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debug/dwarf: slice bounds out of range in SeekPC #53529

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catenacyber opened this issue Jun 24, 2022 · 0 comments
Open

debug/dwarf: slice bounds out of range in SeekPC #53529

catenacyber opened this issue Jun 24, 2022 · 0 comments
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compiler/runtime Debugging NeedsInvestigation
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@catenacyber
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@catenacyber catenacyber commented Jun 24, 2022

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

$ go version
go version go1.17.6 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/catena/Library/Caches/go-build"
GOENV="/Users/catena/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/catena/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/catena/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="go1.17.6"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/catena/go/src/github.com/catenacyber/go/src/go.mod"
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/pp/dc1dtf9x2js3v0jx_m010nqr0000gn/T/go-build4237848497=/tmp/go-build -gno-record-gcc-switches -fno-common"
GOROOT/bin/go version: go version go1.17.6 darwin/amd64
GOROOT/bin/go tool compile -V: compile version go1.17.6
uname -v: Darwin Kernel Version 21.3.0: Wed Jan  5 21:37:58 PST 2022; root:xnu-8019.80.24~20/RELEASE_X86_64
ProductName:	macOS
ProductVersion:	12.2.1
BuildVersion:	21D62
lldb --version: lldb-1316.0.9.41
Apple Swift version 5.6 (swiftlang-5.6.0.323.62 clang-1316.0.20.8)
gdb --version: GNU gdb (GDB) 9.1

What did you do?

Run https://go.dev/play/p/6Q5K-w2M44u

What did you expect to see?

The program finishing and printing Hello

What did you see instead?

panic: runtime error: slice bounds out of range [93:2]

goroutine 1 [running]:
debug/dwarf.(*Data).dwarf2Ranges(0xc000146000?, 0xc00000000b?, 0x0?, 0x56b2e8?, {0x0?, 0x56b2e8?, 0x4a747e?})
	/usr/local/go-faketime/src/debug/dwarf/entry.go:1106 +0x2b0
debug/dwarf.(*Data).Ranges(0xc000146000, 0xc00010c300)
	/usr/local/go-faketime/src/debug/dwarf/entry.go:1068 +0x2b7
debug/dwarf.(*Reader).SeekPC(0xc000106ed8, 0x0)
	/usr/local/go-faketime/src/debug/dwarf/entry.go:980 +0x217
main.main()
	/tmp/sandbox3316957379/prog.go:13 +0x1f9

Program exited.

Found by https://github.com/catenacyber/ngolo-fuzzing on oss-fuzz
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48242

cc @thanm (thanks for the continuous fixes by the way)

@mengzhuo mengzhuo added the NeedsInvestigation label Jun 24, 2022
@ianlancetaylor ianlancetaylor added this to the Go1.20 milestone Jun 24, 2022
@gopherbot gopherbot added the compiler/runtime label Jul 13, 2022
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Labels
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