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How can I use ecryptfs on REHL/CentOS 7.4?

ecryptfs is not enabled by default in Centos7 kernel config. When I enable and build the kernel, I can mount a lower ecryptfs directory into an upper directory, but get a kernel panic when doing "ls" on the upper directory.

I could paste the kernel panic but that's not the point: the question is about getting ecryptfs to work on RHEL/CentOS 7.

Notes:

  • I know that Redhat deprecated ecryptfs in RHEL 7, I'm asking if someone knows how to make it work. Or knows an alternative (EnvFS is not supported either)

  • I've built and installed ecryptfs-utils to allow mounting. Mounting works fine with both version 61 and the latest version 111 of ecryptfs-utils. The issue is not with ecryptfs-utils but with the kernel module.

  • If you want to reproduce the issue, here's how I mount the lower directory into the upper directory: sudo mount -t ecryptfs -o ecryptfs_enable_filename_crypto=no,ecryptfs_cipher=aes,ecryptfs_key_bytes=16,ecryptfs_passthrough=no,key=passphrase:passphrase_passwd_file=password-file,no_sig_cache lower/ upper/

Eric
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