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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"versionType": "git"
},
{
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{
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"versionType": "git"
},
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"status": "affected",
"version": "1986bba9597b3d97d3e80530dc457a1cd1994e22",
"versionType": "git"
},
{
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"status": "affected",
"version": "9031626ade38b092b72638dfe0c6ffce8d8acd43",
"versionType": "git"
}
]
},
{
"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": "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:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6.112",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.56",
"versionStartIncluding": "6.12.53",
"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"
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}
},
"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": "2026-09-15",
"epss": "0.00186",
"percentile": "0.08373"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-68252\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-16T15:15:54.520\",\"lastModified\":\"2026-06-17T09:58:48.640\",\"vulnStatus\":\"Deferred\",\"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\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/misc/fastrpc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ec5cb80503bbfee67573699fe52fcf456fd57678\",\"lessThan\":\"c2fef5ebb73f3dabae6fbc571d181914ed32c483\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6e0d6cc39f410a4d9ea774fbb254c68fe02ff4bb\",\"lessThan\":\"9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6e0928a8988e873da9946e17f8065ad77c720186\",\"lessThan\":\"e17b13387827adce7acb19ac0f07f9bcafe0ff4c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1986bba9597b3d97d3e80530dc457a1cd1994e22\",\"lessThan\":\"214e81a63a9aa0be42382ef0365ba5ed32c513ab\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9031626ade38b092b72638dfe0c6ffce8d8acd43\",\"lessThan\":\"fff111bf45cbeeb659324316d68554e35d350092\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/misc/fastrpc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.1.156\",\"lessThan\":\"6.1.158\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.112\",\"lessThan\":\"6.6.115\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.12.53\",\"lessThan\":\"6.12.56\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.17.3\",\"lessThan\":\"6.17.6\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
"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"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T01:50:42Z",
"cve": "CVE-2025-68252",
"id": "CVE-2025-68252",
"initial_release_date": "2025-12-17T00:24:21Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "394",
"product_status:known_not_affected": "435",
"product_status:recommended": "384",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-68252",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68252.json",
"version": "31"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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