CVE-2025-68252 (GCVE-0-2025-68252)
Vulnerability from cvelistv5 – Published: 2025-12-16 14:32 – Updated: 2026-05-11 21:49
VLAI
EPSS
VEX
Title
misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup
Summary
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup
In fastrpc_map_lookup, dma_buf_get is called to obtain a reference to
the dma_buf for comparison purposes. However, this reference is never
released when the function returns, leading to a dma_buf memory leak.
Fix this by adding dma_buf_put before returning from the function,
ensuring that the temporarily acquired reference is properly released
regardless of whether a matching map is found.
Rule: add
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ec5cb80503bbfee67573699fe52fcf456fd57678 , < c2fef5ebb73f3dabae6fbc571d181914ed32c483
(git)
Affected: 6e0d6cc39f410a4d9ea774fbb254c68fe02ff4bb , < 9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3 (git) Affected: 6e0928a8988e873da9946e17f8065ad77c720186 , < e17b13387827adce7acb19ac0f07f9bcafe0ff4c (git) Affected: 1986bba9597b3d97d3e80530dc457a1cd1994e22 , < 214e81a63a9aa0be42382ef0365ba5ed32c513ab (git) Affected: 9031626ade38b092b72638dfe0c6ffce8d8acd43 , < fff111bf45cbeeb659324316d68554e35d350092 (git) |
guessed | |
| Linux | Linux |
Affected:
6.1.156 , < 6.1.158
(semver)
Affected: 6.6.112 , < 6.6.115 (semver) Affected: 6.12.53 , < 6.12.56 (semver) Affected: 6.17.3 , < 6.17.6 (semver) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/misc/fastrpc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"version": "1986bba9597b3d97d3e80530dc457a1cd1994e22",
"versionType": "git"
},
{
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"status": "affected",
"version": "9031626ade38b092b72638dfe0c6ffce8d8acd43",
"versionType": "git"
}
]
},
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"product": "Linux",
"programFiles": [
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"vendor": "Linux",
"versions": [
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"lessThan": "6.1.158",
"status": "affected",
"version": "6.1.156",
"versionType": "semver"
},
{
"lessThan": "6.6.115",
"status": "affected",
"version": "6.6.112",
"versionType": "semver"
},
{
"lessThan": "6.12.56",
"status": "affected",
"version": "6.12.53",
"versionType": "semver"
},
{
"lessThan": "6.17.6",
"status": "affected",
"version": "6.17.3",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"versionStartIncluding": "6.1.156",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.115",
"versionStartIncluding": "6.6.112",
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},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17.6",
"versionStartIncluding": "6.17.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup\n\nIn fastrpc_map_lookup, dma_buf_get is called to obtain a reference to\nthe dma_buf for comparison purposes. However, this reference is never\nreleased when the function returns, leading to a dma_buf memory leak.\n\nFix this by adding dma_buf_put before returning from the function,\nensuring that the temporarily acquired reference is properly released\nregardless of whether a matching map is found.\n\nRule: add"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:49:46.501Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/c2fef5ebb73f3dabae6fbc571d181914ed32c483"
},
{
"url": "https://git.kernel.org/stable/c/9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3"
},
{
"url": "https://git.kernel.org/stable/c/e17b13387827adce7acb19ac0f07f9bcafe0ff4c"
},
{
"url": "https://git.kernel.org/stable/c/214e81a63a9aa0be42382ef0365ba5ed32c513ab"
},
{
"url": "https://git.kernel.org/stable/c/fff111bf45cbeeb659324316d68554e35d350092"
}
],
"title": "misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68252",
"datePublished": "2025-12-16T14:32:18.819Z",
"dateReserved": "2025-12-16T13:41:40.266Z",
"dateUpdated": "2026-05-11T21:49:46.501Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-68252",
"date": "2026-11-04",
"epss": "0.00186",
"percentile": "0.08271"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/misc/fastrpc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "c2fef5ebb73f3dabae6fbc571d181914ed32c483",
"status": "affected",
"version": "ec5cb80503bbfee67573699fe52fcf456fd57678",
"versionType": "git"
},
{
"lessThan": "9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3",
"status": "affected",
"version": "6e0d6cc39f410a4d9ea774fbb254c68fe02ff4bb",
"versionType": "git"
},
{
"lessThan": "e17b13387827adce7acb19ac0f07f9bcafe0ff4c",
"status": "affected",
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"versionType": "git"
},
{
"lessThan": "214e81a63a9aa0be42382ef0365ba5ed32c513ab",
"status": "affected",
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"versionType": "git"
},
{
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},
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"product": "Linux",
"programFiles": [
"drivers/misc/fastrpc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6.1.158",
"status": "affected",
"version": "6.1.156",
"versionType": "semver"
},
{
"lessThan": "6.6.115",
"status": "affected",
"version": "6.6.112",
"versionType": "semver"
},
{
"lessThan": "6.12.56",
"status": "affected",
"version": "6.12.53",
"versionType": "semver"
},
{
"lessThan": "6.17.6",
"status": "affected",
"version": "6.17.3",
"versionType": "semver"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup\n\nIn fastrpc_map_lookup, dma_buf_get is called to obtain a reference to\nthe dma_buf for comparison purposes. However, this reference is never\nreleased when the function returns, leading to a dma_buf memory leak.\n\nFix this by adding dma_buf_put before returning from the function,\nensuring that the temporarily acquired reference is properly released\nregardless of whether a matching map is found.\n\nRule: add"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmisc: fastrpc: Correcci\u00f3n de fuga de objeto dma_buf en fastrpc_map_lookup\n\nEn fastrpc_map_lookup, se llama a dma_buf_get para obtener una referencia al dma_buf con fines de comparaci\u00f3n. Sin embargo, esta referencia nunca se libera cuando la funci\u00f3n retorna, lo que provoca una fuga de memoria de dma_buf.\n\nEsto se corrige a\u00f1adiendo dma_buf_put antes de retornar de la funci\u00f3n, asegurando que la referencia adquirida temporalmente se libere correctamente independientemente de si se encuentra un mapa coincidente."
}
],
"id": "CVE-2025-68252",
"lastModified": "2026-10-14T13:10:00.187",
"metrics": {},
"published": "2025-12-16T15:15:54.520",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/214e81a63a9aa0be42382ef0365ba5ed32c513ab"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c2fef5ebb73f3dabae6fbc571d181914ed32c483"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e17b13387827adce7acb19ac0f07f9bcafe0ff4c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/fff111bf45cbeeb659324316d68554e35d350092"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:37:14+00:00",
"cve": "CVE-2025-68252",
"id": "CVE-2025-68252",
"initial_release_date": "2025-12-16T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68252.json",
"version": "3"
}
}
}
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