diff options
| author | Jason Wang <jasowang@redhat.com> | 2021-10-19 15:01:44 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-11-01 05:26:48 -0400 |
| commit | 28962ec595d701ec9d39369f9774895dfa408273 (patch) | |
| tree | f3f44b8e7d47cf40053f364f417859c5eb8c1213 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 63b4ffa4fad0b14e9ebfedd7f7bb709b1c92472f (diff) | |
virtio_console: validate max_nr_ports before trying to use it
We calculate nr_ports based on the max_nr_ports:
nr_queues = use_multiport(portdev) ? (nr_ports + 1) * 2 : 2;
If the device advertises a large max_nr_ports, we will end up with a
integer overflow. Fixing this by validating the max_nr_ports and fail
the probe for invalid max_nr_ports in this case.
Cc: Amit Shah <amit@kernel.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211019070152.8236-3-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions