ACK: [SRU][Mantic][PATCH 0/1] CVE-2023-6560

[Jacob Martin]

Acked-by: Jacob Martin <jacob.martin at canonical.com>

On 1/12/24 4:05 PM, Yuxuan Luo wrote:
> [Impact]
> It has been found that io_uring lacks checking user allocated
> discontigous pages in io_uring.c which is not supported at the moment.
> Failing to do so might leads to out-of-bound read, leading to potential
> memory leak or system crash.
> 
> [Backport]
> It is a clean cherry pick.
> 
> [Test]
> Tested against test suite in liburing.
> 
> [Potential Regression]
> Regression might occur when users allocating memory for their
> application using io_uring.
> 
> Jens Axboe (1):
>    io_uring: don't allow discontig pages for IORING_SETUP_NO_MMAP
> 
>   io_uring/io_uring.c | 39 +++++++++++++++++++++------------------
>   1 file changed, 21 insertions(+), 18 deletions(-)
>