]> git.baikalelectronics.ru Git - kernel.git/commit
ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
authorNicolas Boichat <drinkcat@chromium.org>
Mon, 18 Jan 2016 13:35:01 +0000 (21:35 +0800)
committerTakashi Iwai <tiwai@suse.de>
Mon, 18 Jan 2016 13:39:13 +0000 (14:39 +0100)
commit2f0e599ef9fa3c1af3b4a1945e16012f5d3bd94a
tree2d4f530337ac3bf67efaa8c4828a26be2849904b
parent6c5fefc1785ab63a6273dc41c276bc4583fd05fe
ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode

This reverts one hunk of
commit 2a8fd2ea22be ("ALSA: sound/core: use memdup_user()"), which
replaced a number of kmalloc followed by memcpy with memdup calls.

In this case, we are copying from a struct snd_seq_port_info32 to a
struct snd_seq_port_info, but the latter is 4 bytes longer than the
32-bit version, so we need to separate kmalloc and copy calls.

Fixes: 2a8fd2ea22be ('ALSA: sound/core: use memdup_user()')
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/core/seq/seq_compat.c