Re: Misc 2.5 Fixes: cp-user-mpu401

[Dipankar Sarma]

Use copy_to_user to copy mpu_synth_ioctl arg.

 sound/oss/mpu401.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -puN sound/oss/mpu401.c~cp-user-mpu401 sound/oss/mpu401.c
--- linux-2.5.70-ds/sound/oss/mpu401.c~cp-user-mpu401	2003-06-08 02:59:48.000000000 +0530
+++ linux-2.5.70-ds-dipankar/sound/oss/mpu401.c	2003-06-08 02:59:48.000000000 +0530
@@ -792,7 +792,8 @@ static int mpu_synth_ioctl(int dev,
 	{
 
 		case SNDCTL_SYNTH_INFO:
-			memcpy((&((char *) arg)[0]), (char *) &mpu_synth_info[midi_dev], sizeof(struct synth_info));
+			if(copy_to_user((&((char *) arg)[0]), (char *) &mpu_synth_info[midi_dev], sizeof(struct synth_info)))
+				return -EFAULT;
 			return 0;
 
 		case SNDCTL_SYNTH_MEMAVL:

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