Bluetooth: RFCOMM: Replace use of memcpy_from_msg with bt_skb_sendmmsg

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commit 81be03e026 upstream.

This makes use of bt_skb_sendmmsg instead using memcpy_from_msg which
is not considered safe to be used when lock_sock is held.

Also make rfcomm_dlc_send handle skb with fragments and queue them all
atomically.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Luiz Augusto von Dentz 2021-09-03 15:27:32 -07:00 • committed by Greg Kroah-Hartman

parent 1864e820a5

commit 367becefb8

2 changed files with 53 additions and 43 deletions

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52

net/bluetooth/rfcomm/core.c

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50

net/bluetooth/rfcomm/sock.c

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