CVE-2023-54264 (GCVE-0-2023-54264)
Vulnerability from cvelistv5 – Published: 2025-12-30 12:15 – Updated: 2026-05-11 19:58
VLAI
EPSS
VEX
Title
fs/sysv: Null check to prevent null-ptr-deref bug
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs/sysv: Null check to prevent null-ptr-deref bug
sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on
that leads to the null-ptr-deref bug.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
e5657933863f43cc6bb76a54d659303dafaa9e58 , < e976988bc245ec3768cc0f76bed7d05488a7dd0f
(git)
Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < baa60c66a310c50785289b0ede6fdce8ec3219c7 (git) Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < 0a44ceba77c3267f8505dda102a59367dc24caee (git) Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < 7f740bc696d4617f8ee44565e8ac0d36278a1e91 (git) Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 (git) Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < 1416eebaad80bdc85ad9f97f27242011b031e2a9 (git) Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < e28f376dd8dfcc4e880ac101184132bc08703f6e (git) Affected: e5657933863f43cc6bb76a54d659303dafaa9e58 , < ea2b62f305893992156a798f665847e0663c9f41 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.19
Unaffected: 0 , < 2.6.19 (semver) Unaffected: 4.14.322 , ≤ 4.14.* (semver) Unaffected: 4.19.291 , ≤ 4.19.* (semver) Unaffected: 5.4.253 , ≤ 5.4.* (semver) Unaffected: 5.10.190 , ≤ 5.10.* (semver) Unaffected: 5.15.126 , ≤ 5.15.* (semver) Unaffected: 6.1.45 , ≤ 6.1.* (semver) Unaffected: 6.4.10 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
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{
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"programFiles": [
"fs/sysv/itree.c"
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{
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],
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.19"
},
{
"lessThan": "2.6.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.322",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.253",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.190",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.126",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.45",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.322",
"versionStartIncluding": "2.6.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.291",
"versionStartIncluding": "2.6.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.253",
"versionStartIncluding": "2.6.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.190",
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"vulnerable": true
},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.45",
"versionStartIncluding": "2.6.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.4.10",
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{
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}
],
"negate": false,
"operator": "OR"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/sysv: Null check to prevent null-ptr-deref bug\n\nsb_getblk(inode-\u003ei_sb, parent) return a null ptr and taking lock on\nthat leads to the null-ptr-deref bug."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:58:36.713Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/e976988bc245ec3768cc0f76bed7d05488a7dd0f"
},
{
"url": "https://git.kernel.org/stable/c/baa60c66a310c50785289b0ede6fdce8ec3219c7"
},
{
"url": "https://git.kernel.org/stable/c/0a44ceba77c3267f8505dda102a59367dc24caee"
},
{
"url": "https://git.kernel.org/stable/c/7f740bc696d4617f8ee44565e8ac0d36278a1e91"
},
{
"url": "https://git.kernel.org/stable/c/afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635"
},
{
"url": "https://git.kernel.org/stable/c/1416eebaad80bdc85ad9f97f27242011b031e2a9"
},
{
"url": "https://git.kernel.org/stable/c/e28f376dd8dfcc4e880ac101184132bc08703f6e"
},
{
"url": "https://git.kernel.org/stable/c/ea2b62f305893992156a798f665847e0663c9f41"
}
],
"title": "fs/sysv: Null check to prevent null-ptr-deref bug",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-54264",
"datePublished": "2025-12-30T12:15:56.893Z",
"dateReserved": "2025-12-30T12:06:44.517Z",
"dateUpdated": "2026-05-11T19:58:36.713Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
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"date": "2026-10-04",
"epss": "0.00211",
"percentile": "0.10281"
},
"nvd": {
"cve": {
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"product": "Linux",
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"fs/sysv/itree.c"
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},
{
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"product": "Linux",
"programFiles": [
"fs/sysv/itree.c"
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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{
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"versionType": "semver"
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{
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"status": "unaffected",
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"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
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{
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"status": "unaffected",
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},
{
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"status": "unaffected",
"version": "6.4.10",
"versionType": "semver"
},
{
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"version": "6.5",
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}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/sysv: Null check to prevent null-ptr-deref bug\n\nsb_getblk(inode-\u003ei_sb, parent) return a null ptr and taking lock on\nthat leads to the null-ptr-deref bug."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs/sysv: Verificaci\u00f3n de nulos para prevenir el error de desreferencia de puntero nulo\n\nsb_getblk(inode-\u0026gt;i_sb, parent) devuelve un puntero nulo y adquirir un bloqueo sobre eso conduce al error de desreferencia de puntero nulo."
}
],
"id": "CVE-2023-54264",
"lastModified": "2026-06-17T06:47:07.147",
"metrics": {},
"published": "2025-12-30T13:16:15.193",
"references": [
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},
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-30T10:16:11+00:00",
"cve": "CVE-2023-54264",
"id": "CVE-2023-54264",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_affected": "14",
"product_status:known_not_affected": "260",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: fs/sysv: Null check to prevent null-ptr-deref bug",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54264.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-02T00:25:46Z",
"cve": "CVE-2023-54264",
"id": "CVE-2023-54264",
"initial_release_date": "2025-12-31T00:27:12Z",
"product_status:known_affected": "354",
"product_status:known_not_affected": "271",
"product_status:recommended": "431",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-54264",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-54264.json",
"version": "41"
}
}
}
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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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