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| author | Eric Sandeen <sandeen@redhat.com> | 2007-12-22 14:03:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-23 12:54:36 -0800 |
| commit | b88629060b03adc58639f818fe0968bf5fe81b5d (patch) | |
| tree | 5ee2455acde11f0f229de31a73a4475df3445e82 /fs/ecryptfs | |
| parent | ed367fc3a7349b17354c7acef551533337764859 (diff) | |
| download | linux-stable-b88629060b03adc58639f818fe0968bf5fe81b5d.tar.gz linux-stable-b88629060b03adc58639f818fe0968bf5fe81b5d.tar.bz2 linux-stable-b88629060b03adc58639f818fe0968bf5fe81b5d.zip | |
ecryptfs: fix string overflow on long cipher names
Passing a cipher name > 32 chars on mount results in an overflow when the
cipher name is printed, because the last character in the struct
ecryptfs_key_tfm's cipher_name string was never zeroed.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ecryptfs')
| -rw-r--r-- | fs/ecryptfs/crypto.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index bbed2fd40fdc..67e8b16f7bcb 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1847,6 +1847,7 @@ ecryptfs_add_new_key_tfm(struct ecryptfs_key_tfm **key_tfm, char *cipher_name, mutex_init(&tmp_tfm->key_tfm_mutex); strncpy(tmp_tfm->cipher_name, cipher_name, ECRYPTFS_MAX_CIPHER_NAME_SIZE); + tmp_tfm->cipher_name[ECRYPTFS_MAX_CIPHER_NAME_SIZE] = '\0'; tmp_tfm->key_size = key_size; rc = ecryptfs_process_key_cipher(&tmp_tfm->key_tfm, tmp_tfm->cipher_name, |