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Pål Hermunn Johansen authored
Even though the shared memory log should always have only one writer, the varnish process, this is not enforced by the kernel through access rights. For this reason, the line assert(b->vsc->vcls > 0); could crash Varnish if a process decided to write to the shared memory log. Now this bad behavior will just affect other readers of the shared memory log, and not the varnish process itself.
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