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Groups > linux.kernel > #1626449
| From | Andrey Konovalov <andreyknvl@google.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone |
| Date | 2017-04-19 18:20 +0200 |
| Message-ID | <ty0uL-5Cb-41@gated-at.bofh.it> (permalink) |
| References | (10 earlier) <tpCfT-87G-3@gated-at.bofh.it> <tpDlE-r8-11@gated-at.bofh.it> <tpDOF-Ur-9@gated-at.bofh.it> <txIet-2fd-9@gated-at.bofh.it> <ty0l4-5yM-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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On Wed, Apr 19, 2017 at 6:09 PM, David Ahern <dsa@cumulusnetworks.com> wrote: > On 4/18/17 2:43 PM, Andrey Konovalov wrote: >> Hi! >> >> I've finally managed to reproduce one of the crashes on commit >> 4f7d029b9bf009fbee76bb10c0c4351a1870d2f3 (4.11-rc7). >> >> I'm not sure if this bug has the same root cause as the first one >> reported in this thread, but it definitely has to do with ipv6 >> routing. >> >> C reproducer, syzkaller program and my .config are attached. > > built a kernel with that config. booted the vm. ran the program. nada. > > strace is showing: > > clone(child_stack=0x72ffb0, > flags=CLONE_NEWUTS|CLONE_NEWUSER|CLONE_NEWPID|CLONE_NEWNET) = -1 EINVAL > (Invalid argument) > That's weird. I usually see this when I have CONFIG_USER_NS disabled. Anyway, I just finished simplifying the reproducer. Give this one a try.
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Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone David Ahern <dsa@cumulusnetworks.com> - 2017-04-19 18:10 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Andrey Konovalov <andreyknvl@google.com> - 2017-04-19 18:20 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone David Ahern <dsa@cumulusnetworks.com> - 2017-04-19 18:30 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Cong Wang <xiyou.wangcong@gmail.com> - 2017-04-20 01:50 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone David Ahern <dsa@cumulusnetworks.com> - 2017-04-20 02:00 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Dmitry Vyukov <dvyukov@google.com> - 2017-04-20 10:40 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Andrey Konovalov <andreyknvl@google.com> - 2017-04-20 14:20 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Andrey Konovalov <andreyknvl@google.com> - 2017-04-20 17:30 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Andrey Konovalov <andreyknvl@google.com> - 2017-04-20 17:40 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Andrey Konovalov <andreyknvl@google.com> - 2017-04-20 18:20 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone David Ahern <dsa@cumulusnetworks.com> - 2017-04-21 16:30 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone David Ahern <dsa@cumulusnetworks.com> - 2017-04-21 20:30 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Eric Dumazet <eric.dumazet@gmail.com> - 2017-04-21 20:50 +0200
Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone David Ahern <dsa@cumulusnetworks.com> - 2017-04-20 17:40 +0200
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