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Groups > linux.kernel > #1450308
| From | David Miller <davem@davemloft.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH net-next v7 0/2] bpf: add bpf_probe_write_user helper & example |
| Date | 2016-07-26 03:10 +0200 |
| Message-ID | <rYZ2F-3OD-1@gated-at.bofh.it> (permalink) |
| References | <rYNEe-4FI-29@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Sargun Dhillon <sargun@sargun.me> Date: Mon, 25 Jul 2016 05:54:29 -0700 > This patch series contains two patches that add support for a probe_write > helper to BPF programs. This allows them to manipulate user memory during > the course of tracing. The second patch in the series has an example that > uses it, in one the intended ways to divert execution. > > Thanks to Alexei Starovoitov, and Daniel Borkmann for being patient, review, and > helping me get familiar with the code base. I've made changes based on their > recommendations. > > This helper should be considered for experimental usage and debugging, so we > print a warning to dmesg when it is along with the command and pid when someone > tries to install a proglet that uses it. A follow-up patchset will contain a > mechanism to verify the safety of the probe beyond what was done by hand. Series applied, thanks.
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[PATCH net-next v7 0/2] bpf: add bpf_probe_write_user helper & example Sargun Dhillon <sargun@sargun.me> - 2016-07-25 15:00 +0200 Re: [PATCH net-next v7 0/2] bpf: add bpf_probe_write_user helper & example David Miller <davem@davemloft.net> - 2016-07-26 03:10 +0200
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