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CVE-2022-47943

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.

POC

Reference

- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2

Github

- https://github.com/helgerod/ksmb-check

- https://github.com/xairy/linux-kernel-exploitation