01 Record

CVE-2023-53408

trace/blktrace: fix memory leak with using debugfs_lookup()

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

trace/blktrace: fix memory leak with using debugfs_lookup()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.5% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-09-18 13:58Z1 YR AGO

Last updated

2026-05-23 15:28Z5 MO AGO

Reserved

2025-09-17

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-401Missing Release of Memory after Effective LifetimeVariant
CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

01236893d8bee021988bf6e7ffdd538587a85556dd2fc03ae4c73ead6a547d83

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux78acc7dbd84a8c173a08584750845c31611160f2 to < a2e4b48d6f9b39aa19bafe223f9dd436a692fc80, 30939293262eb433c960c4532a0d59c4073b2b84 to < 3036f5f5ae5210797d95446795df01c1249af9ad, 30939293262eb433c960c4532a0d59c4073b2b84 to < 5286b72fb425291af5f4ca7285d73c16a08d8691, 30939293262eb433c960c4532a0d59c4073b2b84 to < 83e8864fee26f63a7435e941b7c36a20fd6fe93e, 6418634238ade86f2b08192928787f39d8afb58c, 5.15.27 to < 5.15.99, 5.16.13 to < 5.17, 5.17—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80
git.kernel.orghttps://git.kernel.org/stable/c/3036f5f5ae5210797d95446795df01c1249af9ad
git.kernel.orghttps://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691
git.kernel.orghttps://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e

07 Fixed in

Debian 12

linux
Fixed in 6.1.20-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.1.20-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.1.20-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.