NetSight
high7.8

CVE-2022-49725

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix call trace in setup_tx_descriptors After PF reset and ethtool -t there was call t…

Impact

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix call trace in setup_tx_descriptors After PF reset and ethtool -t there was call trace in dmesg sometimes leading to panic. When there was some time, around 5 seconds, between reset and test there were no errors. Problem was that pf reset calls i40e_vsi_close in prep_for_reset and ethtool -t calls i40e_vsi_close in diag_test. If there was not enough time between those commands the second i40e_vsi_close starts before previous i40e_vsi_close was done which leads to crash. Add check to diag_test if pf is in reset and don't start offline tests if it is true. Add netif_info("testing failed") into unhappy path of i40e_diag_test()

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.2 before 4.14.285
from 4.15 before 4.19.249
from 4.20 before 5.4.200
from 5.5 before 5.10.124
from 5.11 before 5.15.49
from 5.16 before 5.18.6

References