diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-08-13 11:48:01 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-08-13 11:48:01 +0900 |
| commit | e290861f99131fc42d98012a9ea2dc185f08f8f9 (patch) | |
| tree | 5c8b92d095d74d03b281711c81bac54bd59989cd /fs/ecryptfs | |
| parent | b4a757367d36cebddcd332a4024d92f1e87af370 (diff) | |
| parent | dbefd606a3b3634799b625f4900336e61c89e868 (diff) | |
Merge branch 'sh/stable-updates'
Diffstat (limited to 'fs/ecryptfs')
| -rw-r--r-- | fs/ecryptfs/keystore.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c index af737bb56cb..259525c9abb 100644 --- a/fs/ecryptfs/keystore.c +++ b/fs/ecryptfs/keystore.c @@ -1303,6 +1303,13 @@ parse_tag_3_packet(struct ecryptfs_crypt_stat *crypt_stat, } (*new_auth_tok)->session_key.encrypted_key_size = (body_size - (ECRYPTFS_SALT_SIZE + 5)); + if ((*new_auth_tok)->session_key.encrypted_key_size + > ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES) { + printk(KERN_WARNING "Tag 3 packet contains key larger " + "than ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES\n"); + rc = -EINVAL; + goto out_free; + } if (unlikely(data[(*packet_size)++] != 0x04)) { printk(KERN_WARNING "Unknown version number [%d]\n", data[(*packet_size) - 1]); @@ -1449,6 +1456,12 @@ parse_tag_11_packet(unsigned char *data, unsigned char *contents, rc = -EINVAL; goto out; } + if (unlikely((*tag_11_contents_size) > max_contents_bytes)) { + printk(KERN_ERR "Literal data section in tag 11 packet exceeds " + "expected size\n"); + rc = -EINVAL; + goto out; + } if (data[(*packet_size)++] != 0x62) { printk(KERN_WARNING "Unrecognizable packet\n"); rc = -EINVAL; |