CVE-2024-49852 (GCVE-0-2024-49852)
Vulnerability from cvelistv5 – Published: 2024-10-21 12:18 – Updated: 2026-05-11 20:40
VLAI
EPSS
VEX
Title
scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()
The kref_put() function will call nport->release if the refcount drops to
zero. The nport->release release function is _efc_nport_free() which frees
"nport". But then we dereference "nport" on the next line which is a use
after free. Re-order these lines to avoid the use after free.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-21 12:56 UTC
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
fcd427303eb90aa3cb08e7e0b68e0e67a6d47346 , < 16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff
(git)
Affected: fcd427303eb90aa3cb08e7e0b68e0e67a6d47346 , < abc71e89170ed32ecf0a5a29f31aa711e143e941 (git) Affected: fcd427303eb90aa3cb08e7e0b68e0e67a6d47346 , < baeb8628ab7f4577740f00e439d3fdf7c876b0ff (git) Affected: fcd427303eb90aa3cb08e7e0b68e0e67a6d47346 , < 7c2908985e4ae0ea1b526b3916de9e5351650908 (git) Affected: fcd427303eb90aa3cb08e7e0b68e0e67a6d47346 , < 98752fcd076a8cbc978016eae7125b4971be1eec (git) Affected: fcd427303eb90aa3cb08e7e0b68e0e67a6d47346 , < 2e4b02fad094976763af08fec2c620f4f8edd9ae (git) |
guessed | |
| Linux | Linux |
Affected:
5.14
Unaffected: 0 , < 5.14 (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.54 , ≤ 6.6.* (semver) Unaffected: 6.10.13 , ≤ 6.10.* (semver) Unaffected: 6.11.2 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
guessed |
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T14:22:06+00:00",
"cve": "CVE-2024-49852",
"id": "CVE-2024-49852",
"initial_release_date": "2024-10-21T00:00:00+00:00",
"product_status:known_not_affected": "198",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-49852.json",
"version": "3"
},
"suse_vex": {
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"current_release_date": "2026-09-05T16:59:31Z",
"cve": "CVE-2024-49852",
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"initial_release_date": "2024-10-21T15:45:47Z",
"product_status:known_affected": "432",
"product_status:known_not_affected": "340",
"product_status:recommended": "635",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-49852",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-49852.json",
"version": "69"
},
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The nport-\u003erelease release function is _efc_nport_free() which frees\\n\\\"nport\\\". But then we dereference \\\"nport\\\" on the next line which is a use\\nafter free. Re-order these lines to avoid the use after free.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.54\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.13\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.2\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"5.14\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:39:33.051Z\"}}}",
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}
}
}
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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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