| Message ID | 20201031220553.1085782-1-ebiggers@kernel.org |
|---|---|
| Headers | show |
| Series | backport some more fscrypt fixes to 4.19 | expand |
On Sat, Oct 31, 2020 at 03:05:48PM -0700, Eric Biggers wrote: > Backport some fscrypt fixes from upstream 5.2 to 4.19-stable. > > This is needed to get 'kvm-xfstests -c ext4,f2fs,ubifs -g encrypt' to > fully pass on 4.19-stable. Before, generic/397 and generic/429 failed > on UBIFS due to missing "fscrypt: fix race where ->lookup() marks > plaintext dentry as ciphertext". > > This also fixes some bugs that aren't yet covered by the xfstests. > E.g., "fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing > directory" fixes a bug that caused real-world problems on Chrome OS. > > Some relatively straightforward adjustments were needed to the patches, > mainly due to the refactoring of fscrypt.h that was done in 5.1. All now queued up, thanks! greg k-h
Backport some fscrypt fixes from upstream 5.2 to 4.19-stable. This is needed to get 'kvm-xfstests -c ext4,f2fs,ubifs -g encrypt' to fully pass on 4.19-stable. Before, generic/397 and generic/429 failed on UBIFS due to missing "fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext". This also fixes some bugs that aren't yet covered by the xfstests. E.g., "fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory" fixes a bug that caused real-world problems on Chrome OS. Some relatively straightforward adjustments were needed to the patches, mainly due to the refactoring of fscrypt.h that was done in 5.1. Eric Biggers (5): fscrypt: clean up and improve dentry revalidation fscrypt: fix race allowing rename() and link() of ciphertext dentries fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory fscrypt: only set dentry_operations on ciphertext dentries fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext fs/crypto/crypto.c | 58 +++++++++++++------------ fs/crypto/fname.c | 1 + fs/crypto/hooks.c | 28 ++++++++---- fs/dcache.c | 15 +++++++ fs/ext4/ext4.h | 62 ++++++++++++++++++++------- fs/ext4/namei.c | 76 ++++++++++++++++++++++----------- fs/f2fs/namei.c | 17 +++++--- fs/ubifs/dir.c | 8 ++-- include/linux/dcache.h | 2 +- include/linux/fscrypt.h | 30 +++++++------ include/linux/fscrypt_notsupp.h | 9 ++-- include/linux/fscrypt_supp.h | 6 ++- 12 files changed, 205 insertions(+), 107 deletions(-)