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ext4: fix an endianness bug in ext4_encrypted_zeroout()

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ex->ee_block is not host-endian (note that accesses of other fields
of *ex right next to that line go through the helpers that do proper
conversion from little-endian to host-endian; it might make sense
to add similar for ->ee_block to avoid reintroducing that kind of
bugs...)

Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Al Viro 2015-11-26 15:20:19 -05:00 committed by Theodore Ts'o
parent bc23f0c8d7
commit e2c9e0b28e
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/crypto.c
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@ -389,7 +389,7 @@ int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex)
struct ext4_crypto_ctx *ctx; struct ext4_crypto_ctx *ctx;
struct page *ciphertext_page = NULL; struct page *ciphertext_page = NULL;
struct bio *bio; struct bio *bio;
ext4_lblk_t lblk = ex->ee_block; ext4_lblk_t lblk = le32_to_cpu(ex->ee_block);
ext4_fsblk_t pblk = ext4_ext_pblock(ex); ext4_fsblk_t pblk = ext4_ext_pblock(ex);
unsigned int len = ext4_ext_get_actual_len(ex); unsigned int len = ext4_ext_get_actual_len(ex);
int ret, err = 0; int ret, err = 0;