Messages in this thread Patch in this message | | | Date | Mon, 3 Jun 2013 12:26:45 +0300 | From | Dan Carpenter <> | Subject | [patch] cciss: info leak in cciss_ioctl32_passthru() |
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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.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 6374dc1..34971aa 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1201,6 +1201,7 @@ 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,
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