diff options
| author | Alexander Stein <alexander.stein@systec-electronic.com> | 2011-11-01 09:40:07 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-11-01 09:46:39 +0100 |
| commit | 359f90982cba0ba8db39b683de05dcb2de64b979 (patch) | |
| tree | 16c4a21f9968f3a5e84f0d274244861f7f173903 /sound/pci/hda/hda_hwdep.c | |
| parent | ALSA: intel8x0: Improve performance in virtual environment (diff) | |
| download | linux-359f90982cba0ba8db39b683de05dcb2de64b979.tar.xz linux-359f90982cba0ba8db39b683de05dcb2de64b979.zip | |
ALSA: hda_hwdep: Fix possible buffer overflow
If a line in the firmware file is larger than the given buffer size (and
so the firmware file size), size is set to a value larger than the actual
buffer size. This results in an overflow in the buffer passed.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_hwdep.c')
| -rw-r--r-- | sound/pci/hda/hda_hwdep.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c index 72e5885007cc..7e7d0788ddcf 100644 --- a/sound/pci/hda/hda_hwdep.c +++ b/sound/pci/hda/hda_hwdep.c @@ -756,8 +756,6 @@ static int get_line_from_fw(char *buf, int size, struct firmware *fw) } if (!fw->size) return 0; - if (size < fw->size) - size = fw->size; for (len = 0; len < fw->size; len++) { if (!*p) |