[Bug 200323] BPF userland misuse can crash the system

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Jul 30 14:42:55 UTC 2015


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200323

Luiz Otavio O Souza,+55 (14) 99772-1255 <loos at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
                 CC|                            |loos at FreeBSD.org
             Status|Closed                      |Open

--- Comment #19 from Luiz Otavio O Souza,+55 (14) 99772-1255 <loos at FreeBSD.org> ---
This is not completely correct, BPF must never sleep on the hot path.

The problem still happens, because BPF is sleeping with the NIC lock held.

I tracked this down to the changes introduced in r244090 and now I'm looking
for a better fix for it.

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