CVE-2023-53672
In the Linux kernel, the following vulnerability has been resolved:
btrfs: output extra debug info if we failed to find an inline backref
[BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref().
[CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist)
[ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.14%
- Percentil entre todas las CVEs puntuadas: 3
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
- https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
- https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
- https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
- https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
- https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
- https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
- https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-53672",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "376b41524b71e494514720bd6114325b0a2ed19c",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "400e08a16604b534fdd82c5a288fa150d04f5f79",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "7afbfde45d665953b4d5a42a721e15bf0315d89b",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "b7c3cf2f6c42e6688b1c37215a0b1663f982f915",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "6994f806c6d1ae8b59344d3700358547f3b3fe1d",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "28062cd6eda04035d8f6ded2001292ac8b496149",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "e70ba449b04b40584bdabb383d10455397cbf177",
"versionType": "git"
},
{
"status": "affected",
"version": "492104c866cb1b62a11393adccb477f5cd2c7768",
"lessThan": "7f72f50547b7af4ddf985b07fc56600a4deba281",
"versionType": "git"
}
],
"programFiles": [
"fs/btrfs/extent-tree.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.14.326",
"versionType": "semver",
"lessThanOrEqual": "4.14.*"
},
{
"status": "unaffected",
"version": "4.19.295",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.257",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.197",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.133",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.55",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.5.5",
"versionType": "semver",
"lessThanOrEqual": "6.5.*"
},
{
"status": "unaffected",
"version": "6.6",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/btrfs/extent-tree.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-10-07T16:15:51.123",
"references": [
{
"url": "https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: output extra debug info if we failed to find an inline backref\n\n[BUG]\nSyzbot reported several warning triggered inside\nlookup_inline_extent_backref().\n\n[CAUSE]\nAs usual, the reproducer doesn't reliably trigger locally here, but at\nleast we know the WARN_ON() is triggered when an inline backref can not\nbe found, and it can only be triggered when @insert is true. (I.e.\ninserting a new inline backref, which means the backref should already\nexist)\n\n[ENHANCEMENT]\nAfter the WARN_ON(), dump all the parameters and the extent tree\nleaf to help debug."
}
],
"lastModified": "2026-06-17T06:45:50.530",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "55A7CDF1-F424-4508-BC44-0AAB20436EE7",
"versionEndExcluding": "4.14.326",
"versionStartIncluding": "3.9.1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D419C7D6-F33D-4EF8-8950-1CB5DDF6A55D",
"versionEndExcluding": "4.19.295",
"versionStartIncluding": "4.15"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "834BD148-28EC-43A4-A4F5-458124A1E39F",
"versionEndExcluding": "5.4.257",
"versionStartIncluding": "4.20"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FD17EA9A-DF74-4876-AADC-C204F0716961",
"versionEndExcluding": "5.10.197",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "21236FF3-9B2C-4C1A-8780-BC5BCA44AA51",
"versionEndExcluding": "5.15.133",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0EFCF8E8-5528-46B9-8C17-B09792899CE0",
"versionEndExcluding": "6.1.55",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8CF71E85-DA24-4925-95C5-E5C15DA71AE6",
"versionEndExcluding": "6.5.5",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "526A1838-B777-4270-82B2-E8BC398CB046"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5B039196-7159-476C-876A-C61242CC41DA"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3A9E0457-53C9-44DD-ACFB-31EE1D1E060E"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BEE406E7-87BA-44BA-BF61-673E6CC44A2F"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "29FBA173-658F-45DC-8205-934CACD67166"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "139700F0-BA32-40CF-B9DF-C9C450384FDE"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:3.9:rc8:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7FC798CC-23F1-42C3-BA27-187C90B4E43C"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}