CVE-2020-10781

Published: 18 June 2020

A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.

From the Ubuntu Security Team

Luca Bruno discovered that the zram module in the Linux kernel did not properly restrict unprivileged users from accessing the hot_add sysfs file. A local attacker could use this to cause a denial of service (memory exhaustion).

Notes

Author	Note
sbeattie	zram module is not loaded by default, but is enabled.

Priority

Cvss 3 Severity Score

5.5

Score breakdown

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 (5.8~rc6)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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	Not vulnerable (5.8.0-14.16~20.04.1)
	upstream	Released (5.8~rc6)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.11 Launchpad, Ubuntu, Debian	focal	Not vulnerable (5.11.0-22.23~20.04.1)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-riscv-5.11 Launchpad, Ubuntu, Debian	focal	Not vulnerable (5.11.0-1015.16~20.04.1)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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
	impish	Does not exist
	focal	Not vulnerable (5.11.0-1009.9~20.04.2)
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (was needed now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (was needed now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-bluefield Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Not vulnerable (5.4.0-1007.10)
	upstream	Released (5.8~rc6)
	impish	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	jammy	Not vulnerable (5.15.0-1011.13)
linux-hwe Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needed now end-of-life)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Released (4.15.0-115.116~16.04.1)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	xenial	Ignored (was needs-triage ESM criteria)
	kinetic	Does not exist
	lunar	Does not exist
linux-lts-trusty Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	trusty	Not vulnerable (4.4.0-13.29~14.04.1)
	upstream	Released (5.8~rc6)
	xenial	Does not exist
	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	hirsute	Not vulnerable (5.8.0-1010.11+21.04.1)
	impish	Not vulnerable (5.11.0-1006.6)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Not vulnerable (4.4.0-1004.9)
	bionic	Released (4.15.0-1072.73)
	eoan	Ignored (reached end-of-life)
	focal	Released (5.4.0-1021.21)
	groovy	Not vulnerable (5.8.0-1001.1)
	jammy	Not vulnerable (5.13.0-1004.4)
	kinetic	Not vulnerable (5.15.0-1004.4)
	lunar	Not vulnerable (5.15.0-1004.4)
linux-aws-5.0 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needed now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Released (4.15.0-1080.84~16.04.1)
	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-4.15 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (4.15.0-1093.103)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needed now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-4.15 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (4.15.0-1081.92)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needed now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (4.15.0-1067.70)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needed now end-of-life)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws Launchpad, Ubuntu, Debian	hirsute	Not vulnerable (5.8.0-1018.20+21.04.1)
	impish	Not vulnerable (5.11.0-1006.6)
	trusty	Not vulnerable (4.4.0-1002.2)
	upstream	Released (5.8~rc6)
	xenial	Not vulnerable (4.4.0-1001.10)
	bionic	Released (4.15.0-1080.84)
	eoan	Ignored (reached end-of-life)
	focal	Released (5.4.0-1022.22)
	groovy	Not vulnerable (5.8.0-1004.4)
	jammy	Not vulnerable (5.13.0-1005.6)
	kinetic	Not vulnerable (5.15.0-1004.6)
	lunar	Not vulnerable (5.15.0-1004.6)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (was needed now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	trusty	Does not exist
	upstream	Released (5.8~rc6)
	bionic	Released (4.15.0-1094.104)
	eoan	Ignored (reached end-of-life)
	focal	Does not exist
	groovy	Does not exist
	xenial	Ignored (was needs-triage now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	eoan	Does not exist
	focal	Released (5.6.0-1053.57)
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needed now end-of-life)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	eoan	Ignored (reached end-of-life)
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Not vulnerable (4.2.0-1013.19)
	eoan	Ignored (reached end-of-life)
	focal	Ignored (was needs-triage now end-of-life)
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	bionic	Released (4.15.0-1068.72)
	lunar	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Not vulnerable (4.4.0-1013.15)
	bionic	Released (4.15.0-1084.92)
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (5.4.0-45.49~18.04.2)
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	bionic	Released (5.4.0-1016.17~18.04.1)
	lunar	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (5.4.0-1023.23~18.04.1)
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	hirsute	Not vulnerable (5.8.0-1008.11+21.04.1)
	impish	Not vulnerable (5.11.0-1007.7)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	eoan	Does not exist
	focal	Released (5.4.0-1016.17)
	groovy	Not vulnerable (5.4.0-1016.17)
	jammy	Not vulnerable (5.13.0-1008.9)
	kinetic	Not vulnerable (5.15.0-1005.5)
	lunar	Not vulnerable (5.15.0-1005.5)
linux-oracle-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (5.4.0-1022.22~18.04.1)
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (5.4.0-1022.22~18.04.1)
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Released (5.4.0-1022.22~18.04.1)
	focal	Does not exist
	groovy	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.11.0-16.17)
	hirsute	Not vulnerable (5.8.0-36.40+21.04.1)
	xenial	Not vulnerable (4.4.0-2.16)
	upstream	Released (5.8~rc6)
	bionic	Released (4.15.0-115.116)
	eoan	Ignored (reached end-of-life)
	focal	Released (5.4.0-45.49)
	groovy	Not vulnerable (5.8.0-16.17)
	trusty	Not vulnerable (3.11.0-12.19)
	jammy	Not vulnerable (5.13.0-19.19)
	kinetic	Not vulnerable (5.15.0-25.25)
	lunar	Not vulnerable (5.15.0-25.25)
	Patches: Introduced by f40609d1591fbbd9d391f1f8220173237911ab23 Fixed by 853eab68afc80f59f36bbdeb715e5c88c501e680
linux-azure Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.11.0-1004.4)
	hirsute	Not vulnerable (5.8.0-1016.17+21.04.1)
	upstream	Released (5.8~rc6)
	trusty	Released (4.15.0-1093.103~14.04.1)
	xenial	Released (4.15.0-1093.103~16.04.1)
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Ignored (reached end-of-life)
	focal	Released (5.4.0-1023.23)
	groovy	Not vulnerable (5.8.0-1004.4)
	jammy	Not vulnerable (5.13.0-1006.7)
	kinetic	Not vulnerable (5.15.0-1003.4)
	lunar	Not vulnerable (5.15.0-1003.4)
linux-gcp Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.11.0-1006.6)
	hirsute	Not vulnerable (5.8.0-1015.15+21.04.1)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Released (4.15.0-1081.92~16.04.1)
	bionic	Ignored (was needs-triage now end-of-life)
	eoan	Ignored (reached end-of-life)
	focal	Released (5.4.0-1022.22)
	groovy	Not vulnerable (5.8.0-1002.2)
	jammy	Not vulnerable (5.13.0-1005.6)
	kinetic	Not vulnerable (5.15.0-1003.6)
	lunar	Not vulnerable (5.15.0-1003.6)
linux-oracle Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.11.0-1005.5)
	hirsute	Not vulnerable (5.8.0-1014.14+21.04.1)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Released (4.15.0-1051.55~16.04.1)
	bionic	Released (4.15.0-1051.55)
	eoan	Ignored (reached end-of-life)
	focal	Released (5.4.0-1022.22)
	groovy	Not vulnerable (5.8.0-1001.1)
	jammy	Not vulnerable (5.13.0-1008.10)
	kinetic	Not vulnerable (5.15.0-1002.4)
	lunar	Not vulnerable (5.15.0-1002.4)
linux-riscv Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.11.0-1007.7)
	hirsute	Not vulnerable (5.8.0-10.12+21.04.1)
	upstream	Released (5.8~rc6)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	eoan	Does not exist
	focal	Released (5.4.0-31.35)
	groovy	Not vulnerable (5.8.0-1.1)
	jammy	Not vulnerable (5.13.0-1004.4)
	kinetic	Not vulnerable (5.15.0-1007.7)
	lunar	Not vulnerable (5.15.0-1007.7)
linux-hwe-5.8 Launchpad, Ubuntu, Debian	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	focal	Not vulnerable (5.8.0-23.24~20.04.1)
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	bionic	Not vulnerable (5.4.0-1025.25~18.04.1)
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	bionic	Not vulnerable (5.4.0-1001.1)
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-dell300x Launchpad, Ubuntu, Debian	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	bionic	Not vulnerable (4.15.0-1005.8)
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.10 Launchpad, Ubuntu, Debian	impish	Does not exist
	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gkeop Launchpad, Ubuntu, Debian	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	focal	Not vulnerable (5.4.0-1008.9)
	upstream	Released (5.8~rc6)
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-gke Launchpad, Ubuntu, Debian	impish	Does not exist
	trusty	Does not exist
	bionic	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	focal	Not vulnerable (5.4.0-1033.35)
	upstream	Released (5.8~rc6)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Does not exist
	xenial	Ignored (reached end of standard support)
	lunar	Does not exist
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 (5.8~rc6)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1002.2)
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-intel-5.13 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 (5.13.0-1007.7)
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-fips Launchpad, Ubuntu, Debian	xenial	Ignored (out of standard support)
	trusty	Does not exist
	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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 (5.8~rc6)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	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	Released (5.4.0-1023.23)
	upstream	Released (5.8~rc6)
	jammy	Needs triage
	kinetic	Does not exist
	lunar	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 (5.15.0-22.22)
	upstream	Released (5.8~rc6)
	kinetic	Not vulnerable (5.15.0-24.24)
	lunar	Not vulnerable (5.15.0-24.24)
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 (5.17.0-1003.3)
	upstream	Released (5.8~rc6)
	kinetic	Not vulnerable (5.17.0-1003.3)
	lunar	Does not exist
linux-intel-iotg Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	jammy	Not vulnerable (5.15.0-1004.6)
linux-intel-iotg-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	focal	Not vulnerable (5.15.0-1003.5~20.04.1)
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	upstream	Needs triage
	focal	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	upstream	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
linux-oem-6.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-oem-6.1 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-hwe-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-azure-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-iot Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-riscv-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-azure-fde-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-xilinx-zynqmp Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Bugs

https://bugzilla.redhat.com/show_bug.cgi?id=1847832

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