CVEvulnerability
CVE-2025-68806
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-01-13
- Last modified
- 2026-07-30
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix buffer validation by including null terminator size in EA length
The smb2_set_ea function, which handles Extended Attributes (EA),
was performing buffer validation checks that incorrectly omitted the size
of the null terminating character (+1 byte) for EA Name.
This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where
the null terminator is expected to be present in the buffer, ensuring
the validation accurately reflects the total required buffer size.
References
- https://git.kernel.org/stable/c/6dc8cf6e7998ef7aeb9383a4c2904ea5d22fa2e4 git.kernel.org
- https://git.kernel.org/stable/c/95d7a890e4b03e198836d49d699408fd1867cb55 git.kernel.org
- https://git.kernel.org/stable/c/a28a375a5439eb474e9f284509a407efb479c925 git.kernel.org
- https://git.kernel.org/stable/c/cae52c592a07e1d3fa3338a5f064a374a5f26750 git.kernel.org
- https://git.kernel.org/stable/c/d26af6d14da43ab92d07bc60437c62901dc522e6 git.kernel.org