| From | Kamal Mostafa <> | Subject | [PATCH 032/104] cciss: fix info leak in cciss_ioctl32_passthru() | Date | Thu, 10 Oct 2013 08:41:20 -0700 |
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3.8.13.11 -stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter <dan.carpenter@oracle.com>
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: Kamal Mostafa <kamal@canonical.com> --- drivers/block/cciss.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index d18b801..4b82bb4 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1184,6 +1184,7 @@ 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, -- 1.8.1.2
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