Linux-Bluetooth Archive on
 help / color / Atom feed
From: "Michael N. Moran" <>
Cc: "Michael N. Moran" <>
Subject: [PATCH BlueZ] The meshctl sock_write() max_len variable is declared as a uint8_t, which causes the calculation of the GATT MTU to be truncated when the MTU (write_mtu) is greater than 259. This error causes incorrect segmentation.
Date: Sat, 28 Sep 2019 10:14:03 -0400
Message-ID: <> (raw)
In-Reply-To: <>

From: "Michael N. Moran" <>

 tools/mesh/gatt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/mesh/gatt.c b/tools/mesh/gatt.c
index 0a942d4..c9e789c 100644
--- a/tools/mesh/gatt.c
+++ b/tools/mesh/gatt.c
@@ -189,7 +189,7 @@ static bool sock_write(struct io *io, void *user_data)
 	struct write_data *data = user_data;
 	struct iovec iov[2];
 	uint8_t sar;
-	uint8_t max_len;
+	uint16_t max_len;
 	if (data == NULL)
 		return true;

      reply index

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-28 14:14 [PATCH BlueZ] meshctl truncates GATT MTU Michael N. Moran
2019-09-28 14:14 ` Michael N. Moran [this message]

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Bluetooth Archive on

Archives are clonable:
	git clone --mirror linux-bluetooth/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-bluetooth linux-bluetooth/ \
	public-inbox-index linux-bluetooth

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone