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Murray McAllister authored
commit 36274ab8 upstream. Before memory allocations vmw_surface_define_ioctl() checks the upper-bounds of a user-supplied size, but does not check if the supplied size is 0. Add check to avoid NULL pointer dereferences. Signed-off-by: Murray McAllister <murray.mcallister@insomniasec.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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