diff options
| author | Kulikov Vasiliy <segooon@gmail.com> | 2010-07-28 20:41:17 +0400 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2011-04-30 16:53:32 +0200 |
| commit | a07cadd3a6ae614a805963b6414f4c9446ce0edb (patch) | |
| tree | eb9cf268250bf89ec9883e4ff50279e0472c5fe7 /sound/oss/midi_synth.c | |
| parent | 0c1681274394c0af6660393af7d4f01c8db5c3b2 (diff) | |
sound: oss: midi_synth: check get_user() return value
commit b3390ceab95601afc12213c3ec5551d3bc7b638f upstream.
get_user() may fail, if so return -EFAULT.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'sound/oss/midi_synth.c')
| -rw-r--r-- | 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 f83f0725391..978423ea07c 100644 --- a/sound/oss/midi_synth.c +++ b/sound/oss/midi_synth.c @@ -519,7 +519,9 @@ 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 */ |