golang/go

cmd/asm: index out of range

dvyukov opened this issue · 2 comments

dvyukov commented

cmd/asm crashes on the following program:

FUNCDATA

panic: runtime error: index out of range

goroutine 1 [running]:
cmd/asm/internal/asm.(*Parser).asmFuncData(0xc820043e80, 0xc820010720, 0x8, 0xc820043b40, 0x0, 0x3)
    src/cmd/asm/internal/asm/asm.go:289 +0x2cd
cmd/asm/internal/asm.(*Parser).pseudo(0xc820043e80, 0x7, 0xc820010720, 0x8, 0xc820043b40, 0x0, 0x3)
    src/cmd/asm/internal/asm/parse.go:220 +0xae
cmd/asm/internal/asm.(*Parser).line(0xc820043e80, 0xc82000a540)
    src/cmd/asm/internal/asm/parse.go:180 +0x9ac
cmd/asm/internal/asm.(*Parser).Parse(0xc820043e80, 0xc82000a540, 0xc820014750)
    src/cmd/asm/internal/asm/parse.go:81 +0x21
main.main()
    src/cmd/asm/main.go:59 +0xb39

go version devel +9b04852 Sat Jul 11 00:08:50 2015 +0000 linux/amd64

dvyukov commented

Similar one, but leads to nil deref:

FUNCDATA(SB

(there is a space at the end of line)

gopherbot commented

CL https://golang.org/cl/13925 mentions this issue.