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Groups > linux.kernel > #1284173
| From | David Miller <davem@davemloft.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: bpf: undefined shift in __bpf_prog_run |
| Date | 2015-12-04 20:30 +0100 |
| Message-ID | <qC4dk-6SH-17@gated-at.bofh.it> (permalink) |
| References | <qC3AC-6ol-27@gated-at.bofh.it> <qC3TX-6LX-3@gated-at.bofh.it> <qC43D-6Pk-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Alexei Starovoitov <alexei.starovoitov@gmail.com> Date: Fri, 4 Dec 2015 11:10:15 -0800 > just don't generate random bpf programs with such shifts. Agreed, it is exactly the same as if the compiler emitted real cpu shift instructions with undefined behavior. The creator of the BPF code in question is what should be fixed. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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bpf: undefined shift in __bpf_prog_run Dmitry Vyukov <dvyukov@google.com> - 2015-12-04 12:20 +0100
Re: bpf: undefined shift in __bpf_prog_run Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2015-12-04 19:50 +0100
Re: bpf: undefined shift in __bpf_prog_run Dmitry Vyukov <dvyukov@google.com> - 2015-12-04 20:10 +0100
Re: bpf: undefined shift in __bpf_prog_run Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2015-12-04 20:20 +0100
Re: bpf: undefined shift in __bpf_prog_run David Miller <davem@davemloft.net> - 2015-12-04 20:30 +0100
Re: bpf: undefined shift in __bpf_prog_run Dmitry Vyukov <dvyukov@google.com> - 2015-12-04 20:50 +0100
Re: bpf: undefined shift in __bpf_prog_run Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2015-12-04 21:40 +0100
Re: bpf: undefined shift in __bpf_prog_run Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2015-12-04 22:00 +0100
Re: bpf: undefined shift in __bpf_prog_run David Miller <davem@davemloft.net> - 2015-12-04 22:40 +0100
Re: bpf: undefined shift in __bpf_prog_run Hannes Frederic Sowa <hannes@stressinduktion.org> - 2015-12-04 22:30 +0100
RE: bpf: undefined shift in __bpf_prog_run David Laight <David.Laight@ACULAB.COM> - 2015-12-07 12:20 +0100
Re: bpf: undefined shift in __bpf_prog_run Daniel Borkmann <daniel@iogearbox.net> - 2015-12-09 19:40 +0100
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