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Date: Sat, 30 May 2020 21:57:47 -0700 (PDT) From: David Miller <davem@...emloft.net> To: edumazet@...gle.com Cc: netdev@...r.kernel.org, eric.dumazet@...il.com, jchapman@...alix.com, gnault@...hat.com, syzkaller@...glegroups.com Subject: Re: [PATCH net] l2tp: add sk_family checks to l2tp_validate_socket From: Eric Dumazet <edumazet@...gle.com> Date: Fri, 29 May 2020 11:32:25 -0700 > syzbot was able to trigger a crash after using an ISDN socket > and fool l2tp. > > Fix this by making sure the UDP socket is of the proper family. ... > Fixes: 6b9f34239b00 ("l2tp: fix races in tunnel creation") > Fixes: fd558d186df2 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts") > Signed-off-by: Eric Dumazet <edumazet@...gle.com> > Cc: James Chapman <jchapman@...alix.com> > Cc: Guillaume Nault <gnault@...hat.com> > Reported-by: syzbot <syzkaller@...glegroups.com> Applied and queued up for -stable, thanks.
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