bufio: panic when write to file use bufio #70025
Description
Go version
go version go1.23.1 windows/amd64
Output of go env in your module/workspace:
set GO111MODULE=on
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\x\AppData\Local\go-build
set GOENV=C:\Users\x\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=D:\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=D:\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.com.cn,direct
set GOROOT=D:\Program Files\Go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=D:\Program Files\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.23.1
set GODEBUG=
set GOTELEMETRY=local
set GOTELEMETRYDIR=C:\Users\x\AppData\Roaming\go\telemetry
set GCCGO=gccgo
set GOAMD64=v1
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=xxx -gno-record-gcc-switchesWhat did you do?
write to file use writer.Write
_, err := c.writer.Write(message)
What did you see happen?
panic: runtime error: slice bounds out of range [:4124] with capacity 4096
goroutine 40723 [running]:
bufio.(*Writer).Flush(0x69cd7c?)
/data/software/go1.20.5/src/bufio/bufio.go:628 +0x185
bufio.(*Writer).Write(0xc0002b1b80, {0xc000183000?, 0xc0002e5bb8?, 0x6?})
/data/software/go1.20.5/src/bufio/bufio.go:672 +0xd0
rgs/record.(*RecordClient).WriteToFile(0xc00069c930, 0x2, {0xc000183000, 0xcaf, 0x1000})
What did you expect to see?
wite to file