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| author | Maxim Mikityanskiy <maximmi@mellanox.com> | 2019-03-15 17:41:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-02 11:02:57 +0300 |
| commit | c01e42fdccf5880b3ecb6bd8a8eaa8b24d17526a (patch) | |
| tree | 161ca56357b160a754938f9dd41df418a68f11a2 /lib/test_overflow.c | |
| parent | f9444b6aaa011c03a76d3486a18e270deb5f3501 (diff) | |
| download | linux-c01e42fdccf5880b3ecb6bd8a8eaa8b24d17526a.tar.xz | |
net/mlx5e: Fix use-after-free after xdp_return_frame
[ Upstream commit 12fc512f5741443a03adde2ead20724da8ad550a ]
xdp_return_frame releases the frame. It leads to releasing the page, so
it's not allowed to access xdpi.xdpf->len after that, because xdpi.xdpf
is at xdp->data_hard_start after convert_to_xdp_frame. This patch moves
the memory access to precede the return of the frame.
Fixes: 58b99ee3e3ebe ("net/mlx5e: Add support for XDP_REDIRECT in device-out side")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions