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| author | Eliot Blennerhassett <eliot@blennerhassett.gen.nz> | 2014-12-31 13:48:32 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-12-31 16:12:43 +0300 |
| commit | 0d02e1292715d00674a49626146e3a854b504cb1 (patch) | |
| tree | a0ac354d0799db7e834d0af19e45a496acffb0ac /sound/pci/asihpi/hpioctl.c | |
| parent | 240491e143414973a0204e6c7cd4cfd19cb3e027 (diff) | |
| download | linux-0d02e1292715d00674a49626146e3a854b504cb1.tar.xz | |
ALSA: asihpi: fix an information leak in asihpi_hpi_ioctl()
Add missing limits to keep copied data within allocated buffer.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/asihpi/hpioctl.c')
| -rw-r--r-- | sound/pci/asihpi/hpioctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c index 6aa677e60555..72af66bdf714 100644 --- a/sound/pci/asihpi/hpioctl.c +++ b/sound/pci/asihpi/hpioctl.c @@ -153,6 +153,8 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) goto out; } + res_max_size = min_t(size_t, res_max_size, sizeof(*hr)); + switch (hm->h.function) { case HPI_SUBSYS_CREATE_ADAPTER: case HPI_ADAPTER_DELETE: |