virtio_net: fix missing lock protection on control_buf access

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Refactored the handling of control_buf to be within the cvq_lock
critical section, mitigating race conditions between reading device
responses and new command submissions.

Fixes: 6f45ab3e04 ("virtio_net: Add a lock for the command VQ.")
Signed-off-by: Heng Qi <hengqi@linux.alibaba.com>
Reviewed-by: Hariprasad Kelam <hkelam@marvell.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240530034143.19579-1-hengqi@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Heng Qi 2024-05-30 11:41:43 +08:00 • committed by Jakub Kicinski

parent d8ec19857b

commit 30636258a7

1 changed files with 3 additions and 1 deletions

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drivers/net/virtio_net.c

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