5.5

CVE-2022-50074: apparmor: Fix memleak in aa_simple_write_to_buffer()

Analyzed
AliasesUBUNTU-CVE-2022-50074DEBIAN-CVE-2022-50074
Published 18-06-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50074 is a medium (CVSS 5.5) vulnerability in 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 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · +0.01 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 4 · Related 4
SUSE-SU-2025:02264-1SUSE-SU-2025:02321-1SUSE-SU-2025:02322-1SUSE-SU-2025:02537-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix memleak in aa_simple_write_to_buffer() When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.19% 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

Affected systems

Version check

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

Ubuntu107 products
  • linux< 5.4.0-132.148 | < 5.15.0-53.59
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 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)
Linux2 products
  • linux≥ a6a52579e52b55448326db88bd9a5740e7c1a037, < 6500eb3a48ac221051b1791818a1ac74744ef617 | ≥ a6a52579e52b55448326db88bd9a5740e7c1a037, < 7db182a2ebeefded86fea542fcc5d6a68bb77f58 | ≥ a6a52579e52b55448326db88bd9a5740e7c1a037, < 8aab4295582eb397a125d2788b829fa62b88dbf7 | ≥ a6a52579e52b55448326db88bd9a5740e7c1a037, < bf7ebebce2c25071c719fd8a2f1307e0c243c2d7 | ≥ a6a52579e52b55448326db88bd9a5740e7c1a037, < 6583edbf459de2e06b9759f264c0ae27e452b97a | ≥ a6a52579e52b55448326db88bd9a5740e7c1a037, < 417ea9fe972d2654a268ad66e89c8fcae67017c3 | 4.17
  • linux_kernel≥ 4.17, < 4.19.256 | ≥ 4.20, < 5.4.211 | ≥ 5.5, < 5.10.138 | ≥ 5.11, < 5.15.63 | ≥ 5.16, < 5.19.4
Debian1 product
  • linux< 6.0.2-1

3 vendors · 110 products

References

9 links