CVE-2021-47307 Information

Description

In the Linux kernel the following vulnerability has been resolved:

cifs: prevent NULL deref in cifs_compose_mount_options()

The optional @ref parameter might contain an NULL node_name so prevent dereferencing it in cifs_compose_mount_options().

Addresses-Coverity: 1476408 (\Explicit null dereferenced)

Reference

https://git.kernel.org/stable/c/f7d1fa65e74263d11f90ddd33b4d4cd905a93759 https://git.kernel.org/stable/c/e58c162789becede894d3e94c0ce6695a2ef5796 https://git.kernel.org/stable/c/ae3d181f4e912f51af7776ea165f199b16fc165d https://git.kernel.org/stable/c/03313d1c3a2f086bb60920607ab79ac8f8578306