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 15:42:47 -0700 |
| commit | f845e0c5753347df5331b6251da8ea7ddbf59ae9 (patch) | |
| tree | 6d8b6ce2bbea52ed7eadd9490f3c6c96e6261eeb /drivers/block | |
| parent | dd7c44612de48b6bbd2f81d4b6e83a9801a902a6 (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>
Diffstat (limited to 'drivers/block')
| -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 d3446f628d54..d7ad86536b3e 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1186,6 +1186,7 @@ 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, |