CVE-2024-38602 (GCVE-0-2024-38602)
Vulnerability from cvelistv5 – Published: 2024-06-19 13:48 – Updated: 2026-05-23 15:49
VLAI
EPSS
VEX
Title
ax25: Fix reference count leak issues of ax25_dev
Summary
In the Linux kernel, the following vulnerability has been resolved:
ax25: Fix reference count leak issues of ax25_dev
The ax25_addr_ax25dev() and ax25_dev_device_down() exist a reference
count leak issue of the object "ax25_dev".
Memory leak issue in ax25_addr_ax25dev():
The reference count of the object "ax25_dev" can be increased multiple
times in ax25_addr_ax25dev(). This will cause a memory leak.
Memory leak issues in ax25_dev_device_down():
The reference count of ax25_dev is set to 1 in ax25_dev_device_up() and
then increase the reference count when ax25_dev is added to ax25_dev_list.
As a result, the reference count of ax25_dev is 2. But when the device is
shutting down. The ax25_dev_device_down() drops the reference count once
or twice depending on if we goto unlock_put or not, which will cause
memory leak.
As for the issue of ax25_addr_ax25dev(), it is impossible for one pointer
to be on a list twice. So add a break in ax25_addr_ax25dev(). As for the
issue of ax25_dev_device_down(), increase the reference count of ax25_dev
once in ax25_dev_device_up() and decrease the reference count of ax25_dev
after it is removed from the ax25_dev_list.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:13 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
d01ffb9eee4af165d83b08dd73ebdf9fe94a519b , < ae467750a3765dd1092eb29f58247950a2f9b60c
(git)
Affected: d01ffb9eee4af165d83b08dd73ebdf9fe94a519b , < 38eb01edfdaa1562fa00429be2e33f45383b1b3a (git) Affected: d01ffb9eee4af165d83b08dd73ebdf9fe94a519b , < 81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3 (git) Affected: d01ffb9eee4af165d83b08dd73ebdf9fe94a519b , < 1ea02699c7557eeb35ccff2bd822de1b3e09d868 (git) Affected: d01ffb9eee4af165d83b08dd73ebdf9fe94a519b , < b505e0319852b08a3a716b64620168eab21f4ced (git) Affected: ef0a2a0565727a48f2e36a2c461f8b1e3a61922d (git) Affected: e2b558fe507a1ed4c43db2b0057fc6e41f20a14c (git) Affected: 418993bbaafb0cd48f904ba68eeda052d624c821 (git) Affected: 5ea00fc60676c0eebfa8560ec461209d638bca9d (git) Affected: 9af0fd5c4453a44c692be0cbb3724859b75d739b (git) Affected: 4.14.277 , < 4.15 (semver) Affected: 4.19.240 , < 4.20 (semver) Affected: 5.4.190 , < 5.5 (semver) Affected: 5.10.112 , < 5.11 (semver) Affected: 5.15.35 , < 5.16 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.17
Unaffected: 0 , < 5.17 (semver) Unaffected: 6.1.93 , ≤ 6.1.* (semver) Unaffected: 6.6.33 , ≤ 6.6.* (semver) Unaffected: 6.8.12 , ≤ 6.8.* (semver) Unaffected: 6.9.3 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
guessed |
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},
{
"url": "https://git.kernel.org/stable/c/38eb01edfdaa1562fa00429be2e33f45383b1b3a"
},
{
"url": "https://git.kernel.org/stable/c/81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3"
},
{
"url": "https://git.kernel.org/stable/c/1ea02699c7557eeb35ccff2bd822de1b3e09d868"
},
{
"url": "https://git.kernel.org/stable/c/b505e0319852b08a3a716b64620168eab21f4ced"
}
],
"title": "ax25: Fix reference count leak issues of ax25_dev",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-38602",
"datePublished": "2024-06-19T13:48:13.768Z",
"dateReserved": "2024-06-18T19:36:34.933Z",
"dateUpdated": "2026-05-23T15:49:22.528Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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