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| author | Andres Beltran <[email protected]> | 2021-04-08 16:14:39 +0000 |
|---|---|---|
| committer | Wei Liu <[email protected]> | 2021-05-14 17:37:46 +0000 |
| commit | adae1e931acd8b430d31141a283ea06d4b705417 (patch) | |
| tree | 70799e7f212ce0f991b0a675625391b8adf606f3 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | hv_balloon: Remove redundant assignment to region_start (diff) | |
| download | kernel-adae1e931acd8b430d31141a283ea06d4b705417.tar.gz kernel-adae1e931acd8b430d31141a283ea06d4b705417.zip | |
Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer
Pointers to ring-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, return a copy of the incoming VMBus packet
after validating its length and offset fields in hv_pkt_iter_first().
In this way, the packet can no longer be modified by the host.
Signed-off-by: Andres Beltran <[email protected]>
Co-developed-by: Andrea Parri (Microsoft) <[email protected]>
Signed-off-by: Andrea Parri (Microsoft) <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions