Thread (32 messages) 32 messages, 11 authors, 2020-08-14

Re: [Linux-kernel-mentees] [PATCH net] rds: Prevent kernel-infoleak in rds_notify_queue_get()

From: Jason Gunthorpe <jgg@ziepe.ca>
Date: 2020-08-03 23:06:34
Also in: linux-rdma, lkml, netdev

On Sun, Aug 02, 2020 at 03:45:40PM -0700, Joe Perches wrote:
On Sun, 2020-08-02 at 19:28 -0300, Jason Gunthorpe wrote:
quoted
On Sun, Aug 02, 2020 at 03:23:58PM -0700, Joe Perches wrote:
quoted
On Sun, 2020-08-02 at 19:10 -0300, Jason Gunthorpe wrote:
quoted
On Sat, Aug 01, 2020 at 08:38:33AM +0300, Leon Romanovsky wrote:
quoted
I'm using {} instead of {0} because of this GCC bug.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
This is why the {} extension exists..
There is no guarantee that the gcc struct initialization {}
extension also zeros padding.
We just went over this. Yes there is, C11 requires it.
c11 is not c90.  The kernel uses c90.
The kernel already relies on a lot of C11/C99 features and
behaviors. For instance Linus just bumped the minimum compiler version
so that C11's _Generic is usable.

Why do you think this particular part of C11 shouldn't be relied on?

Jason
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