CVE-2023-53246

CVE-2023-53246 (Linux kernel, CIFS DFS upcall) : When CONFIG_CIFS_DFS_UPCALL is disabled, cifs_dfs_d_automount becomes NULL and the CIFS DFS referral handling can trigger a NULL pointer dereference in VFS follow_automount() while traversing a DFS referral. The fix adds an inline cifs_dfs_d_automo...