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CVE-2020-36385

Published: 7 June 2021

An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.

From the Ubuntu security team

It was discovered that the Infiniband RDMA userspace connection manager implementation in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
trusty Ignored
(was needed ESM criteria)
xenial
Released (4.4.0-222.255)
groovy Ignored
(reached end-of-life)
hirsute Not vulnerable
(5.10.0-14.15)
upstream
Released (5.10~rc1)
impish Not vulnerable
(5.11.0-16.17)
bionic
Released (4.15.0-162.170)
focal
Released (5.4.0-90.101)
jammy Not vulnerable
(5.13.0-19.19)
linux-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

xenial
Released (4.15.0-162.170~16.04.1)
jammy Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-90.101~18.04.1)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

focal Ignored
(was pending [5.8.0-67.75] now end-of-life)
jammy Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty
Released (4.4.0-222.255~14.04.1)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial
Released (4.4.0-1103.112)
groovy Ignored
(reached end-of-life)
hirsute Not vulnerable
(5.11.0-1003.3)
upstream
Released (5.10~rc1)
impish Not vulnerable
(5.11.0-1006.6)
bionic
Released (4.15.0-1102.104)
focal
Released (5.4.0-1049.51)
jammy Not vulnerable
(5.13.0-1004.4)
linux-aws
Launchpad, Ubuntu, Debian
trusty
Released (4.4.0-1102.107)
xenial
Released (4.4.0-1138.152)
hirsute Not vulnerable
(5.11.0-1003.3)
upstream
Released (5.10~rc1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1006.6)
bionic
Released (4.15.0-1115.122)
focal
Released (5.4.0-1059.62)
jammy Not vulnerable
(5.13.0-1005.6)
linux-aws-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (5.4.0-1059.62~18.04.1)
jammy Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

xenial
Released (4.15.0-1115.122~16.04.1)
jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
hirsute Not vulnerable
(5.11.0-1002.2)
upstream
Released (5.10~rc1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1004.4)
focal
Released (5.4.0-1063.66)
trusty
Released (4.15.0-1126.139~14.04.1)
xenial
Released (4.15.0-1126.139~16.04.1)
jammy Not vulnerable
(5.13.0-1006.7)
linux-azure-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1126.139)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (5.4.0-1063.66~18.04.1)
jammy Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1030.35)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1057.61)
hirsute Not vulnerable
(5.11.0-1003.3)
upstream
Released (5.10~rc1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1006.6)
xenial
Released (4.15.0-1111.125~16.04.1)
jammy Not vulnerable
(5.13.0-1005.6)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (4.15.0-1111.125)
jammy Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1057.61~18.04.1)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-gke
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

xenial Ignored
(reached end of standard support)
upstream
Released (5.10~rc1)
impish Does not exist

focal
Released (5.4.0-1055.58)
jammy Not vulnerable
(5.15.0-1002.2)
linux-gke-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
bionic Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
bionic Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1055.58~18.04.1)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

focal
Released (5.4.0-1026.27)
jammy Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (5.4.0-1026.27~18.04.1)
jammy Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
trusty Does not exist

hirsute Not vulnerable
(5.11.0-1002.2)
upstream
Released (5.10~rc1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1005.5)
bionic
Released (4.15.0-1083.91)
focal
Released (5.4.0-1057.61)
xenial
Released (4.15.0-1083.91~16.04.1)
jammy Not vulnerable
(5.13.0-1008.10)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (5.4.0-1057.61~18.04.1)
jammy Does not exist

linux-oem
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.10.0-1008.9)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
bionic Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Not vulnerable
(5.11.0-1003.3)
upstream
Released (5.10~rc1)
groovy Ignored
(reached end-of-life)
impish Not vulnerable
(5.11.0-1007.7)
focal
Released (5.4.0-1046.50)
jammy Not vulnerable
(5.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
trusty Does not exist

focal Ignored
(replaced by linux-raspi)
groovy Does not exist

hirsute Does not exist

xenial Ignored
(was needs-triage now end-of-life)
upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (4.15.0-1098.104)
jammy Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
bionic Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

bionic
Released (5.4.0-1046.50~18.04.1)
jammy Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Ignored
(reached end-of-life)
upstream
Released (5.10~rc1)
focal Ignored
(was needs-triage now end-of-life)
hirsute Not vulnerable
(5.11.0-1004.4)
impish Not vulnerable
(5.11.0-1007.7)
jammy Not vulnerable
(5.13.0-1004.4)
linux-snapdragon
Launchpad, Ubuntu, Debian
trusty Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
xenial Ignored
(was needs-triage now end-of-life)
impish Does not exist

bionic
Released (4.15.0-1115.124)
jammy Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(was needed now end-of-life)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

focal Ignored
(was needed now end-of-life)
jammy Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

linux-riscv-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Ignored
(was needed now end-of-life)
upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-hwe-5.11
Launchpad, Ubuntu, Debian
focal Not vulnerable
(5.11.0-22.23~20.04.1)
upstream
Released (5.10~rc1)
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
focal Not vulnerable
(5.11.0-1015.16~20.04.1)
upstream
Released (5.10~rc1)
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-1009.10)
hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

focal Not vulnerable
(5.11.0-1009.9~20.04.2)
jammy Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal Not vulnerable
(5.11.0-1007.7~20.04.2)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal Not vulnerable
(5.11.0-1008.8~20.04.1)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-bluefield
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1021.24)
hirsute Does not exist

upstream
Released (5.10~rc1)
impish Does not exist

jammy Does not exist

linux-ibm
Launchpad, Ubuntu, Debian
impish Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1007.8)
hirsute Does not exist

upstream
Released (5.10~rc1)
jammy Not vulnerable
(5.15.0-1002.2)
linux-gcp-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

impish Does not exist

focal Not vulnerable
(5.11.0-1009.10~20.04.1)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.14.0-1004.4)
hirsute Does not exist

impish Does not exist

upstream
Released (5.10~rc1)
jammy Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

hirsute Does not exist

impish Does not exist

upstream
Released (5.10~rc1)
jammy Does not exist

linux-azure-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1009.10~20.04.2)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-21.21~20.04.1)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1008.9~20.04.2)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-fips
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.10~rc1)
xenial Not vulnerable
(4.4.0-1073.79)
jammy Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1011.13~20.04.2)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.13.0-1008.9~20.04.3)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic Not vulnerable
(5.4.0-1010.11~18.04.2)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Not vulnerable
(5.4.0-1063.66+cvm2.2)
upstream
Released (5.10~rc1)
jammy Does not exist

linux-lowlatency
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable

upstream Needs triage

linux-oem-5.17
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable

upstream Needs triage