An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00 | third party advisory patch |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00 | patch vendor advisory mailing list |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7 | vendor advisory mailing list release notes |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html | third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html | third party advisory vendor advisory |
| https://security.netapp.com/advisory/ntap-20190905-0002/ | third party advisory |