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(parent: e287968) | patch
net: Fix usage of pskb_trim_rcsum
authorRoss Lagerwall <ross.lagerwall@citrix.com>
Thu, 17 Jan 2019 15:34:38 +0000 (15:34 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 31 Jan 2019 07:14:31 +0000 (08:14 +0100)
commit40f2f08030fa59f634ed8313f4c9578416f2a108
tree4605da9a0ab26eab21f80c448c9ebd566ad139bbtree | snapshot
parente287968a3837458cd489bdfad7095bb5a10a61b6commit | diff
net: Fix usage of pskb_trim_rcsum

[ Upstream commit 6c57f0458022298e4da1729c67bd33ce41c14e7a ]

In certain cases, pskb_trim_rcsum() may change skb pointers.
Reinitialize header pointers afterwards to avoid potential
use-after-frees. Add a note in the documentation of
pskb_trim_rcsum(). Found by KASAN.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/ppp/pppoe.c diff | blob | history
include/linux/skbuff.h diff | blob | history
net/bridge/br_netfilter_ipv6.c diff | blob | history
net/bridge/netfilter/nft_reject_bridge.c diff | blob | history
net/ipv4/ip_input.c diff | blob | history