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 5

• git.kernel.org 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

Remediation