get_user() may fail, if so return -EFAULT.
Signed-off-by: Kulikov Vasiliy <segooon@xxxxxxxxx>
---
sound/oss/midi_synth.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/sound/oss/midi_synth.c b/sound/oss/midi_synth.c
index 3bc7104..3c09374 100644
--- a/sound/oss/midi_synth.c
+++ b/sound/oss/midi_synth.c
@@ -523,7 +523,9 @@ midi_synth_load_patch(int dev, int format, const char __user *addr,
{
unsigned char data;
- get_user(*(unsigned char *) &data, (unsigned char __user *) &((addr)[hdr_size + i]));
+ if (get_user(data,
+ (unsigned char __user *)(addr + hdr_size + i)))
+ return -EFAULT;
eox_seen = (i > 0 && data & 0x80); /* End of sysex */
--
1.7.0.4
--
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