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authorAnton Nikolaev <anikolaev@netgate.com>2022-05-16 10:33:17 +0000
committerMatthew Smith <mgsmith@netgate.com>2022-05-17 19:42:17 +0000
commit61f6a4c4f026a83390f41595cb77771a668cc55c (patch)
treeeb7ffe4d7d65fe5c9d00c25720ea31b53aa65070 /src/plugins/dpdk/device/init.c
parent59a08e65094db28884fc40e9562e303fde3b21d8 (diff)
interface: fix overflow of link speed.
Type: fix There were several places where mbps were converted to kbps for link_speed, but often drivers of devices set link speed to unknown (0xFFFFFFFF) on initialization, so there was multiplication of link_speed equal 0xFFFFFFFF(UINT32_MAX) by 1000, this provides overflow of unsigned int, and as result link_speed was equal 4295 Gbps, but actually link_speed is unknown. Signed-off-by: Anton Nikolaev <anikolaev@netgate.com> Change-Id: Ib462ed6ed685654af4687041e115bfb74e640f13
Diffstat (limited to 'src/plugins/dpdk/device/init.c')
-rw-r--r--src/plugins/dpdk/device/init.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 6d3b8643147..6b1479b9c75 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -1390,7 +1390,9 @@ dpdk_update_link_state (dpdk_device_t * xd, f64 now)
}
if (xd->link.link_speed != prev_link.link_speed)
vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
- xd->link.link_speed * 1000);
+ (xd->link.link_speed == UINT32_MAX) ?
+ UINT32_MAX :
+ xd->link.link_speed * 1000);
if (xd->link.link_status != prev_link.link_status)
{