6.6-stable review patch. If anyone has any objections, please let me know.
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From: Takashi Iwai tiwai@suse.de
commit 32108c22ac619c32dd6db594319e259b63bfb387 upstream.
UMP events don't use the event type field, hence it's invalid to apply the filter, which may drop the events unexpectedly. Skip the event filtering for UMP events, instead.
Fixes: 46397622a3fa ("ALSA: seq: Add UMP support") Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20240819084156.10286-1-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/core/seq/seq_clientmgr.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -537,6 +537,9 @@ static struct snd_seq_client *get_event_ return NULL; if (! dest->accept_input) goto __not_avail; + if (snd_seq_ev_is_ump(event)) + return dest; /* ok - no filter checks */ + if ((dest->filter & SNDRV_SEQ_FILTER_USE_EVENT) && ! test_bit(event->type, dest->event_filter)) goto __not_avail;