CVE-2022-20422: debian debian_linux Improper Locking

Modified

AliasesUBUNTU-CVE-2022-20422DEBIAN-CVE-2022-20422

Published 11-10-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-20422 is a high (CVSS 7.0) Improper Locking vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 9.1% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (NVD)

EPSS score

0.19%

0%100%

Low · +0.04 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 9

DLA-3173-1 USN-5727-1 USN-5727-2 USN-5728-1 USN-5728-2 USN-5728-3+4 more

Timeline

11-10-2022
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-237540956References: Upstream kernel

CVSS metrics

4 scores · 3 sources · 2 versions

v4.05.8v3.17.0

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

Versus all other CVEs

30-day change

Increase +0.04 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-667Improper LockingThe product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu85 products

linux< 4.4.0-253.287 | < 4.15.0-197.208 | < 5.4.0-132.148 | < 5.15.0-53.59
linux-aws< 4.4.0-1130.136 | < 4.4.0-1168.183 | < 4.15.0-1143.155 | < 5.4.0-1089.97 | < 5.15.0-1023.27
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)
linux-aws-5.13All versions (No fix recorded)

linux-aws-5.15< 5.15.0-1023.27~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1089.97~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2082.88 | All versions (No fix recorded) | < 5.4.0-1089.97+fips1
linux-aws-hwe< 4.15.0-1143.155~16.04.1
linux-azure< 4.15.0-1157.172~14.04.2 | < 4.15.0-1159.174~16.04.1 | All versions (No fix recorded) | < 5.4.0-1095.101 | < 5.15.0-1023.29
linux-azure-4.15< 4.15.0-1157.172
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1023.29~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1095.101~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1024.30.1
linux-azure-fips< 4.15.0-2066.72 | All versions (No fix recorded) | < 5.4.0-1095.101+fips1
linux-bluefield< 5.4.0-1050.56
linux-dell300x< 4.15.0-1055.60
linux-fips< 4.4.0-1100.107 | All versions (No fix recorded) | < 4.15.0-1100.111 | < 5.4.0-1065.74
linux-gcp< 4.15.0-1138.154~16.04.1 | All versions (No fix recorded) | < 5.4.0-1093.102 | < 5.15.0-1022.29
linux-gcp-4.15< 4.15.0-1138.154
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1022.29~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1093.102~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2047.52 | All versions (No fix recorded) | < 5.4.0-1093.102+fips1
linux-gke< 5.4.0-1087.94 | < 5.15.0-1020.25
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1020.25~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1057.61 | < 5.15.0-1008.12
linux-gkeop-5.15< 5.15.0-1008.12~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-197.208~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-53.59~20.04.1
linux-hwe-5.4< 5.4.0-132.148~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1037.42 | < 5.15.0-1018.21
linux-ibm-5.4< 5.4.0-1037.42~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-intel-iotg< 5.15.0-1018.23
linux-intel-iotg-5.15< 5.15.0-1018.23~20.04.1
linux-iot< 5.4.0-1006.8
linux-kvm< 4.4.0-1131.141 | < 4.15.0-1129.134 | < 5.4.0-1079.85 | < 5.15.0-1021.26
linux-lowlatency< 5.15.0-53.59
linux-lowlatency-hwe-5.15< 5.15.0-53.59~20.04.1
linux-lts-xenial< 4.4.0-253.287~14.04.1
linux-nvidia< 5.15.0-1015.15
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oracle< 4.15.0-1108.119~16.04.1 | < 4.15.0-1108.119 | < 5.4.0-1087.96 | < 5.15.0-1022.28
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1022.28~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1087.96~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1074.85 | < 5.15.0-1018.20
linux-raspi-5.4< 5.4.0-1074.85~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1121.129 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1025.28
linux-riscvAll versions (No fix recorded) | < 5.15.0-1023.27
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1023.27~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1139.149

Show all 85

Debian2 products

linux< 5.19.6-1
debian_linuxEOL10.0

Google1 product

androidna

3 vendors · 88 products

References

19 links

source.android.com/security/bulletin/2022-10-01PatchVendor Advisory
lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
ubuntu.com/security/CVE-2022-20422REPORT
source.android.com/docs/security/bulletin/2022-10-01REPORT
git.kernel.org/linus/af483947d472eccb79e42059276c4deed76f99a6REPORT
ubuntu.com/security/notices/USN-5727-1Advisory
ubuntu.com/security/notices/USN-5728-1Advisory
ubuntu.com/security/notices/USN-5729-1Advisory
ubuntu.com/security/notices/USN-5727-2Advisory
ubuntu.com/security/notices/USN-5728-2Advisory

Show all 19 references