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https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Andrei VaginandgVisor bot
8890371e35
The user-space bluepill introduced the issue. With that change, we use a per-vcpu stack to run bluepillHandler. BluepillHanlder releases a vcpu before calling sigreturn, so it is still running on the vcpu stack. The race looks like this: one thread releases a vcpu, another thread takes it and starts using its stack, the first thread calls sigreturn with a corrupted signal frame.  PiperOrigin-RevId: 684992950
39 lines
837 B
Python
39 lines
837 B
Python
load("//tools:defs.bzl", "go_library", "go_test")
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package(default_applicable_licenses = ["//:license"])
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licenses(["notice"])
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go_library(
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name = "sigframe",
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srcs = [
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"sigframe.go",
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"sigframe_amd64.s",
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"sigframe_amd64_unsafe.go",
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],
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visibility = ["//visibility:public"],
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deps = [
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"//pkg/abi/linux",
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"//pkg/hostarch",
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"//pkg/hostsyscall",
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"//pkg/sentry/arch",
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"@org_golang_x_sys//unix:go_default_library",
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],
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)
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go_test(
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name = "sigframe_test",
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srcs = [
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"sigframe_amd64_test.go",
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"sigframe_amd64_test.s",
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"sigframe_test.go",
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],
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library = ":sigframe",
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deps = [
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"//pkg/abi/linux",
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"//pkg/hostarch",
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"//pkg/sentry/arch",
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"@org_golang_x_sys//unix:go_default_library",
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],
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)
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