CVE-2025-39943

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-39943
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39943.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-39943
Downstream
Related
Published
2025-10-04T07:31:05.581Z
Modified
2026-03-09T23:49:31.740912Z
Summary
ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: smbdirect: validate dataoffset and datalength field of smbdirectdata_transfer

If dataoffset and datalength of smbdirectdatatransfer struct are invalid, out of bounds issue could happen. This patch validate dataoffset and datalength field in recvdone.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39943.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2ea086e35c3d726a3bacd0a971c1f02a50e98206
Fixed
773fddf976d282ef059c36c575ddb81567acd6bc
Fixed
bdaab5c6538e250a9654127e688ecbbeb6f771d5
Fixed
eb0378dde086363046ed3d7db7f126fc3f76fd70
Fixed
8be498fcbd5b07272f560b45981d4b9e5a2ad885
Fixed
529b121b00a6ee3c88fb3c01b443b2b81f686d48
Fixed
5282491fc49d5614ac6ddcd012e5743eecb6a67c

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39943.json"