CVE-2025-37947

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Source
https://cve.org/CVERecord?id=CVE-2025-37947
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37947.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37947
Downstream
Related
Published
2025-05-20T16:01:43.788Z
Modified
2026-03-20T12:42:35.189776Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
ksmbd: prevent out-of-bounds stream writes by validating *pos
Details

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

ksmbd: prevent out-of-bounds stream writes by validating *pos

ksmbdvfsstreamwrite() did not validate whether the write offset (*pos) was within the bounds of the existing stream data length (vlen). If *pos was greater than or equal to v_len, this could lead to an out-of-bounds memory write.

This patch adds a check to ensure *pos is less than v_len before proceeding. If the condition fails, -EINVAL is returned.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37947.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
0626e6641f6b467447c81dd7678a69c66f7746cf
Fixed
7f61da79df86fd140c7768e668ad846bfa7ec8e1
Fixed
04c8a38c60346bb5a7c49b276de7233f703ce9cb
Fixed
d62ba16563a86aae052f96d270b3b6f78fca154c
Fixed
e6356499fd216ed6343ae0363f4c9303f02c5034
Fixed
0ca6df4f40cf4c32487944aaf48319cb6c25accc

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37947.json"