CVE-2025-39943 (GCVE-0-2025-39943)
Vulnerability from cvelistv5
Published
2025-10-04 07:31
Modified
2025-10-04 07:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer
If data_offset and data_length of smb_direct_data_transfer struct are
invalid, out of bounds issue could happen.
This patch validate data_offset and data_length field in recv_done.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 Version: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 Version: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 Version: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 Version: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 Version: 2ea086e35c3d726a3bacd0a971c1f02a50e98206 |
||
{
"containers": {
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"programFiles": [
"fs/smb/server/transport_rdma.c"
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"versions": [
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"version": "0",
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{
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"status": "unaffected",
"version": "5.15.194",
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},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.154",
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},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.108",
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},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.49",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.16.*",
"status": "unaffected",
"version": "6.16.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer\n\nIf data_offset and data_length of smb_direct_data_transfer struct are\ninvalid, out of bounds issue could happen.\nThis patch validate data_offset and data_length field in recv_done."
}
],
"providerMetadata": {
"dateUpdated": "2025-10-04T07:37:03.203Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/bdaab5c6538e250a9654127e688ecbbeb6f771d5"
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"url": "https://git.kernel.org/stable/c/eb0378dde086363046ed3d7db7f126fc3f76fd70"
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"url": "https://git.kernel.org/stable/c/8be498fcbd5b07272f560b45981d4b9e5a2ad885"
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{
"url": "https://git.kernel.org/stable/c/529b121b00a6ee3c88fb3c01b443b2b81f686d48"
},
{
"url": "https://git.kernel.org/stable/c/5282491fc49d5614ac6ddcd012e5743eecb6a67c"
}
],
"title": "ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer",
"x_generator": {
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-39943",
"datePublished": "2025-10-04T07:31:05.581Z",
"dateReserved": "2025-04-16T07:20:57.148Z",
"dateUpdated": "2025-10-04T07:37:03.203Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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