01 Record

CVE-2023-53234

watchdog: Fix kmemleak in watchdog_cdev_register

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

watchdog: Fix kmemleak in watchdog_cdev_register

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.0% 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

2025-09-15 14:22Z1 YR AGO

Last updated

2026-05-23 15:28Z5 MO AGO

Reserved

2025-09-15

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

72ae5fa07492c779908967079d1279cbe12a3f5d24cec1f3474fdde89ab4c801

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux450caf1faa0d7bbbd1da93d3ee8c5edea7bc51a8 to < bf26b0e430ce34261f45959989edaf680b64d538, f4c36f1999745c2160422fe2f362deadbe3a136b to < 8c1655600f4f2839fb844fe8c70b2b65fadc7a56, ca7851d46de8a8d69022c4e5feed0820483b5f46 to < 59e391b3fc507a15b7e8e9d9f4de87cae177c366, 72139dfa2464e43957d330266994740bb7be2535 to < c5a21a5501508ae3afa2fe6d5a3e74a37fa48df3, 72139dfa2464e43957d330266994740bb7be2535 to < 23cc41c3f19c4d858c3708f1c0a06e94958e6c3b, 72139dfa2464e43957d330266994740bb7be2535 to < ac099d94e0480c937aa9172ab64074981ca1a4d3, 72139dfa2464e43957d330266994740bb7be2535 to < 50808d034e199fe3ff7a9d2068a4eebeb6b4098a, 72139dfa2464e43957d330266994740bb7be2535 to < 13721a2ac66b246f5802ba1b75ad8637e53eeecc, f76905ce52653e8a821963c35d9013cff19b1399, 4.14.182 to < 4.14.308, 4.19.93 to < 4.19.276, 5.4.8 to < 5.4.235, 4.9.225 to < 4.10, 5.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/bf26b0e430ce34261f45959989edaf680b64d538
git.kernel.orghttps://git.kernel.org/stable/c/8c1655600f4f2839fb844fe8c70b2b65fadc7a56
git.kernel.orghttps://git.kernel.org/stable/c/59e391b3fc507a15b7e8e9d9f4de87cae177c366
git.kernel.orghttps://git.kernel.org/stable/c/c5a21a5501508ae3afa2fe6d5a3e74a37fa48df3
git.kernel.orghttps://git.kernel.org/stable/c/23cc41c3f19c4d858c3708f1c0a06e94958e6c3b
git.kernel.orghttps://git.kernel.org/stable/c/ac099d94e0480c937aa9172ab64074981ca1a4d3
git.kernel.orghttps://git.kernel.org/stable/c/50808d034e199fe3ff7a9d2068a4eebeb6b4098a
git.kernel.orghttps://git.kernel.org/stable/c/13721a2ac66b246f5802ba1b75ad8637e53eeecc

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.