From 8a744287bd6b9cccd25423112ea7322bb47c4c01 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 26 Nov 2015 15:20:19 -0500 Subject: [PATCH] ext4: fix an endianness bug in ext4_encrypted_zeroout() commit e2c9e0b28e146c9a3bce21408f3c02e24ac7ac31 upstream. 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...) Signed-off-by: Al Viro Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c index 2fab243a4c9e..7d6cda4738a4 100644 --- a/fs/ext4/crypto.c +++ b/fs/ext4/crypto.c @@ -408,7 +408,7 @@ 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; -- 2.43.0