CVE-2025-21955 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ksmbd: prevent connection release during oplock break notification

ksmbd_work could be freed when after connection release. Increment r_count of ksmbd_conn to indicate that requests are not finished yet and to not release the connection.

Reference

https://git.kernel.org/stable/c/09aeab68033161cb54f194da93e51a11aee6144b https://git.kernel.org/stable/c/3aa660c059240e0c795217182cf7df32909dd917 https://git.kernel.org/stable/c/a4261bbc33fbf99b99c80aa3a2c5097611802980 https://git.kernel.org/stable/c/f17d1c63a76b0fe8e9c78023a86507a3a6d62cfa