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net: netem: fix issues with corrupting GSO frames
Corrupting GSO frames currently leads to crashes, due to skb use
after free. These stem from the skb list handling - the segmented
skbs come back on a list, and this list is not properly unlinked
before enqueuing the segments. Turns out this condition is made
very likely to occur because of another bug - in backlog accounting.
Segments are counted twice, which means qdisc's limit gets reached
leading to drops and making the use after free very likely to happen.
The bugs are fixed in order in which they were added to the tree.
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Signed-off-by: David S. Miller <davem@davemloft.net>
projects / users / jedix / linux-maple.git / commit