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| author | Rob Clark <robdclark@chromium.org> | 2023-01-19 09:32:58 -0800 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2023-01-27 13:44:27 +0000 |
| commit | 99343c46d4e2b34c285d3d5f68ff04274c2f9fb4 (patch) | |
| tree | 2197fac01824ea2d0c7cf88ac7bceed0113fcd32 /tools/perf/scripts/python | |
| parent | drm/i915/xehp: Annotate a couple more workaround registers as MCR (diff) | |
| download | linux-99343c46d4e2b34c285d3d5f68ff04274c2f9fb4.tar.gz linux-99343c46d4e2b34c285d3d5f68ff04274c2f9fb4.zip | |
drm/i915: Avoid potential vm use-after-free
Adding the vm to the vm_xa table makes it visible to userspace, which
could try to race with us to close the vm. So we need to take our extra
reference before putting it in the table.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Fixes: 9ec8795e7d91 ("drm/i915: Drop __rcu from gem_context->vm")
Cc: <stable@vger.kernel.org> # v5.16+
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230119173321.2825472-1-robdclark@gmail.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions