Bluetooth: Fix bt_skb_sendmmsg not allocating partial chunks
authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tue, 15 Feb 2022 01:59:38 +0000 (17:59 -0800)
committerMarcel Holtmann <marcel@holtmann.org>
Thu, 24 Feb 2022 20:05:21 +0000 (21:05 +0100)
commit29fb608396d6a62c1b85acc421ad7a4399085b9f
treef3f5c91a3ff17fbaa505e913512d76133f709e5e
parentfa78d2d1d64f147062e384a4a10a26a5f89944b5
Bluetooth: Fix bt_skb_sendmmsg not allocating partial chunks

Since bt_skb_sendmmsg can be used with the likes of SOCK_STREAM it
shall return the partial chunks it could allocate instead of freeing
everything as otherwise it can cause problems like bellow.

Fixes: 81be03e026dc ("Bluetooth: RFCOMM: Replace use of memcpy_from_msg with bt_skb_sendmmsg")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/d7206e12-1b99-c3be-84f4-df22af427ef5@molgen.mpg.de
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215594
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de> (Nokia N9 (MeeGo/Harmattan)
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
include/net/bluetooth/bluetooth.h