)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1040.42~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-azure-5.3)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1012.16)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-1024.25+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-1023.24)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1037.40)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-gcp-5.3)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1093.106~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1093.106)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-gcp-5.4)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1037.40~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-gcp-5.3)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1079.84)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Needed

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1036.38~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1010.11)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1010.11~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(replaced by linux-hwe-5.4)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-136.140~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-66.74~18.04.2)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa)
Released (5.8.0-44.50~20.04.1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-hwe-5.4)
Ubuntu 16.04 LTS (Xenial Xerus) Ignored
(superseded by linux-hwe)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-1020.22+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-1019.21)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1033.34)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1085.87)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1088.97)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-203.235~14.04.1)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Ignored
(superseded by linux-hwe)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.10.0-1008.9)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa)
Released (5.6.0-1048.52)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-1022.23+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-1021.22)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1038.41)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1065.73)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1065.73~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-oracle-5.3)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(superseded by linux-oracle-5.4)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1038.41~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-1017.20+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-1016.19)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.4.0-1029.32)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.4.0-1029.32~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Ignored
(replaced by linux-raspi)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1079.84)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1146.156)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Needed

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Pending
(5.8.0-18.20+21.04.1)
Ubuntu 20.10 (Groovy Gorilla)
Released (5.8.0-17.19)
Ubuntu 20.04 LTS (Focal Fossa) Ignored
(was needed now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.10~rc7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1096.105)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1150.160)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist