CVE-2022-50395: integrity: Fix memory leakage in keyring allocation error path
Vulnerability summary
CVE-2022-50395 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 18-09-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: integrity: Fix memory leakage in keyring allocation error path Key restriction is allocated in integrity_init_keyring(). However, if keyring allocation failed, it is not freed, causing memory leaks.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.16% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu119 products
- linuxAll versions (No fix recorded) | < 5.4.0-144.161 | < 5.15.0-69.76
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1097.105 | < 5.15.0-1033.37
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 2b6aa412ff23a02ac777ad307249c60a839cfd25, < 9b7c44885a07c5ee7f9bf3aa3c9c72fb110c8d22 | ≥ 2b6aa412ff23a02ac777ad307249c60a839cfd25, < 3bd737289c26be3cee4b9afaf61ef784a2af9d6e | ≥ 2b6aa412ff23a02ac777ad307249c60a839cfd25, < 29d6c69ba4b96a1de0376e44e5f8b38b13ec8803 | ≥ 2b6aa412ff23a02ac777ad307249c60a839cfd25, < 57e49ad12f8f5df0c48e1710c54b147a05a10c32 | ≥ 2b6aa412ff23a02ac777ad307249c60a839cfd25, < c591c48842f08d30ec6b8416757831985ed9a315 | ≥ 2b6aa412ff23a02ac777ad307249c60a839cfd25, < 39419ef7af0916cc3620ecf1ed42d29659109bf3 | 4.12
- linux_kernel≥ 4.12, < 5.4.229 | ≥ 5.5, < 5.10.163 | ≥ 5.11, < 5.15.86 | ≥ 5.16, < 6.0.16 | ≥ 6.1, < 6.1.2
Debian1 product
- linux< 6.1.4-1
3 vendors · 122 products