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Message-Id: <20230503031541.27855-1-dinghui@sangfor.com.cn> Date: Wed, 3 May 2023 11:15:39 +0800 From: Ding Hui <dinghui@...gfor.com.cn> To: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, intel-wired-lan@...ts.osuosl.org, jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com Cc: keescook@...omium.org, grzegorzx.szczurek@...el.com, mateusz.palczewski@...el.com, mitch.a.williams@...el.com, gregory.v.rose@...el.com, jeffrey.t.kirsher@...el.com, michal.kubiak@...el.com, simon.horman@...igine.com, madhu.chittim@...el.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org, pengdonglin@...gfor.com.cn, huangcun@...gfor.com.cn, Ding Hui <dinghui@...gfor.com.cn> Subject: [PATCH net v4 0/2] iavf: Fix issues when setting channels concurrency with removing The patchset fix two issues which can be reproduced by the following script: [root@...t ~]# cat repro.sh #!/bin/bash pf_dbsf="0000:41:00.0" vf0_dbsf="0000:41:02.0" g_pids=() function do_set_numvf() { echo 2 >/sys/bus/pci/devices/${pf_dbsf}/sriov_numvfs sleep $((RANDOM%3+1)) echo 0 >/sys/bus/pci/devices/${pf_dbsf}/sriov_numvfs sleep $((RANDOM%3+1)) } function do_set_channel() { local nic=$(ls -1 --indicator-style=none /sys/bus/pci/devices/${vf0_dbsf}/net/) [ -z "$nic" ] && { sleep $((RANDOM%3)) ; return 1; } ifconfig $nic 192.168.18.5 netmask 255.255.255.0 ifconfig $nic up ethtool -L $nic combined 1 ethtool -L $nic combined 4 sleep $((RANDOM%3)) } function on_exit() { local pid for pid in "${g_pids[@]}"; do kill -0 "$pid" &>/dev/null && kill "$pid" &>/dev/null done g_pids=() } trap "on_exit; exit" EXIT while :; do do_set_numvf ; done & g_pids+=($!) while :; do do_set_channel ; done & g_pids+=($!) wait Ding Hui (2): iavf: Fix use-after-free in free_netdev iavf: Fix out-of-bounds when setting channels on remove drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 4 +++- drivers/net/ethernet/intel/iavf/iavf_main.c | 6 +----- 2 files changed, 4 insertions(+), 6 deletions(-) -- 2.17.1
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