On Fri, Nov 30, 2018 at 08:17:04AM -0800, Eric Dumazet wrote: > On Fri, Nov 30, 2018 at 8:10 AM Dmitry Vyukov <dvyu...@google.com> wrote: > > > > On Fri, Nov 30, 2018 at 4:02 PM, Ido Schimmel <ido...@idosch.org> wrote: > > > On Fri, Nov 30, 2018 at 08:59:09AM -0700, David Ahern wrote: > > >> This does not repro for me: > > >> # ./a.out > > >> Invalid address length 6 - must be 4 bytes > > >> RTNETLINK answers: No buffer space available > > >> RTNETLINK answers: Operation not supported > > >> Invalid address length 6 - must be 4 bytes > > >> Invalid address length 6 - must be 4 bytes > > >> Invalid address length 6 - must be 4 bytes > > >> Invalid address length 6 - must be 16 bytes > > >> Invalid address length 6 - must be 16 bytes > > >> Invalid address length 6 - must be 16 bytes > > >> > > >> config available>? > > > > > > You need a kernel with kmsan. See: > > > https://github.com/google/kmsan > > > > > > Another option may be to spray memory at the allocation stack with > > some distinctive byte pattern and then check this pattern at the use > > stack. Not 100% sounds, but should be enough for testing. > > Well, no need for kmsan here, once you know the problem
Yes, agree. Patch is good. I'll tag your v2. Thanks!