5.5

CVE-2023-53097: powerpc/iommu: fix memory leak with using debugfs_lookup()

Analyzed
AliasesUBUNTU-CVE-2023-53097DEBIAN-CVE-2023-53097
Published 02-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53097 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 10.2% 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
0.20%
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 4
RHSA-2024:2394SUSE-SU-2025:02264-1SUSE-SU-2025:02321-1SUSE-SU-2025:02322-1SUSE-SU-2025:02537-1

Timeline

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

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.20% 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.

Ubuntu117 products
  • linuxAll versions (No fix recorded) | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 691602aab9c3cce31d3ff9529c09b7922a5f6224, < e3a62a35f903fd8be5b44542fe3901ec45f16757 | ≥ 691602aab9c3cce31d3ff9529c09b7922a5f6224, < 24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2 | ≥ 691602aab9c3cce31d3ff9529c09b7922a5f6224, < 4050498c0ae3946c223fc63e9dd7b878b76611e0 | ≥ 691602aab9c3cce31d3ff9529c09b7922a5f6224, < b505063910c134778202dfad9332dfcecb76bab3 | 5.12
  • linux_kernel< 5.15.103 | ≥ 5.16, < 6.1.20 | ≥ 6.2, < 6.2.7
Debian1 product
  • linux< 6.1.20-1

3 vendors · 120 products

References

8 links