FKIE_CVE-2023-54311
Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-06-17 06:47
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix deadlock when converting an inline directory in nojournal mode
In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock
by calling ext4_handle_dirty_dirblock() when it already has taken the
directory lock. There is a similar self-deadlock in
ext4_incvert_inline_data_nolock() for data files which we'll fix at
the same time.
A simple reproducer demonstrating the problem:
mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64
mount -t ext4 -o dirsync /dev/vdc /vdc
cd /vdc
mkdir file0
cd file0
touch file0
touch file1
attr -s BurnSpaceInEA -V abcde .
touch supercalifragilisticexpialidocious
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/ext4/inline.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b4fa4768c9acff77245d672d855d2c88294850b1",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
},
{
"lessThan": "5f8b55136ad787aed2c184f7cb3e93772ae637a3",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
},
{
"lessThan": "640c8c365999c6f23447ac766437236ad88317c5",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
},
{
"lessThan": "665cc3ba50330049524c1d275bc840a8f28dde73",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
},
{
"lessThan": "0b1c4357bb21d9770451a1bdb8d419ea10bada88",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
},
{
"lessThan": "804de0c72cd473e186ca4e1f6287d45431b14e5a",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
},
{
"lessThan": "f4ce24f54d9cca4f09a395f3eecce20d6bec4663",
"status": "affected",
"version": "3c47d54170b6a678875566b1b8d6dcf57904e49b",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/ext4/inline.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.8"
},
{
"lessThan": "3.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.243",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.180",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.112",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.29",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.*",
"status": "unaffected",
"version": "6.2.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.3.*",
"status": "unaffected",
"version": "6.3.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.4",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix deadlock when converting an inline directory in nojournal mode\n\nIn no journal mode, ext4_finish_convert_inline_dir() can self-deadlock\nby calling ext4_handle_dirty_dirblock() when it already has taken the\ndirectory lock. There is a similar self-deadlock in\next4_incvert_inline_data_nolock() for data files which we\u0027ll fix at\nthe same time.\n\nA simple reproducer demonstrating the problem:\n\n mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64\n mount -t ext4 -o dirsync /dev/vdc /vdc\n cd /vdc\n mkdir file0\n cd file0\n touch file0\n touch file1\n attr -s BurnSpaceInEA -V abcde .\n touch supercalifragilisticexpialidocious"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\next4: corregir interbloqueo al convertir un directorio en l\u00ednea en modo sin diario\n\nEn modo sin diario, ext4_finish_convert_inline_dir() puede auto-interbloquearse al llamar a ext4_handle_dirty_dirblock() cuando ya ha tomado el bloqueo del directorio. Existe un auto-interbloqueo similar en ext4_incvert_inline_data_nolock() para archivos de datos, el cual solucionaremos al mismo tiempo.\n\nUn reproductor simple que demuestra el problema:\n\n mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64\n mount -t ext4 -o dirsync /dev/vdc /vdc\n cd /vdc\n mkdir file0\n cd file0\n touch file0\n touch file1\n attr -s BurnSpaceInEA -V abcde .\n touch supercalifragilisticexpialidocious"
}
],
"id": "CVE-2023-54311",
"lastModified": "2026-06-17T06:47:12.273",
"metrics": {},
"published": "2025-12-30T13:16:20.317",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0b1c4357bb21d9770451a1bdb8d419ea10bada88"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5f8b55136ad787aed2c184f7cb3e93772ae637a3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/640c8c365999c6f23447ac766437236ad88317c5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/665cc3ba50330049524c1d275bc840a8f28dde73"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/804de0c72cd473e186ca4e1f6287d45431b14e5a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b4fa4768c9acff77245d672d855d2c88294850b1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f4ce24f54d9cca4f09a395f3eecce20d6bec4663"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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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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