CVE-2025-68820
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
ext4: xattr: fix null pointer deref in ext4_raw_inode()
If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED), iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all() lacks error checking, this will lead to a null pointer dereference in ext4_raw_inode(), called right after ext4_get_inode_loc().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.21%
- Percentil entre todas las CVEs puntuadas: 10
- Fecha de la puntuación: 5/10/2026
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f
- https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3
- https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2
- https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec
- https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6
- https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14
- https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-68820",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-68820",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-06-16T16:55:32.991979Z"
}
}
]
},
"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": "76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3",
"lessThan": "b72a3476f0c97d02f63a6e9fff127348d55436f6",
"versionType": "git"
},
{
"status": "affected",
"version": "f737418b6de31c962c7192777ee4018906975383",
"lessThan": "3d8d22e75f7edfa0b30ff27330fd6a1285d594c3",
"versionType": "git"
},
{
"status": "affected",
"version": "cf9291a3449b04688b81e32621e88de8f4314b54",
"lessThan": "190ad0f22ba49f1101182b80e3af50ca2ddfe72f",
"versionType": "git"
},
{
"status": "affected",
"version": "362a90cecd36e8a5c415966d0b75b04a0270e4dd",
"lessThan": "b5d942922182e82724b7152cb998f540132885ec",
"versionType": "git"
},
{
"status": "affected",
"version": "eb59cc31b6ea076021d14b04e7faab1636b87d0e",
"lessThan": "5b154e901fda2e98570b8f426a481f5740097dc2",
"versionType": "git"
},
{
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"lessThan": "ce5f54c065a4a7cbb92787f4f140917112350142",
"versionType": "git"
},
{
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"lessThan": "b97cb7d6a051aa6ebd57906df0e26e9e36c26d14",
"versionType": "git"
},
{
"status": "affected",
"version": "6aff941cb0f7d0c897c3698ad2e30672709135e3",
"versionType": "git"
},
{
"status": "affected",
"version": "3bc6317033f365ce578eb6039445fb66162722fd",
"versionType": "git"
},
{
"status": "affected",
"version": "836e625b03a666cf93ff5be328c8cb30336db872",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.237",
"lessThan": "5.10.248",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.181",
"lessThan": "5.15.198",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.135",
"lessThan": "6.1.160",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.6.88",
"lessThan": "6.6.120",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.12.24",
"lessThan": "6.12.64",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.293",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.13.12",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.14.3",
"lessThan": "6.15",
"versionType": "semver"
}
],
"programFiles": [
"fs/ext4/xattr.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.248",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.198",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.160",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.120",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.64",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.3",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/ext4/xattr.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2026-01-13T16:16:04.327",
"references": [
{
"url": "https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: xattr: fix null pointer deref in ext4_raw_inode()\n\nIf ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),\niloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()\nlacks error checking, this will lead to a null pointer dereference\nin ext4_raw_inode(), called right after ext4_get_inode_loc().\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\next4: xattr: corregir desreferencia de puntero nulo en ext4_raw_inode()\n\nSi ext4_get_inode_loc() falla (p. ej., si devuelve -EFSCORRUPTED), iloc.bh permanecerá establecido en NULL. Dado que ext4_xattr_inode_dec_ref_all() carece de comprobación de errores, esto conducirá a una desreferencia de puntero nulo en ext4_raw_inode(), llamada justo después de ext4_get_inode_loc().\n\nEncontrado por Linux Verification Center (linuxtesting.org) con SVACE."
}
],
"lastModified": "2026-07-14T13:18:01.283",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}