Jul 24, 2019, 12:22:36 PM7/24/19
to Dmitry Vyukov, John Fastabend, syzbot, bpf, David Airlie, alexande...@amd.com, amd...@lists.freedesktop.org, Alexei Starovoitov, christia...@amd.com, Daniel Borkmann, david...@amd.com, DRI, leo...@amd.com, LKML, netdev, syzkaller-bugs, Marco Elver
It took a series of patches here,
The fix commits from bpf tree are,
The last commit fixes this paticular syzbot issue,
Author: John Fastabend <john.fa...@gmail.com
Date: Fri Jul 19 10:29:22 2019 -0700
bpf: sockmap/tls, close can race with map free
The other commits address some other issues found while testing.
> We don't need to wait for the fix to percolate up (and then down
> too!). syzbot gracefully handles when a patch is not yet present
> everywhere (it happens all the time).
Great. By the way the above should fix many of the outstanding
reports against bpf sockmap and tls side. I'll have to walk through
each one individually to double check though. I guess we can mark
them as dup reports and syzbot should sort it out?
> Btw, this was due to a stack overflow, right? Or something else?
Right, stack overflow due to race in updating sock ops where build a
circular call chain.