diff options
| author | Theodore Ts'o <tytso@google.com> | 2015-05-28 21:39:34 -0400 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-05-27 19:40:05 +0200 |
| commit | f486b03542e384e2a5c08f4b65df6e3bda68a82f (patch) | |
| tree | 248018032dcbd16046734a7a8ce990e0f17404ae /fs/ext4/ext4.h | |
| parent | 80a69d52ea3adc7a30e17decb7339448c25d9970 (diff) | |
ext4 crypto: allocate the right amount of memory for the on-disk symlink
Previously we were taking the required padding when allocating space
for the on-disk symlink. This caused a buffer overrun which could
trigger a krenel crash when running fsstress.
Change-Id: I4e05ff207748192036de58bc5af91ae4c357b5b4
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Theodore Ts'o <tytso@google.com>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index ae3aadc85..65802e28a 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2088,6 +2088,7 @@ static inline int ext4_sb_has_crypto(struct super_block *sb) /* crypto_fname.c */ bool ext4_valid_filenames_enc_mode(uint32_t mode); u32 ext4_fname_crypto_round_up(u32 size, u32 blksize); +unsigned ext4_fname_encrypted_size(struct inode *inode, u32 ilen); int ext4_fname_crypto_alloc_buffer(struct inode *inode, u32 ilen, struct ext4_str *crypto_str); int _ext4_fname_disk_to_usr(struct inode *inode, |