Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e2c9e0b2 authored by Al Viro's avatar Al Viro Committed by Theodore Ts'o
Browse files

ext4: fix an endianness bug in ext4_encrypted_zeroout() 



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: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent bc23f0c8

fs/ext4/crypto.c

+1 −1
Original line number Diff line number Diff line
@@ -389,7 +389,7 @@ int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex) 
	struct ext4_crypto_ctx	*ctx;

	struct page		*ciphertext_page = NULL;

	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);

	unsigned int		len = ext4_ext_get_actual_len(ex);

	int			ret, err = 0;