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| author | Michael S. Tsirkin <mst@redhat.com> | 2013-07-07 14:26:53 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-09 12:55:48 -0700 |
| commit | dd7633ecd553a5e304d349aa6f8eb8a0417098c5 (patch) | |
| tree | b78a356c1a5bef54e7ce20ca440e9c9159d818ac /drivers/char/generic_nvram.c | |
| parent | 785bf6f7904352242d187ff6087d523a4ce1b3ac (diff) | |
vhost-net: fix use-after-free in vhost_net_flush
vhost_net_ubuf_put_and_wait has a confusing name:
it will actually also free it's argument.
Thus since commit 1280c27f8e29acf4af2da914e80ec27c3dbd5c01
"vhost-net: flush outstanding DMAs on memory change"
vhost_net_flush tries to use the argument after passing it
to vhost_net_ubuf_put_and_wait, this results
in use after free.
To fix, don't free the argument in vhost_net_ubuf_put_and_wait,
add an new API for callers that want to free ubufs.
Acked-by: Asias He <asias@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/char/generic_nvram.c')
0 files changed, 0 insertions, 0 deletions