89e13c88e4
Currently there are a few sanity checks in the page allocator which should fail immediately but because it's a check for a negative number on a uint, it's actually dead-code. If there's a bug in the page allocator which would cause the sanity check to fail, this could cause memory corruption by returning an invalid address (more precisely, one might either see a segfault, or span overlap). This change fixes these sanity checks to check the correct condition. Fixes #38130. Change-Id: Ia19786cece783d39f26df24dec8788833a6a3f21 Reviewed-on: https://go-review.googlesource.com/c/go/+/226297 Reviewed-by: Giovanni Bajo <rasky@develer.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
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