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| author | Wenwen Wang <wenwen@cs.uga.edu> | 2019-08-20 07:16:40 +0200 |
|---|---|---|
| committer | Tyler Hicks <tyhicks@canonical.com> | 2019-08-20 09:02:03 +0200 |
| commit | fe2e082f5da5b4a0a92ae32978f81507ef37ec66 (patch) | |
| tree | c43e27c36b574ade0667ea67cc60685cfc4a87ef | |
| parent | Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| download | linux-fe2e082f5da5b4a0a92ae32978f81507ef37ec66.tar.xz linux-fe2e082f5da5b4a0a92ae32978f81507ef37ec66.zip | |
ecryptfs: fix a memory leak bug in parse_tag_1_packet()
In parse_tag_1_packet(), if tag 1 packet contains a key larger than
ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES, no cleanup is executed, leading to a
memory leak on the allocated 'auth_tok_list_item'. To fix this issue, go to
the label 'out_free' to perform the cleanup work.
Cc: stable@vger.kernel.org
Fixes: dddfa461fc89 ("[PATCH] eCryptfs: Public key; packet management")
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
| -rw-r--r-- | fs/ecryptfs/keystore.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c index 216fbe6a4837..4dc09638de8f 100644 --- a/fs/ecryptfs/keystore.c +++ b/fs/ecryptfs/keystore.c @@ -1304,7 +1304,7 @@ parse_tag_1_packet(struct ecryptfs_crypt_stat *crypt_stat, printk(KERN_WARNING "Tag 1 packet contains key larger " "than ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES\n"); rc = -EINVAL; - goto out; + goto out_free; } memcpy((*new_auth_tok)->session_key.encrypted_key, &data[(*packet_size)], (body_size - (ECRYPTFS_SIG_SIZE + 2))); |