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Previously, we were relying on the fact that VALGRIND_MEMPOOL_FREE came later on in the function to prevent "link->bo = bo" from causing an invalid write. However, in the case where the size requested by the user is very small (less than sizeof(struct anv_bo)), this isn't sufficient. Instead, we should call VALGRIND_MEMPOOL_FREE early and then use VG_NOACCESS_WRITE. We do, however, have to call VALGRIND_MEMPOOL_FREE after reading bo_in because it may be stored in the bo itself. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> |
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