CVE-2025-37947
- 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
- Published
- 2025-05-20T16:01:43.788Z
- Modified
- 2026-05-07T04:17:20.793241Z
- 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
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37947.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/04c8a38c60346bb5a7c49b276de7233f703ce9cb
- https://git.kernel.org/stable/c/0ca6df4f40cf4c32487944aaf48319cb6c25accc
- https://git.kernel.org/stable/c/7f61da79df86fd140c7768e668ad846bfa7ec8e1
- https://git.kernel.org/stable/c/d62ba16563a86aae052f96d270b3b6f78fca154c
- https://git.kernel.org/stable/c/e6356499fd216ed6343ae0363f4c9303f02c5034
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37947.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-37947
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://github.com/doyensec/KSMBD-CVE-2025-37947/blob/main/CVE-2025-37947.c
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
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixed7f61da79df86fd140c7768e668ad846bfa7ec8e1Fixed04c8a38c60346bb5a7c49b276de7233f703ce9cbFixedd62ba16563a86aae052f96d270b3b6f78fca154cFixede6356499fd216ed6343ae0363f4c9303f02c5034Fixed0ca6df4f40cf4c32487944aaf48319cb6c25accc