ALSA: line6: fix stack overflow in line6_midi_transmit

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commit b8800d324a upstream.

Correctly calculate available space including the size of the chunk
buffer. This fixes a buffer overflow when multiple MIDI sysex
messages are sent to a PODxt device.

Signed-off-by: Artem Egorkine <arteme@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221225105728.1153989-2-arteme@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Artem Egorkine 2022-12-25 12:57:28 +02:00 • committed by Greg Kroah-Hartman

parent e58d1d2eb3

commit 389d34c2a8

1 changed files with 2 additions and 1 deletions

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sound/usb/line6/midi.c

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