CVE-2025-68814
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix filename leak in __io_openat_prep()
__io_openat_prep() allocates a struct filename using getname(). However, for the condition of the file being installed in the fixed file table as well as having O_CLOEXEC flag set, the function returns early. At that point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this, the memory for the newly allocated struct filename is not cleaned up, causing a memory leak.
Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the successful getname() call, so that when the request is torn down, the filename will be cleaned up, along with other resources needing cleanup.
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: 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)
⚠ 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/18b99fa603d0df5e1c898699c17d3b92ddc80746
- https://git.kernel.org/stable/c/2420ef01b2e836fbc05a0a8c73a1016504eb0458
- https://git.kernel.org/stable/c/7fbfb85b05bc960cc50e09d03e5e562131e48d45
- https://git.kernel.org/stable/c/8f44c4a550570cd5903625133f938c6b51310c9b
- https://git.kernel.org/stable/c/b14fad555302a2104948feaff70503b64c80ac01
- https://git.kernel.org/stable/c/e232269d511566b1f80872256a48593acc1becf4
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-68814",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
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"vendor": "Linux",
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"version": "b9445598d8c60a1379887b957024b71343965f74",
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"versionType": "git"
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{
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"versionType": "git"
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{
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"versionType": "git"
},
{
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{
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{
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],
"programFiles": [
"io_uring/openclose.c"
],
"defaultStatus": "unaffected"
},
{
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"vendor": "Linux",
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{
"status": "affected",
"version": "5.15"
},
{
"status": "unaffected",
"version": "0",
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"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.198",
"versionType": "semver",
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},
{
"status": "unaffected",
"version": "6.1.160",
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},
{
"status": "unaffected",
"version": "6.6.120",
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},
{
"status": "unaffected",
"version": "6.12.64",
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},
{
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"version": "6.18.3",
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},
{
"status": "unaffected",
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"versionType": "original_commit_for_fix",
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}
],
"programFiles": [
"io_uring/openclose.c"
],
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}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"versions": [
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"version": "V3.1.6",
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],
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{
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],
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},
{
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"versions": [
{
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],
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},
{
"vendor": "Siemens",
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{
"vendor": "Siemens",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
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}
],
"defaultStatus": "unknown"
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]
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],
"published": "2026-01-13T16:16:03.643",
"references": [
{
"url": "https://git.kernel.org/stable/c/18b99fa603d0df5e1c898699c17d3b92ddc80746",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2420ef01b2e836fbc05a0a8c73a1016504eb0458",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7fbfb85b05bc960cc50e09d03e5e562131e48d45",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8f44c4a550570cd5903625133f938c6b51310c9b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b14fad555302a2104948feaff70503b64c80ac01",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e232269d511566b1f80872256a48593acc1becf4",
"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\nio_uring: fix filename leak in __io_openat_prep()\n\n __io_openat_prep() allocates a struct filename using getname(). However,\nfor the condition of the file being installed in the fixed file table as\nwell as having O_CLOEXEC flag set, the function returns early. At that\npoint, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this,\nthe memory for the newly allocated struct filename is not cleaned up,\ncausing a memory leak.\n\nFix this by setting the REQ_F_NEED_CLEANUP for the request just after the\nsuccessful getname() call, so that when the request is torn down, the\nfilename will be cleaned up, along with other resources needing cleanup."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nio_uring: corregir fuga de filename en __io_openat_prep()\n\n__io_openat_prep() asigna una estructura filename usando getname(). Sin embargo, para la condición de que el archivo esté instalado en la tabla de archivos fija, así como de tener la bandera O_CLOEXEC establecida, la función retorna prematuramente. En ese punto, la solicitud no tiene la bandera REQ_F_NEED_CLEANUP establecida. Debido a esto, la memoria para la estructura filename recién asignada no se limpia, causando una fuga de memoria.\n\nSolucione esto estableciendo la bandera REQ_F_NEED_CLEANUP para la solicitud justo después de la llamada exitosa a getname(), de modo que cuando la solicitud sea desmantelada, el filename será limpiado, junto con otros recursos que necesiten limpieza."
}
],
"lastModified": "2026-07-14T13:18:00.810",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}