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| author | Wenwen Wang <wenwen@cs.uga.edu> | 2019-08-20 08:33:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-28 18:35:51 +0300 |
| commit | 0db1fe06b692f5d18b6815d8f0e87b05d167ff21 (patch) | |
| tree | 4ac8bbfcb2240247893b343cc86f6cc35dc6cdc4 /fs/ecryptfs/messaging.c | |
| parent | 344ea2525869377c7906ff53079ba1d4c388bc60 (diff) | |
| download | linux-0db1fe06b692f5d18b6815d8f0e87b05d167ff21.tar.xz | |
ecryptfs: fix a memory leak bug in ecryptfs_init_messaging()
commit b4a81b87a4cfe2bb26a4a943b748d96a43ef20e8 upstream.
In ecryptfs_init_messaging(), if the allocation for 'ecryptfs_msg_ctx_arr'
fails, the previously allocated 'ecryptfs_daemon_hash' is not deallocated,
leading to a memory leak bug. To fix this issue, free
'ecryptfs_daemon_hash' before returning the error.
Cc: stable@vger.kernel.org
Fixes: 88b4a07e6610 ("[PATCH] eCryptfs: Public key transport mechanism")
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ecryptfs/messaging.c')
| -rw-r--r-- | fs/ecryptfs/messaging.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c index 4f457d5c4933..26464f9d9b76 100644 --- a/fs/ecryptfs/messaging.c +++ b/fs/ecryptfs/messaging.c @@ -397,6 +397,7 @@ int __init ecryptfs_init_messaging(void) * ecryptfs_message_buf_len), GFP_KERNEL); if (!ecryptfs_msg_ctx_arr) { + kfree(ecryptfs_daemon_hash); rc = -ENOMEM; printk(KERN_ERR "%s: Failed to allocate memory\n", __func__); goto out; |