From: Takashi Iwai <tiwai@suse.de>
To: linux-sound@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/5] ALSA: seq: Fix missing direction and ump_group handling in 32bit compat ioctl
Date: Tue, 6 Oct 2026 19:39:53 +0200 [thread overview]
Message-ID: <20261006174002.703431-2-tiwai@suse.de> (raw)
In-Reply-To: <20261006174002.703431-1-tiwai@suse.de>
I forgot to cover the two new fields, direction and ump_group, in
struct snd_seq_port_info for the 32bit compat ioctls of
SNDRV_SEQ_IOCTL_GET_PORT_INFO & co, which ended up with the garbage
copies in those fields. Add the handling of those two fields in the
compat layer.
Fixes: ff166a9d19fa ("ALSA: seq: Add port direction to snd_seq_port_info")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/core/seq/seq_compat.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/sound/core/seq/seq_compat.c b/sound/core/seq/seq_compat.c
index 80110501da6f..9ea205e1f2dc 100644
--- a/sound/core/seq/seq_compat.c
+++ b/sound/core/seq/seq_compat.c
@@ -25,7 +25,9 @@ struct snd_seq_port_info32 {
u32 kernel; /* reserved for kernel use (must be NULL) */
u32 flags; /* misc. conditioning */
unsigned char time_queue; /* queue # for timestamping */
- char reserved[59]; /* for future use */
+ unsigned char direction; /* port usage direction (r/w/bidir) */
+ unsigned char ump_group; /* 0 = UMP EP (no conversion), 1-16 = UMP group number */
+ char reserved[57]; /* for future use */
};
static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd,
@@ -40,7 +42,9 @@ static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned
if (copy_from_user(data, data32, sizeof(*data32)) ||
get_user(data->flags, &data32->flags) ||
- get_user(data->time_queue, &data32->time_queue))
+ get_user(data->time_queue, &data32->time_queue) ||
+ get_user(data->direction, &data32->direction) ||
+ get_user(data->ump_group, &data32->ump_group))
return -EFAULT;
data->kernel = NULL;
@@ -52,7 +56,9 @@ static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned
if (copy_to_user(data32, data, sizeof(*data32)) ||
put_user(data->flags, &data32->flags) ||
- put_user(data->time_queue, &data32->time_queue))
+ put_user(data->time_queue, &data32->time_queue) ||
+ put_user(data->direction, &data32->direction) ||
+ put_user(data->ump_group, &data32->ump_group))
return -EFAULT;
return err;
--
2.55.0
next prev parent reply other threads:[~2026-10-06 17:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-06 17:39 [PATCH 0/5] ALSA: Fix yet more bugs reported by Sashiko Takashi Iwai
2026-10-06 17:39 ` Takashi Iwai [this message]
2026-10-06 17:39 ` [PATCH 2/5] ALSA: pcmtest: Fix leak at probe error Takashi Iwai
2026-10-06 17:39 ` [PATCH 3/5] ALSA: aloop: Avoid a bad mixure of guard() and goto Takashi Iwai
2026-10-06 17:39 ` [PATCH 4/5] ALSA: core: Fix leaks at snd_card_init() error paths Takashi Iwai
2026-10-06 17:39 ` [PATCH 5/5] ALSA: seq: Don't lose partial read failure Takashi Iwai
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