diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-09-24 15:27:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 16:08:28 -0700 |
| commit | 698508f44ad8d2f4289f8fae4488576f2902703a (patch) | |
| tree | 73b1a7653dd795d6d8ba5fb0d99554c317c2cd1e | |
| parent | d862d211b03663ae22149cff65ad71f836fe6f7b (diff) | |
cciss: fix info leak in cciss_ioctl32_passthru()
commit 58f09e00ae095e46ef9edfcf3a5fd9ccdfad065e upstream.
The arg64 struct has a hole after ->buf_size which isn't cleared. Or if
any of the calls to copy_from_user() fail then that would cause an
information leak as well.
This was assigned CVE-2013-2147.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/block/cciss.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 62b6c2cc80b..90a4e6b940a 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1189,6 +1189,7 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode, int err; u32 cp; + memset(&arg64, 0, sizeof(arg64)); err = 0; err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, |