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cmd/compile/internal/noder: index out of range #49611

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johejo opened this issue Nov 16, 2021 · 2 comments
Closed

cmd/compile/internal/noder: index out of range #49611

johejo opened this issue Nov 16, 2021 · 2 comments
Labels
FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done.
Milestone
Go1.18

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@johejo
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johejo commented Nov 16, 2021

What version of Go are you using (go version)?

$ go version
go version devel go1.18-6e481c0b36 Tue Nov 16 08:58:05 2021 +0000 linux/amd64

Does this issue reproduce with the latest release?

No, tip only.

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/johejo/.cache/go-build"
GOENV="/home/johejo/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/johejo/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/johejo/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/johejo/ghq/github.com/golang/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/johejo/ghq/github.com/golang/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="devel go1.18-6e481c0b36 Tue Nov 16 08:58:05 2021 +0000"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/johejo/ghq/github.com/cilium/cilium/go.mod"
GOWORK=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build326379352=/tmp/go-build -gno-record-gcc-switches"

What did you do?

git clone https://github.com/clium/cilium.git
cd cilium/
go build ./...

What did you expect to see?

build succeeds

What did you see instead?

paniced

# github.com/cilium/cilium/api/v1/client/daemon
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc000314480, {0xe88930?, 0xc0003e5ce0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc000be4c40?, {0xc0003e8b60?, 0x2, 0xc0008ed648?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc000314480, 0xc000bea000, 0xc0004397a0?, 0xc0003ea240, 0xc0003ea2c0)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc000314480, {0xc0000ea500, 0xf, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc0000ea500, 0xf, 0xf})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc0000bc100, 0xf, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd
# github.com/cilium/cilium/api/v1/client/endpoint
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc00039e0c0, {0xe88930?, 0xc000095aa0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc000d3d810?, {0xc00050a560?, 0x2, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc00039e0c0, 0xc000d1c420, 0xc000a72f50?, 0xc0000b9d80, 0xc0000b9e00)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc00039e0c0, {0xc00039e300, 0x17, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc00039e300, 0x17, 0x17})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc0000ba100, 0x17, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd
# github.com/cilium/cilium/api/v1/client/ipam
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc00015c540, {0xe88930?, 0xc0000941e0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc00099f340?, {0xc0003e9de0?, 0x2, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc00015c540, 0xc00097f600, 0xc00084cd20?, 0xc000113900, 0xc000113980)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc00015c540, {0xc000113780, 0x7, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc000113780, 0x7, 0x7})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc00001e280, 0x7, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd
# github.com/cilium/cilium/api/v1/client/policy
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc0006f80c0, {0xe88930?, 0xc00007c540?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc0009c9260?, {0xc00003b6c0?, 0x2, 0xcddbe0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc0006f80c0, 0xc00074d080, 0xc000af5ce0?, 0xc00014ac80, 0xc00014ad00)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc0006f80c0, {0xc000432000, 0x1b, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc000432000, 0x1b, 0x1b})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc00001e3c0, 0x1b, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd
# github.com/cilium/cilium/api/v1/client/prefilter
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc000334480, {0xe88930?, 0xc00007ce70?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc00039a0e0?, {0xc00003b5e0?, 0x2, 0xcddbe0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc000334480, 0xc0008fd340, 0xc000847340?, 0xc000483340, 0xc0004833c0)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc000334480, {0xc000327680, 0x7, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc000327680, 0x7, 0x7})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc0000ba100, 0x7, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd
# github.com/cilium/cilium/api/v1/client/recorder
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc00033c3c0, {0xe88930?, 0xc0004db410?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc000ab56c0?, {0xc0004dd5c0?, 0x2, 0xcddbe0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc00033c3c0, 0xc000a86dc0, 0xc00038b500?, 0xc0004d7dc0, 0xc0004d7e40)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc00033c3c0, {0xc0000b7920, 0xb, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc0000b7920, 0xb, 0xb})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc0000ba100, 0xb, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd
# github.com/cilium/cilium/api/v1/client/service
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).stmt(0xc000396540, {0xe88930?, 0xc00045cea0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:49 +0x1075
cmd/compile/internal/noder.(*irgen).stmts(0xc000a69180?, {0xc0000fa140?, 0x2, 0xcddbe0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/stmt.go:19 +0xaf
cmd/compile/internal/noder.(*irgen).funcBody(0xc000396540, 0xc000a542c0, 0xc00087a3f0?, 0xc0000fc240, 0xc0000fc2c0)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/func.go:45 +0x25f
cmd/compile/internal/noder.(*irgen).funcDecl.func1()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/decl.go:143 +0xf5
cmd/compile/internal/noder.(*irgen).generate(0xc000396540, {0xc000071920, 0xb, 0x203000?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:280 +0x227
cmd/compile/internal/noder.check2({0xc000071920, 0xb, 0xb})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/irgen.go:92 +0x16d
cmd/compile/internal/noder.LoadPackage({0xc0000bc100, 0xb, 0x0?})
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/noder/noder.go:90 +0x335
cmd/compile/internal/gc.Main(0xd46330)
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/internal/gc/main.go:191 +0xb13
main.main()
        /home/johejo/ghq/github.com/golang/go/src/cmd/compile/main.go:55 +0xdd

Other reproductions

related #47631
560dc97
@cuonglm
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cuonglm commented Nov 16, 2021 •
edited

Minimal reproducer:

package p

func f() {
	var ()
}

@cuonglm cuonglm added the NeedsFix The path to resolution is known, but the work has not been done. label Nov 16, 2021
@cuonglm cuonglm added this to the Go1.18 milestone Nov 16, 2021
@gopherbot
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Change https://golang.org/cl/364314 mentions this issue: cmd/compile: prevent irgen crashing for empty local declaration stmt

@golang golang locked and limited conversation to collaborators Nov 16, 2022
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