RESULT: signal 0, coverage 0 errno 0
RESULT: signal 0, coverage 0 errno 0
RESULT: signal 0, coverage 0 errno 0
RESULT: signal 0, coverage 0 errno 0
RESULT: signal 0, coverage 0 errno 0
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x58 pc=0x4da027]

goroutine 18 [running]:
github.com/google/syzkaller/prog.findCsummedArg(0x65cdc0, 0x982ea0, 0x0, 0xc000283370, 0x1, 0x1020280)
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/prog/checksum.go:83 +0x37
github.com/google/syzkaller/prog.calcChecksumsCall(0xc00005a6c0, 0xffffffffffffffff)
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/prog/checksum.go:136 +0x236
github.com/google/syzkaller/prog.(*Prog).SerializeForExec(0xc000345620, 0x7f6a1d456000, 0x200000, 0x200000, 0xc0002839d8, 0x46ad6c, 0x872520)
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:72 +0x237
github.com/google/syzkaller/pkg/ipc.(*Env).Exec(0xc000090800, 0xc000018140, 0xc000345620, 0x4c8d97c0, 0xc000283cc8, 0x3, 0x3, 0x25, 0x0, 0x0, ...)
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:308 +0x82
main.main.func1.1(0xc000073f00, 0xc0000163b8, 0xc000016400, 0xc000345600, 0xc00000da40, 0xc000018140, 0xc0000163e0, 0x1, 0xc000090800, 0xc0000580c0, ...)
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:154 +0x3df
main.main.func1(0xc0000163d0, 0xc0001cbb60, 0x1, 0xc000073f00, 0xc0000163b8, 0xc000016400, 0xc000345600, 0xc00000da40, 0xc000018140, 0xc0000163e0, ...)
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:218 +0x1a2
created by main.main
	/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:110 +0x925
[