FKIE_CVE-2024-57940
Vulnerability from fkie_nvd - Published: 2025-01-21 13:15 - Updated: 2026-10-15 02:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
exfat: fix the infinite loop in exfat_readdir()
If the file system is corrupted so that a cluster is linked to
itself in the cluster chain, and there is an unused directory
entry in the cluster, 'dentry' will not be incremented, causing
condition 'dentry < max_dentries' unable to prevent an infinite
loop.
This infinite loop causes s_lock not to be released, and other
tasks will hang, such as exfat_sync_fs().
This commit stops traversing the cluster chain when there is unused
directory entry in the cluster to avoid this infinite loop.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.13 | |
| linux | linux_kernel | 6.13 | |
| linux | linux_kernel | 6.13 | |
| linux | linux_kernel | 6.13 | |
| linux | linux_kernel | 6.13 | |
| linux | linux_kernel | 6.13 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/exfat/dir.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d8cfbb8723bd3d3222f360227a1cc15227189ca6",
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"versionType": "git"
},
{
"lessThan": "28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17",
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"versionType": "git"
},
{
"lessThan": "31beabd0f47f8c3ed9965ba861c9e5b252d4920a",
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"versionType": "git"
},
{
"lessThan": "dc1d7afceb982e8f666e70a582e6b5aa806de063",
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"versionType": "git"
},
{
"lessThan": "d9ea94f5cd117d56e573696d0045ab3044185a15",
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"versionType": "git"
},
{
"lessThan": "fee873761bd978d077d8c55334b4966ac4cb7b59",
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/exfat/dir.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"lessThan": "5.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.234",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.177",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.125",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.72",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.13",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - BIOS",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V1.1.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"matchCriteriaId": "AFBACF73-7025-451B-BBBE-2B3936BFE76B",
"versionEndExcluding": "6.1.125",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*",
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{
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix the infinite loop in exfat_readdir()\n\nIf the file system is corrupted so that a cluster is linked to\nitself in the cluster chain, and there is an unused directory\nentry in the cluster, \u0027dentry\u0027 will not be incremented, causing\ncondition \u0027dentry \u003c max_dentries\u0027 unable to prevent an infinite\nloop.\n\nThis infinite loop causes s_lock not to be released, and other\ntasks will hang, such as exfat_sync_fs().\n\nThis commit stops traversing the cluster chain when there is unused\ndirectory entry in the cluster to avoid this infinite loop."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: exfat: se corrige el bucle infinito en exfat_readdir() Si el sistema de archivos est\u00e1 da\u00f1ado de modo que un cl\u00faster est\u00e1 vinculado a s\u00ed mismo en la cadena de cl\u00fasteres y hay una entrada de directorio sin usar en el cl\u00faster, \u0027dentry\u0027 no se incrementar\u00e1, lo que provocar\u00e1 que la condici\u00f3n \u0027dentry \u0026lt; max_dentries\u0027 no pueda evitar un bucle infinito. Este bucle infinito hace que s_lock no se libere y otras tareas se cuelguen, como exfat_sync_fs(). Esta confirmaci\u00f3n deja de recorrer la cadena de cl\u00fasteres cuando hay una entrada de directorio sin usar en el cl\u00faster para evitar este bucle infinito."
}
],
"id": "CVE-2024-57940",
"lastModified": "2026-10-15T02:17:13.330",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-01-21T13:15:08.540",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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"url": "https://git.kernel.org/stable/c/31beabd0f47f8c3ed9965ba861c9e5b252d4920a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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{
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"tags": [
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"url": "https://git.kernel.org/stable/c/fee873761bd978d077d8c55334b4966ac4cb7b59"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-503939.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-835"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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|---|
Nomenclature
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