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debug/dwarf: slice bounds out of range in SeekPC #55948

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catenacyber opened this issue Sep 29, 2022 · 2 comments
Closed

debug/dwarf: slice bounds out of range in SeekPC #55948

catenacyber opened this issue Sep 29, 2022 · 2 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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Backlog

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@catenacyber
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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?

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="go1.18.3"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/dev/null"
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/pp/dc1dtf9x2js3v0jx_m010nqr0000gn/T/go-build2205394633=/tmp/go-build -gno-record-gcc-switches -fno-common"
GOROOT/bin/go version: go version go1.18.3 darwin/amd64
GOROOT/bin/go tool compile -V: compile version go1.18.3
uname -v: Darwin Kernel Version 21.6.0: Mon Aug 22 20:17:10 PDT 2022; root:xnu-8020.140.49~2/RELEASE_X86_64
ProductName:	macOS
ProductVersion:	12.6
BuildVersion:	21G115
lldb --version: lldb-1400.0.30.3
Apple Swift version 5.7 (swiftlang-5.7.0.127.4 clang-1400.0.29.50)
gdb --version: GNU gdb (GDB) 12.1

What did you do?

Run https://go.dev/play/p/SenyOSlOg4u?v=gotip

What did you expect to see?

The program printing Hello

What did you see instead?

panic: runtime error: slice bounds out of range [-1:]

goroutine 1 [running]:
debug/dwarf.(*Data).dwarf2Ranges(0xc000002180?, 0xb?, 0x0?, 0x0?, {0x0?, 0x9c?, 0x9c?})
	/usr/local/go-faketime/src/debug/dwarf/entry.go:1110 +0x365
debug/dwarf.(*Data).Ranges(0xc000002180, 0xc000016360)
	/usr/local/go-faketime/src/debug/dwarf/entry.go:1069 +0x2fd
debug/dwarf.(*Reader).SeekPC(0xc000074ed8, 0x0)
	/usr/local/go-faketime/src/debug/dwarf/entry.go:981 +0x227
main.main()
	/tmp/sandbox721696693/prog.go:13 +0x339

Program exited.

Found by ngolo-fuzzing https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51961
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Sep 29, 2022
@dmitshur dmitshur added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 29, 2022
@dmitshur dmitshur added this to the Backlog milestone Sep 29, 2022
@dmitshur
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CC @golang/compiler.

@gopherbot
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Change https://go.dev/cl/436876 mentions this issue: debug/dwarf: don't crash on negative range/rnglist offset

@golang golang locked and limited conversation to collaborators Oct 1, 2023
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