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authorGuillaume Nault <g.nault@alphalink.fr>2017-03-31 13:02:26 +0200
committerDavid S. Miller <davem@davemloft.net>2017-04-02 05:16:41 +0200
commit57377d63547861919ee634b845c7caa38de4a452 (patch)
tree5e00b7be9f0d3abc3b0901662867aba202835c0a /net/rxrpc/Makefile
parentl2tp: fix race in l2tp_recv_common() (diff)
downloadlinux-57377d63547861919ee634b845c7caa38de4a452.tar.xz
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l2tp: ensure session can't get removed during pppol2tp_session_ioctl()
Holding a reference on session is required before calling pppol2tp_session_ioctl(). The session could get freed while processing the ioctl otherwise. Since pppol2tp_session_ioctl() uses the session's socket, we also need to take a reference on it in l2tp_session_get(). Fixes: fd558d186df2 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts") Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
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