Description

In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target(). Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects.

References 3

• git.kernel.org https://git.kernel.org/stable/c/536ec71ba060a02fabe8e22cecb82fe7b3a8708b
• git.kernel.org https://git.kernel.org/stable/c/553476df55a111e6a66ad9155256aec0ec1b7ad0
• git.kernel.org https://git.kernel.org/stable/c/ee20d7c6100752eaf2409d783f4f1449c29ea33d

Remediation