Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix overflow in dacloffset bounds check The dacloffset field was originally typed as int and used in an unchecked addition, which could overflow and bypass the existing bounds check in both smb_check_perm_dacl() and smb_inherit_dacl(). This could result in out-of-bounds memory access and a kernel crash when dereferencing the DACL pointer. This patch converts dacloffset to unsigned int and uses check_add_overflow() to validate access to the DACL.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 6.12.23 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/443b373a4df5a2cb9f7b8c4658b2afedeb16397fPatch
- https://git.kernel.org/stable/c/6a9cd9ff0fa2bcc30b2bfb8bdb161eb20e44b9dcPatch
- https://git.kernel.org/stable/c/6b8d379048b168a0dff5ab1acb975b933f368514Patch
- https://git.kernel.org/stable/c/beff0bc9d69bc8e733f9bca28e2d3df5b3e10e42Patch
FAQ
What is CVE-2025-22039?
CVE-2025-22039 is a vulnerability with a CVSS score of 7.1 (HIGH). In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix overflow in dacloffset bounds check The dacloffset field was originally typed as int and used in an unchecked addition,...
How severe is CVE-2025-22039?
CVE-2025-22039 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-22039?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.