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Pointers to receive-buffer packets sent by Hyper-V are used within the guest VM. Hyper-V can send packets with erroneous values or modify packet fields after they are processed by the guest. To defend against these scenarios, copy (sections of) the incoming packet after validating their length and offset fields in netvsc_filter_receive(). In this way, the packet can no longer be modified by the host. Reported-by: Juan Vazquez <juvazq@microsoft.com> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20210126162907.21056-1-parri.andrea@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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.. | ||
hyperv_net.h | ||
Kconfig | ||
Makefile | ||
netvsc.c | ||
netvsc_bpf.c | ||
netvsc_drv.c | ||
netvsc_trace.c | ||
netvsc_trace.h | ||
rndis_filter.c |