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I am not an expert, as I said earlier, but after reading about this a bit, it looks like a call to setgroups(0, NULL) is typically used before calls to setgid(). See, for example, https://github.com/libuv/libuv/blob/abe4f3d58d1f89f7b9c3092a917486832ceff7a2/src/unix/process.c#L354-L373.

If you are sure this is not necessary in this case, please let me know and we will suppress this false-positive warning for our builds. Thanks for looking into this.

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