ACK: [PATCH 0/3][T] CVE-2016-9576 - Arbitrary kernel memory reads/writes in the SCSI driver
Stefan Bader
stefan.bader at canonical.com
Thu Sep 27 16:42:13 UTC 2018
On 14.09.2018 20:52, Tyler Hicks wrote:
> https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9576.html
>
> The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel
> before 4.8.14 does not properly restrict the type of iterator, which allows
> local users to read or write to arbitrary kernel memory locations or cause
> a denial of service (use-after-free) by leveraging access to a /dev/sg
> device.
>
> I've manually tested these patches using the syzkaller reproducer and
> sg_dd from sg3-utils inside of a VM with a SCSI drive attached.
>
> Tyler
>
>
Acked-by: Stefan Bader <stefan.bader at canonical.com>
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