CVE-2025-40035
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: Input: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak Struct ff_effect_compat is embedded twice inside uinput_ff_upload_compat, contains internal padding. In particular, there is a hole after struct ff_replay to satisfy alignment requirements for the following union member. Without clearing the structure, copy_to_user() may leak stack data to userspace. Initialize ff_up_compat to zero before filling valid fields.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-10-28 12:15:37.363000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-40035",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-10-28T12:15:37.363",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: uinput - zero-initialize uinput_ff_upload_compat to avoid info leak\n\nStruct ff_effect_compat is embedded twice inside\nuinput_ff_upload_compat, contains internal padding. In particular, there\nis a hole after struct ff_replay to satisfy alignment requirements for\nthe following union member. Without clearing the structure,\ncopy_to_user() may leak stack data to userspace.\n\nInitialize ff_up_compat to zero before filling valid fields."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nInput: uinput - inicializar a cero uinput_ff_upload_compat para evitar la fuga de información\n\nLa estructura ff_effect_compat está incrustada dos veces dentro de uinput_ff_upload_compat, contiene relleno interno. En particular, hay un hueco después de la estructura ff_replay para satisfacer los requisitos de alineación para el siguiente miembro de la unión. Sin limpiar la estructura, copy_to_user() puede filtrar datos de la pila al espacio de usuario.\n\nInicializar ff_up_compat a cero antes de rellenar los campos válidos."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/input/misc/uinput.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "2d56f3a32c0e62f99c043d2579840f9731fe5855",
"lessThan": "1b317796013f666ae5040edbf0f230ec61496d42",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "877172b97786ed1678640dff0b2d35abb328844c",
"versionType": "git",
"status": "affected"
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{
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"versionType": "git",
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"status": "affected"
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"versionType": "git",
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{
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"versionType": "git",
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{
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},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/input/misc/uinput.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "2.6.29",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.29",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.4.301",
"lessThanOrEqual": "5.4.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.246",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.195",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.156",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.112",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.53",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.17.3",
"lessThanOrEqual": "6.17.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/1b317796013f666ae5040edbf0f230ec61496d42",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/48c96b7e9e03516936d6deba54b5553097eae817",
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},
{
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{
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},
{
"url": "https://git.kernel.org/stable/c/d3366a04770eea807f2826cbdb96934dd8c9bf79",
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},
{
"url": "https://git.kernel.org/stable/c/e63aade22a33e77b93c98c9f02db504d897a76b4",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}