Backport four commits from v5.11-rc1. I resolved a conflict in the first one. The rest are clean cherry-picks which didn't get picked up yet because they depend on the first one. Eric Biggers (4): fscrypt: add fscrypt_is_nokey_name() ext4: prevent creating duplicate encrypted filenames f2fs: prevent creating duplicate encrypted filenames ubifs: prevent creating duplicate encrypted filenames fs/crypto/hooks.c | 10 +++++----- fs/ext4/namei.c | 3 +++ fs/f2fs/f2fs.h | 2 ++ fs/ubifs/dir.c | 17 +++++++++++++---- include/linux/fscrypt.h | 34 ++++++++++++++++++++++++++++++++++ 5 files changed, 57 insertions(+), 9 deletions(-) -- 2.29.2