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cmd/go: segfault on go mod tidy -e #53461

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smowton opened this issue Jun 20, 2022 · 3 comments
Closed

cmd/go: segfault on go mod tidy -e #53461

smowton opened this issue Jun 20, 2022 · 3 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@smowton
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smowton commented Jun 20, 2022 •
edited

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

$ go version
go version go1.18.3 darwin/amd64

Does this issue reproduce with the latest release?

Yes

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

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/chris/Library/Caches/go-build"
GOENV="/Users/chris/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/chris/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/chris/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.18.3"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/tmp/secretless-broker/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 -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/qf/lz68g8yn69xfxtdgmhs1lx_80000gn/T/go-build3273412121=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

git clone https://github.com/cyberark/secretless-broker
git checkout 9e5c440ff94c9f8f4cc5b93058936b759ba7c224 # As of now this is the tip of 'main'
cd secretless-broker && go mod tidy -e

What did you expect to see?

Not a segfault

What did you see instead?

...
go: github.com/cyberark/conjur-authn-k8s-client@v0.23.5: parsing go.mod: go.mod:14:2: require github.com/cyberark/conjur-opentelemetry-tracer: version "latest" invalid: must be of the form v1.2.3
go: github.com/cyberark/conjur-authn-k8s-client@v0.23.5: parsing go.mod: go.mod:14:2: require github.com/cyberark/conjur-opentelemetry-tracer: version "latest" invalid: must be of the form v1.2.3
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x13fe66b]

goroutine 1 [running]:
cmd/go/internal/modload.loadFromRoots({0x16dcb38, 0xc000122000}, {{{0x0, 0x0}, 0xc0001c6060, 0x1, {0x0, 0x0}, 0x1, 0x1, ...}, ...})
	/usr/local/go/src/cmd/go/internal/modload/load.go:1183 +0xa6b
cmd/go/internal/modload.LoadPackages({0x16dcb38?, 0xc000122000}, {{0x0, 0x0}, 0xc0001c6060, 0x1, {0x0, 0x0}, 0x1, 0x1, ...}, ...)
	/usr/local/go/src/cmd/go/internal/modload/load.go:343 +0x308
cmd/go/internal/modcmd.runTidy({0x16dcb38, 0xc000122000}, 0xc00013c3f0?, {0xc00013e030?, 0x4?, 0x2?})
	/usr/local/go/src/cmd/go/internal/modcmd/tidy.go:114 +0x198
main.invoke(0x19bb520, {0xc00013e020, 0x2, 0x2})
	/usr/local/go/src/cmd/go/main.go:218 +0x2ee
main.main()
	/usr/local/go/src/cmd/go/main.go:175 +0x78e
@dmitshur dmitshur changed the title Segfault on go mod tidy -e cmd/go: segfault on go mod tidy -e Jun 20, 2022
@gregory-m
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I have short reproducer without using external repo:

gregory@Gregorys-MBP  ~/Documents/my/mod-test
⇢ $ ls -la  
total 16
drwxr-xr-x   4 gregory  staff  128 20 Jun 19:34 .
drwxr-xr-x  28 gregory  staff  896 20 Jun 19:32 ..
-rw-r--r--   1 gregory  staff  126 20 Jun 19:33 go.mod
-rw-r--r--   1 gregory  staff  110 20 Jun 19:34 main.go

gregory@Gregorys-MBP  ~/Documents/my/mod-test
⇢ $ cat go.mod
go 1.18

module github.com/gregory-m/mod-test

require (

)

require (
	github.com/cyberark/conjur-authn-k8s-client latest
)

gregory@Gregorys-MBP  ~/Documents/my/mod-test
⇢ $ cat main.go
package main

import (
	 "github.com/cyberark/conjur-authn-k8s-client/pkg/authenticator"
)


func main() {

}

gregory@Gregorys-MBP  ~/Documents/my/mod-test
⇢ $ go mod tidy -e
go: github.com/cyberark/conjur-authn-k8s-client@v0.23.5: parsing go.mod: go.mod:14:2: require github.com/cyberark/conjur-opentelemetry-tracer: version "latest" invalid: must be of the form v1.2.3
go: github.com/cyberark/conjur-authn-k8s-client@v0.23.5: parsing go.mod: go.mod:14:2: require github.com/cyberark/conjur-opentelemetry-tracer: version "latest" invalid: must be of the form v1.2.3
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x13fe56b]

goroutine 1 [running]:
cmd/go/internal/modload.loadFromRoots({0x16dca98, 0xc0000a2000}, {{{0x0, 0x0}, 0xc0001c4060, 0x1, {0x0, 0x0}, 0x1, 0x1, ...}, ...})
	/usr/local/Cellar/go/1.18.3/libexec/src/cmd/go/internal/modload/load.go:1183 +0xa6b
cmd/go/internal/modload.LoadPackages({0x16dca98?, 0xc0000a2000}, {{0x0, 0x0}, 0xc0001c4060, 0x1, {0x0, 0x0}, 0x1, 0x1, ...}, ...)
	/usr/local/Cellar/go/1.18.3/libexec/src/cmd/go/internal/modload/load.go:343 +0x308
cmd/go/internal/modcmd.runTidy({0x16dca98, 0xc0000a2000}, 0xc0000d0438?, {0xc0000be030?, 0x4?, 0x2?})
	/usr/local/Cellar/go/1.18.3/libexec/src/cmd/go/internal/modcmd/tidy.go:114 +0x198
main.invoke(0x19bf520, {0xc0000be020, 0x2, 0x2})
	/usr/local/Cellar/go/1.18.3/libexec/src/cmd/go/main.go:218 +0x2ee
main.main()
	/usr/local/Cellar/go/1.18.3/libexec/src/cmd/go/main.go:175 +0x78e

@cagedmantis cagedmantis added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Jun 23, 2022
@cagedmantis cagedmantis added this to the Backlog milestone Jun 23, 2022
@cagedmantis
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/cc @bcmills @matloob

@bcmills bcmills marked this as a duplicate of #51589 Jul 7, 2022
@bcmills bcmills closed this as completed Jul 7, 2022
@bcmills bcmills marked this as not a duplicate of #51589 Jul 7, 2022
@bcmills bcmills closed this as not planned Won't fix, can't repro, duplicate, stale Jul 7, 2022
@bcmills
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bcmills commented Jul 7, 2022

Duplicate of #51589

@bcmills bcmills marked this as a duplicate of #51589 Jul 7, 2022
@golang golang locked and limited conversation to collaborators Jul 7, 2023
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