diff mbox series

[Bluez] Fix memory leaks in obex

Message ID 20210515094307.16fb1572@ivy-bridge
State New
Headers show
Series [Bluez] Fix memory leaks in obex | expand

Commit Message

Steve Grubb May 15, 2021, 1:43 p.m. UTC
This patch fixes a couple memory leaks.

In filesystem, g_file_get_contents allocates fresh memory to buf.
It needs to be freed after conversion to a GString object.

Destination was missed on an error path as is mld.

---
 obexd/plugins/filesystem.c     | 2 +-
 obexd/plugins/ftp.c            | 8 ++++++--
 obexd/plugins/messages-dummy.c | 1 +
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/obexd/plugins/filesystem.c b/obexd/plugins/filesystem.c
index 09bff8ad0..44e3cf3d2 100644
--- a/obexd/plugins/filesystem.c
+++ b/obexd/plugins/filesystem.c@@ -416,6 +416,7 @@ static void *capability_open(const char *name, int oflag, mode_t mode,
 		}
 
 		object->buffer = g_string_new(buf);
+		g_free(buf);
 
 		if (size)
 			*size = object->buffer->len;

Comments

Tedd Ho-Jeong An May 17, 2021, 5:10 p.m. UTC | #1
Hi Steve,

On Sat, 2021-05-15 at 09:43 -0400, Steve Grubb wrote:
> This patch fixes a couple memory leaks.

> 

> In filesystem, g_file_get_contents allocates fresh memory to buf.

> It needs to be freed after conversion to a GString object.

> 

> Destination was missed on an error path as is mld.

> 

> ---

>  obexd/plugins/filesystem.c     | 2 +-

>  obexd/plugins/ftp.c            | 8 ++++++--

>  obexd/plugins/messages-dummy.c | 1 +

>  3 files changed, 8 insertions(+), 3 deletions(-)

> 

> diff --git a/obexd/plugins/filesystem.c b/obexd/plugins/filesystem.c

> index 09bff8ad0..44e3cf3d2 100644

> --- a/obexd/plugins/filesystem.c

> +++ b/obexd/plugins/filesystem.c@@ -416,6 +416,7 @@ static void *capability_open(const char *name, int oflag, mode_t mode,


CI wasn't able to apply the patch and couldn't run the tests, and I think because of this line.


>  		}

>  

>  		object->buffer = g_string_new(buf);

> +		g_free(buf);

>  

>  		if (size)

>  			*size = object->buffer->len;

> diff --git a/obexd/plugins/ftp.c b/obexd/plugins/ftp.c

> index 259bfcae2..4b04bab06 100644

> --- a/obexd/plugins/ftp.c

> +++ b/obexd/plugins/ftp.c

> @@ -386,8 +386,10 @@ static int ftp_copy(struct ftp_session *ftp, const char *name,

>  	ret = verify_path(destdir);

>  	g_free(destdir);

>  

> -	if (ret < 0)

> +	if (ret < 0) {

> +		g_free(destination);

>  		return ret;

> +	}

>  

>  	source = g_build_filename(ftp->folder, name, NULL);

>  

> @@ -424,8 +426,10 @@ static int ftp_move(struct ftp_session *ftp, const char *name,

>  	ret = verify_path(destdir);

>  	g_free(destdir);

>  

> -	if (ret < 0)

> +	if (ret < 0) {

> +		g_free(destination);

>  		return ret;

> +	}

>  

>  	source = g_build_filename(ftp->folder, name, NULL);

>  

> diff --git a/obexd/plugins/messages-dummy.c b/obexd/plugins/messages-dummy.c

> index 34199fa05..e37b52df6 100644

> --- a/obexd/plugins/messages-dummy.c

> +++ b/obexd/plugins/messages-dummy.c

> @@ -488,6 +488,7 @@ int messages_get_messages_listing(void *session, const char *name,

>  			int err = -errno;

>  			DBG("fopen(): %d, %s", -err, strerror(-err));

>  			g_free(path);

> +			g_free(mld);

>  			return -EBADR;

>  		}

>  	}
Steve Grubb May 17, 2021, 5:17 p.m. UTC | #2
On Monday, May 17, 2021 1:10:58 PM EDT Tedd Ho-Jeong An wrote:
> On Sat, 2021-05-15 at 09:43 -0400, Steve Grubb wrote:

> > This patch fixes a couple memory leaks.

> > 

> > In filesystem, g_file_get_contents allocates fresh memory to buf.

> > It needs to be freed after conversion to a GString object.

> > 

> > Destination was missed on an error path as is mld.

> > 

> > ---

> > obexd/plugins/filesystem.c     | 2 +-

> > obexd/plugins/ftp.c            | 8 ++++++--

> > obexd/plugins/messages-dummy.c | 1 +

> > 3 files changed, 8 insertions(+), 3 deletions(-)

> > 

> > diff --git a/obexd/plugins/filesystem.c b/obexd/plugins/filesystem.c

> > index 09bff8ad0..44e3cf3d2 100644

> > --- a/obexd/plugins/filesystem.c

> > +++ b/obexd/plugins/filesystem.c@@ -416,6 +416,7 @@ static void

> > *capability_open(const char *name, int oflag, mode_t mode,

>

> CI wasn't able to apply the patch and couldn't run the tests, and I think

> because of this line.


Hmm. Apologies. I'll regenerate the patch and send it again.

Cheers,
-Steve
Luiz Augusto von Dentz May 19, 2021, 6:09 p.m. UTC | #3
Hi Steve,

On Sat, May 15, 2021 at 7:16 PM Steve Grubb <sgrubb@redhat.com> wrote:
>

> This patch fixes a couple memory leaks.

>

> In filesystem, g_file_get_contents allocates fresh memory to buf.

> It needs to be freed after conversion to a GString object.

>

> Destination was missed on an error path as is mld.

>

> ---

>  obexd/plugins/filesystem.c     | 2 +-

>  obexd/plugins/ftp.c            | 8 ++++++--

>  obexd/plugins/messages-dummy.c | 1 +

>  3 files changed, 8 insertions(+), 3 deletions(-)

>

> diff --git a/obexd/plugins/filesystem.c b/obexd/plugins/filesystem.c

> index 09bff8ad0..44e3cf3d2 100644

> --- a/obexd/plugins/filesystem.c

> +++ b/obexd/plugins/filesystem.c@@ -416,6 +416,7 @@ static void *capability_open(const char *name, int oflag, mode_t mode,

>                 }

>

>                 object->buffer = g_string_new(buf);

> +               g_free(buf);

>

>                 if (size)

>                         *size = object->buffer->len;

> diff --git a/obexd/plugins/ftp.c b/obexd/plugins/ftp.c

> index 259bfcae2..4b04bab06 100644

> --- a/obexd/plugins/ftp.c

> +++ b/obexd/plugins/ftp.c

> @@ -386,8 +386,10 @@ static int ftp_copy(struct ftp_session *ftp, const char *name,

>         ret = verify_path(destdir);

>         g_free(destdir);

>

> -       if (ret < 0)

> +       if (ret < 0) {

> +               g_free(destination);

>                 return ret;

> +       }

>

>         source = g_build_filename(ftp->folder, name, NULL);

>

> @@ -424,8 +426,10 @@ static int ftp_move(struct ftp_session *ftp, const char *name,

>         ret = verify_path(destdir);

>         g_free(destdir);

>

> -       if (ret < 0)

> +       if (ret < 0) {

> +               g_free(destination);

>                 return ret;

> +       }

>

>         source = g_build_filename(ftp->folder, name, NULL);

>

> diff --git a/obexd/plugins/messages-dummy.c b/obexd/plugins/messages-dummy.c

> index 34199fa05..e37b52df6 100644

> --- a/obexd/plugins/messages-dummy.c

> +++ b/obexd/plugins/messages-dummy.c

> @@ -488,6 +488,7 @@ int messages_get_messages_listing(void *session, const char *name,

>                         int err = -errno;

>                         DBG("fopen(): %d, %s", -err, strerror(-err));

>                         g_free(path);

> +                       g_free(mld);

>                         return -EBADR;

>                 }

>         }

> --

> 2.31.1


Applied, thanks.

-- 
Luiz Augusto von Dentz
diff mbox series

Patch

diff --git a/obexd/plugins/ftp.c b/obexd/plugins/ftp.c
index 259bfcae2..4b04bab06 100644
--- a/obexd/plugins/ftp.c
+++ b/obexd/plugins/ftp.c
@@ -386,8 +386,10 @@  static int ftp_copy(struct ftp_session *ftp, const char *name,
 	ret = verify_path(destdir);
 	g_free(destdir);
 
-	if (ret < 0)
+	if (ret < 0) {
+		g_free(destination);
 		return ret;
+	}
 
 	source = g_build_filename(ftp->folder, name, NULL);
 
@@ -424,8 +426,10 @@  static int ftp_move(struct ftp_session *ftp, const char *name,
 	ret = verify_path(destdir);
 	g_free(destdir);
 
-	if (ret < 0)
+	if (ret < 0) {
+		g_free(destination);
 		return ret;
+	}
 
 	source = g_build_filename(ftp->folder, name, NULL);
 
diff --git a/obexd/plugins/messages-dummy.c b/obexd/plugins/messages-dummy.c
index 34199fa05..e37b52df6 100644
--- a/obexd/plugins/messages-dummy.c
+++ b/obexd/plugins/messages-dummy.c
@@ -488,6 +488,7 @@  int messages_get_messages_listing(void *session, const char *name,
 			int err = -errno;
 			DBG("fopen(): %d, %s", -err, strerror(-err));
 			g_free(path);
+			g_free(mld);
 			return -EBADR;
 		}
 	}