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| author | Lorenzo Bianconi <[email protected]> | 2019-04-06 15:16:52 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2019-04-08 23:16:47 +0000 |
| commit | 492b67e28ee5f2a2522fb72e3d3bcb990e461514 (patch) | |
| tree | 02486e4add5ae9176d978eeacc6463f5c52e9897 /tools/perf/scripts/python/stackcollapse.py | |
| parent | r8169: disable ASPM again (diff) | |
| download | kernel-492b67e28ee5f2a2522fb72e3d3bcb990e461514.tar.gz kernel-492b67e28ee5f2a2522fb72e3d3bcb990e461514.zip | |
net: ip_gre: fix possible use-after-free in erspan_rcv
erspan tunnels run __iptunnel_pull_header on received skbs to remove
gre and erspan headers. This can determine a possible use-after-free
accessing pkt_md pointer in erspan_rcv since the packet will be 'uncloned'
running pskb_expand_head if it is a cloned gso skb (e.g if the packet has
been sent though a veth device). Fix it resetting pkt_md pointer after
__iptunnel_pull_header
Fixes: 1d7e2ed22f8d ("net: erspan: refactor existing erspan code")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions