Messages in this thread | | | From | Jussi Maki <> | Date | Tue, 19 Oct 2021 12:11:28 +0200 | Subject | Re: [syzbot] BUG: corrupted list in netif_napi_add |
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On Thu, Oct 14, 2021 at 3:50 PM Paolo Abeni <pabeni@redhat.com> wrote: > > On Wed, 2021-10-13 at 15:35 +0200, Daniel Borkmann wrote: > > On 10/13/21 1:40 PM, syzbot wrote: > > > Hello, > > > > > > syzbot found the following issue on: > > > > [ +Paolo/Toke wrt veth/XDP, +Jussi wrt bond/XDP, please take a look, thanks! ] > > For the records: Toke and me are actively investigating this issue and > the other recent related one. So far we could not find anything > relevant. > > The onluy note is that the reproducer is not extremelly reliable - I > could not reproduce locally, and multiple syzbot runs on the same code > give different results. Anyhow, so far the issue was only observerable > on a specific 'next' commit which is currently "not reachable" from any > branch. I'm wondering if the issue was caused by some incosistent > status of such tree. >
Hey,
I took a look at the bond/XDP related bits and couldn't find anything obvious there. And for what it's worth, I was running the syzbot repro under bpf-next tree (223f903e9c8) in the bpf vmtest.sh environment for 30 minutes without hitting this. An inconsistent tree might be a plausible cause.
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