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CVE-2021-28972

Published: 22 March 2021

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.

From the Ubuntu security team

It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 6.7

Status

Package Release Status
linux-aws-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 Not vulnerable
(5.8.0-1035.37~20.04.1)
upstream
Released (5.12~rc4)
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

focal Not vulnerable
(5.8.0-1033.35~20.04.1)
upstream
Released (5.12~rc4)
impish Does not exist

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

focal Not vulnerable
(5.8.0-1032.34~20.04.1)
upstream
Released (5.12~rc4)
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

focal Not vulnerable
(5.8.0-1031.32~20.04.2)
upstream
Released (5.12~rc4)
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

upstream
Released (5.12~rc4)
focal
Released (5.8.0-26.28~20.04.1)
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 (5.12~rc4)
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

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

upstream
Released (5.12~rc4)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.11.0-1007.7~20.04.2)
hirsute Does not exist

upstream
Released (5.12~rc4)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.11.0-1008.8~20.04.1)
hirsute Does not exist

upstream
Released (5.12~rc4)
impish Does not exist

jammy Does not exist

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

xenial Does not exist

bionic Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
focal
Released (5.4.0-1012.15)
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 (5.12~rc4)
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 (5.12~rc4)
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-aws-hwe
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1103.110~16.04.1)
impish Does not exist

precise Does not exist

trusty Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1115.128~16.04.1)
impish Not vulnerable
(5.11.0-1004.4)
precise Does not exist

bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1048.50)
groovy
Released (5.8.0-1033.35)
trusty
Released (4.15.0-1115.128~14.04.1)
upstream
Released (5.12~rc4)
hirsute Not vulnerable
(5.11.0-1003.3)
jammy Not vulnerable
(5.13.0-1006.7)
linux-gcp
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1100.113~16.04.1)
impish Not vulnerable
(5.11.0-1006.6)
precise Does not exist

trusty Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1044.47)
groovy
Released (5.8.0-1032.34)
upstream
Released (5.12~rc4)
hirsute Not vulnerable
(5.11.0-1004.4)
jammy Not vulnerable
(5.13.0-1005.6)
linux-hwe
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-144.148~16.04.1)
impish Does not exist

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
xenial
Released (4.15.0-1072.80~16.04.1)
impish Not vulnerable
(5.11.0-1005.5)
precise Does not exist

trusty Does not exist

groovy
Released (5.8.0-1031.32)
upstream
Released (5.12~rc4)
hirsute Not vulnerable
(5.11.0-1003.3)
jammy Not vulnerable
(5.13.0-1008.10)
bionic
Released (4.15.0-1072.80)
focal
Released (5.4.0-1046.50)
linux
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-16.17)
hirsute Not vulnerable
(5.11.0-14.15)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.12~rc4)
xenial
Released (4.4.0-219.252)
bionic
Released (4.15.0-144.148)
jammy Not vulnerable
(5.13.0-19.19)
focal
Released (5.4.0-74.83)
groovy
Released (5.8.0-55.62)
linux-hwe-5.4
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
jammy Does not exist

bionic
Released (5.4.0-74.83~18.04.1)
linux-hwe-5.8
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
jammy Does not exist

focal
Released (5.8.0-55.62~20.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
impish Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

precise Ignored
(was needs-triage ESM criteria)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
trusty
Released (4.4.0-219.252~14.04.1)
jammy Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1006.6)
precise Does not exist

trusty Does not exist

groovy
Released (5.8.0-1028.30)
upstream
Released (5.12~rc4)
hirsute Not vulnerable
(5.11.0-1004.4)
xenial
Released (4.4.0-1100.109)
jammy Not vulnerable
(5.13.0-1004.4)
bionic
Released (4.15.0-1092.94)
focal
Released (5.4.0-1040.41)
linux-aws
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1006.6)
precise Does not exist

bionic
Released (4.15.0-1103.110)
focal
Released (5.4.0-1049.51)
groovy
Released (5.8.0-1035.37)
hirsute Not vulnerable
(5.11.0-1004.4)
trusty
Released (4.4.0-1099.104)
upstream
Released (5.12~rc4)
xenial
Released (4.4.0-1135.149)
jammy Not vulnerable
(5.13.0-1005.6)
linux-aws-5.0
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1049.51~18.04.1)
upstream
Released (5.12~rc4)
jammy Does not exist

linux-azure-4.15
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1115.128)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1048.50~18.04.1)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1022.26)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (4.15.0-1100.113)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1044.47~18.04.2)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Ignored
(was needed now end-of-life)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1044.46~18.04.1)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal
Released (5.4.0-1016.17)
upstream
Released (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic
Released (5.4.0-1016.17~18.04.1)
upstream
Released (5.12~rc4)
jammy Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
jammy Does not exist

bionic
Released (5.4.0-1046.50~18.04.2)
linux-oem
Launchpad, Ubuntu, Debian
impish Does not exist

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

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 (5.12~rc4)
jammy Does not exist

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

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.10.0-1025.26)
groovy Does not exist

hirsute Does not exist

upstream
Released (5.12~rc4)
jammy Does not exist

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

upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1007.7)
upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1036.39)
groovy
Released (5.8.0-1026.29)
hirsute Not vulnerable
(5.11.0-1005.5)
jammy Not vulnerable
(5.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
impish Does not exist

upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Ignored
(was needed now end-of-life)
bionic
Released (4.15.0-1086.91)
focal Ignored
(replaced by linux-raspi)
groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Does not exist

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

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1036.39~18.04.1)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
impish Not vulnerable
(5.11.0-1007.7)
upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
groovy
Released (5.8.0-26.28)
hirsute Not vulnerable
(5.11.0-1005.5)
jammy Not vulnerable
(5.13.0-1004.4)
linux-snapdragon
Launchpad, Ubuntu, Debian
impish Does not exist

upstream
Released (5.12~rc4)
precise Does not exist

trusty Does not exist

xenial Ignored
(was needed now end-of-life)
bionic
Released (4.15.0-1103.112)
focal Does not exist

groovy Does not exist

hirsute Does not exist

jammy Does not exist

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

precise Does not exist

trusty Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

jammy Not vulnerable
(5.15.0-1002.2)
focal
Released (5.4.0-1044.46)
upstream
Released (5.12~rc4)
xenial Ignored
(reached end of standard support)
linux-ibm
Launchpad, Ubuntu, Debian
impish Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

focal Not vulnerable
(5.4.0-1003.4)
upstream
Released (5.12~rc4)
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 (5.12~rc4)
jammy Does not exist

linux-oem-5.14
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
(5.14.0-1004.4)
upstream
Released (5.12~rc4)
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 (5.12~rc4)
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 (5.12~rc4)
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 (5.12~rc4)
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 (5.12~rc4)
jammy Does not exist

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

xenial Not vulnerable
(4.4.0-1073.79)
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.12~rc4)
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 (5.12~rc4)
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 (5.12~rc4)
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 (5.12~rc4)
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 Needed

upstream
Released (5.12~rc4)
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