diff options
| author | Kulikov Vasiliy <segooon@gmail.com> | 2010-07-28 20:41:17 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-14 16:53:09 -0700 |
| commit | eddded6c0566797b36dd64a6fa7e72dc781dc353 (patch) | |
| tree | 97476d4034ebad52bbeaa2328cc3355ec060d0b9 /sound | |
| parent | ba1a933508f6d6bfb6da1bb955ce492022190a38 (diff) | |
| download | lwn-eddded6c0566797b36dd64a6fa7e72dc781dc353.tar.gz lwn-eddded6c0566797b36dd64a6fa7e72dc781dc353.zip | |
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')
| -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 11685f12569d..2292c230d7e6 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 */ |