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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2018-07-06 22:50:06 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2018-07-11 21:22:41 +0200 |
| commit | 498e8bf51c633cc4496343e6113f340f8e9301ae (patch) | |
| tree | 43bdf27e23afef2d4c07e184372a979c3910ef7d /samples/bpf/tcp_synrto_kern.c | |
| parent | Linux 4.18-rc4 (diff) | |
| download | linux-498e8bf51c633cc4496343e6113f340f8e9301ae.tar.xz linux-498e8bf51c633cc4496343e6113f340f8e9301ae.zip | |
sample: vfio-mdev: avoid deadlock in mdev_access()
mdev_access() calls mbochs_get_page() with mdev_state->ops_lock held,
while mbochs_get_page() locks the mutex by itself.
It leads to unavoidable deadlock.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'samples/bpf/tcp_synrto_kern.c')
0 files changed, 0 insertions, 0 deletions