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ALSA: line6: fix stack overflow in line6_midi_transmit
authorArtem Egorkine <arteme@gmail.com>
Sun, 25 Dec 2022 10:57:28 +0000 (12:57 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Jan 2023 11:07:35 +0000 (12:07 +0100)
commitb026af92b2cea907c780f7168c730c816cd33311
treeae2f05fa6f0c6e20205ed225dcf0cecaecbac14dtree | snapshot (tar.gz zip)
parent0407e792783bff3d3fbc00cf660dc72ee3282afdcommit | diff
ALSA: line6: fix stack overflow in line6_midi_transmit

commit b8800d324abb50160560c636bfafe2c81001b66c 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>
sound/usb/line6/midi.c diff | blob | blame | history