5.5

CVE-2022-49668: PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events

Modified
AliasesUBUNTU-CVE-2022-49668DEBIAN-CVE-2022-49668
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49668 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 18.4% 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 (CVE.org)
EPSS score
0.26%
0%100%
Low · 0.00 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 5 · Related 5
SUSE-SU-2025:01600-1SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1241-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. This function only calls of_node_put() in normal path, missing it in error paths. Add missing of_node_put() to avoid refcount leak.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.26% 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

No weakness data has been published for this record.

Affected systems

Version check

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

Ubuntu111 products
  • linuxAll versions (No fix recorded) | < 5.4.0-128.144 | < 5.15.0-48.54
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1086.93 | < 5.15.0-1020.24
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f262f28c147051e7aa6daaf4fb5996833ffadff4, < bdecd912e99acfd61507f1720d3f4eed1b3418d8 | ≥ f262f28c147051e7aa6daaf4fb5996833ffadff4, < e65027fdebbacd40595e96ef7b5d2418f71bddf2 | ≥ f262f28c147051e7aa6daaf4fb5996833ffadff4, < 01121e39ef537289926ae6f5374dce92c796d863 | ≥ f262f28c147051e7aa6daaf4fb5996833ffadff4, < 194781229d4cbc804b8ded13156eb8addce87d6c | ≥ f262f28c147051e7aa6daaf4fb5996833ffadff4, < f44b799603a9b5d2e375b0b2d54dd0b791eddfc2 | 4.0
  • linux_kernel≥ 4.0, < 5.4.204 | ≥ 5.5, < 5.10.129 | ≥ 5.11, < 5.15.53 | ≥ 5.16, < 5.18.10 | 5.19:rc1 | 5.19:rc2 | 5.19:rc3 | 5.19:rc4
Debian1 product
  • linux< 5.18.14-1

3 vendors · 114 products

References

9 links