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| author |   claudio <claudio@openbsd.org> | 2020-06-22 09:45:13 +0000 |
|---|---|---|
| committer | claudio <claudio@openbsd.org> | 2020-06-22 09:45:13 +0000 |
| commit | 2646c3b95731d186ec4b1bff5cd3c1458c6f5139 (patch) | |
| tree | 5b4752cdc95dd0c52844b47c4d2cea13338c5a6a /sys/dev/pci/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | gup: document and work around "COW can break either way" issue (diff) | |
| download | wireguard-openbsd-2646c3b95731d186ec4b1bff5cd3c1458c6f5139.tar.xz wireguard-openbsd-2646c3b95731d186ec4b1bff5cd3c1458c6f5139.zip | |
The interface if_ioctl routine must be called with the NET_LOCK() held.
For example the bridge_ioctl() function calls NET_UNLOCK() unconditionally
and so calling if_ioctl() without netlock will trigger an assert because
of not holding the netlock. Make sure the ioctl handlers are called with
the netlock held and drop the lock for the wg(4) specific ioctls in the
wg_ioctl handler. This fixes a panic in bridge_ioctl() triggered by
ifconfig(8) issuing a SIOCGWG ioctl against bridge(4).
This is just a workaround this needs more cleanup but at least this way
the panic can not be triggered anymore.
OK stsp@, tested by semarie@
Diffstat (limited to 'sys/dev/pci/drm/amd/amdgpu/amdgpu_gem.c')
0 files changed, 0 insertions, 0 deletions