CVE-2024-57892 (GCVE-0-2024-57892)
Vulnerability from cvelistv5 – Published: 2025-01-15 13:05 – Updated: 2026-05-11 20:59
VLAI
EPSS
VEX
Title
ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
Summary
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
When mounting ocfs2 and then remounting it as read-only, a
slab-use-after-free occurs after the user uses a syscall to
quota_getnextquota. Specifically, sb_dqinfo(sb, type)->dqi_priv is the
dangling pointer.
During the remounting process, the pointer dqi_priv is freed but is never
set as null leaving it to be accessed. Additionally, the read-only option
for remounting sets the DQUOT_SUSPENDED flag instead of setting the
DQUOT_USAGE_ENABLED flags. Moreover, later in the process of getting the
next quota, the function ocfs2_get_next_id is called and only checks the
quota usage flags and not the quota suspended flags.
To fix this, I set dqi_priv to null when it is freed after remounting with
read-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id.
[akpm@linux-foundation.org: coding-style cleanups]
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-13 13:55 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < 58f9e20e2a7602e1dd649a1ec4790077c251cb6c
(git)
Affected: 8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < 8ff6f635a08c30559ded0c110c7ce03ba7747d11 (git) Affected: 8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < f44e6d70c100614c211703f065cad448050e4a0e (git) Affected: 8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < 2d431192486367eee03cc28d0b53b97dafcb8e63 (git) Affected: 8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < 2e3d203b1adede46bbba049e497765d67865be18 (git) Affected: 8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < ba950a02d8d23811aa1120affd3adedcfac6153d (git) Affected: 8f9e8f5fcc059a3cba87ce837c88316797ef3645 , < 5f3fd772d152229d94602bca243fbb658068a597 (git) |
guessed | |
| Linux | Linux |
Affected:
4.6
Unaffected: 0 , < 4.6 (semver) Unaffected: 5.4.290 , ≤ 5.4.* (semver) Unaffected: 5.10.234 , ≤ 5.10.* (semver) Unaffected: 5.15.177 , ≤ 5.15.* (semver) Unaffected: 6.1.125 , ≤ 6.1.* (semver) Unaffected: 6.6.70 , ≤ 6.6.* (semver) Unaffected: 6.12.9 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix) |
guessed |
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Moreover, later in the process of getting the\\nnext quota, the function ocfs2_get_next_id is called and only checks the\\nquota usage flags and not the quota suspended flags.\\n\\nTo fix this, I set dqi_priv to null when it is freed after remounting with\\nread-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id.\\n\\n[akpm@linux-foundation.org: coding-style cleanups]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: se corrige slab-use-after-free debido al puntero colgante dqi_priv Al montar ocfs2 y luego volver a montarlo como de solo lectura, se produce un slab-use-after-free despu\u00e9s de que el usuario usa una llamada al sistema a quota_getnextquota. Espec\u00edficamente, sb_dqinfo(sb, type)-\u0026gt;dqi_priv es el puntero colgante. Durante el proceso de remontaje, el puntero dqi_priv se libera pero nunca se establece como nulo, dej\u00e1ndolo para que se pueda acceder a \u00e9l. 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[akpm@linux-foundation.org: limpiezas de estilo de 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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2025-11-21T13:55:56+00:00",
"cve": "CVE-2024-57892",
"id": "CVE-2024-57892",
"initial_release_date": "2024-01-01T00:00:00+00:00",
"product_status:known_not_affected": "276",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-57892.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-05T00:41:00Z",
"cve": "CVE-2024-57892",
"id": "CVE-2024-57892",
"initial_release_date": "2025-01-16T03:49:13Z",
"product_status:known_affected": "710",
"product_status:known_not_affected": "68",
"product_status:recommended": "384",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-57892",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-57892.json",
"version": "67"
},
"vulnrichment": {
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Specifically, sb_dqinfo(sb, type)-\u003edqi_priv is the\\ndangling pointer.\\n\\nDuring the remounting process, the pointer dqi_priv is freed but is never\\nset as null leaving it to be accessed. Additionally, the read-only option\\nfor remounting sets the DQUOT_SUSPENDED flag instead of setting the\\nDQUOT_USAGE_ENABLED flags. Moreover, later in the process of getting the\\nnext quota, the function ocfs2_get_next_id is called and only checks the\\nquota usage flags and not the quota suspended flags.\\n\\nTo fix this, I set dqi_priv to null when it is freed after remounting with\\nread-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id.\\n\\n[akpm@linux-foundation.org: coding-style cleanups]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.290\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.234\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.177\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.125\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.70\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.9\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"4.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T10:06:02.283Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-57892\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T10:06:02.283Z\", \"dateReserved\": \"2025-01-11T14:45:42.028Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-01-15T13:05:44.635Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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.
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.
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