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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-23 16:52:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-23 16:52:19 -0700 |
| commit | c761923cb80700cf8d907377e374d21b08c0ff77 (patch) | |
| tree | f4361977e125c3a47cdf801596cab6d37aa2959f /fs/crypto/crypto.c | |
| parent | a55da8a0ddac4ebe0d7b3a1e5902cb1d286f8062 (diff) | |
| parent | d74f3d25289aa9722cf777a7482eeee2eacdf46e (diff) | |
| download | linux-c761923cb80700cf8d907377e374d21b08c0ff77.tar.gz linux-c761923cb80700cf8d907377e374d21b08c0ff77.tar.bz2 linux-c761923cb80700cf8d907377e374d21b08c0ff77.zip | |
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A few bug fixes and add some missing KERN_CONT annotations"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: add missing KERN_CONT to a few more debugging uses
fscrypto: lock inode while setting encryption policy
ext4: correct endianness conversion in __xattr_check_inode()
fscrypto: make XTS tweak initialization endian-independent
ext4: do not advertise encryption support when disabled
jbd2: fix incorrect unlock on j_list_lock
ext4: super.c: Update logging style using KERN_CONT
Diffstat (limited to 'fs/crypto/crypto.c')
| -rw-r--r-- | fs/crypto/crypto.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index 61057b7dbddb..98f87fe8f186 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -151,7 +151,10 @@ static int do_page_crypto(struct inode *inode, struct page *src_page, struct page *dest_page, gfp_t gfp_flags) { - u8 xts_tweak[FS_XTS_TWEAK_SIZE]; + struct { + __le64 index; + u8 padding[FS_XTS_TWEAK_SIZE - sizeof(__le64)]; + } xts_tweak; struct skcipher_request *req = NULL; DECLARE_FS_COMPLETION_RESULT(ecr); struct scatterlist dst, src; @@ -171,17 +174,15 @@ static int do_page_crypto(struct inode *inode, req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, page_crypt_complete, &ecr); - BUILD_BUG_ON(FS_XTS_TWEAK_SIZE < sizeof(index)); - memcpy(xts_tweak, &index, sizeof(index)); - memset(&xts_tweak[sizeof(index)], 0, - FS_XTS_TWEAK_SIZE - sizeof(index)); + BUILD_BUG_ON(sizeof(xts_tweak) != FS_XTS_TWEAK_SIZE); + xts_tweak.index = cpu_to_le64(index); + memset(xts_tweak.padding, 0, sizeof(xts_tweak.padding)); sg_init_table(&dst, 1); sg_set_page(&dst, dest_page, PAGE_SIZE, 0); sg_init_table(&src, 1); sg_set_page(&src, src_page, PAGE_SIZE, 0); - skcipher_request_set_crypt(req, &src, &dst, PAGE_SIZE, - xts_tweak); + skcipher_request_set_crypt(req, &src, &dst, PAGE_SIZE, &xts_tweak); if (rw == FS_DECRYPT) res = crypto_skcipher_decrypt(req); else |