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net: mvneta: fix possible use-after-free in mvneta_xdp_put_buff
authorLorenzo Bianconi <lorenzo@kernel.org>
Thu, 10 Sep 2020 09:08:01 +0000 (11:08 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 10 Sep 2020 22:03:49 +0000 (15:03 -0700)
commit9d3b2d3e4942cb82630f0d638de4b2253c0af56d
tree4c0a9b1f46a0406d52e89652547bc1fb236e7bcctree
parent5bf490e6807bf56f49b5991b4be817407dd32656commit | diff
net: mvneta: fix possible use-after-free in mvneta_xdp_put_buff

Release first buffer as last one since it contains references
to subsequent fragments. This code will be optimized introducing
multi-buffer bit in xdp_buff structure.

Fixes: ca0e014609f05 ("net: mvneta: move skb build after descriptors processing")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/marvell/mvneta.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)