panic: runtime error: index out of range [314] with length 0

ioctl$TIOCL_PASTESEL(r1, 0x5412, &(0x7f0000001040))
03:23:46 executing program 1:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
r1 = dup(r0)
ioctl$TIOCL_PASTESEL(r1, 0x5412, &(0x7f0000001040))
panic: runtime error: index out of range [314] with length 0

goroutine 32 [running]:
github.com/google/syzkaller/prog.(*randGen).resourceCentric(0xc02c670fc0, 0xc02c64f130, 0xbd22e0, 0x2, 0x0, 0xc02cffe270, 0x8, 0x8, 0x1)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:854 +0x4b5
github.com/google/syzkaller/prog.(*ResourceType).generate(0xbd22e0, 0xc02c670fc0, 0xc02c64f130, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:677 +0x346
github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc02c670fc0, 0xc02c64f130, 0x9679c0, 0xbd22e0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:665 +0x40b
github.com/google/syzkaller/prog.(*randGen).generateArg(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:615
github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc02c670fc0, 0xc02c64f130, 0xe1bc40, 0x2, 0x2, 0x59c602, 0x413882, 0xc01800f558, 0x297441cf, 0xdd328a1ae1e9590e, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:603 +0x179
github.com/google/syzkaller/prog.(*StructType).generate(0xc6eee0, 0xc02c670fc0, 0xc02c64f130, 0x2, 0x1773d40, 0x0, 0xc0100d18c8, 0x1, 0x1)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:795 +0x7c
github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc02c670fc0, 0xc02c64f130, 0x967aa0, 0xc6eee0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:665 +0x40b
github.com/google/syzkaller/prog.(*randGen).generateArg(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:615
github.com/google/syzkaller/prog.(*ArrayType).generate(0xe17980, 0xc02c670fc0, 0xc02c64f130, 0x2, 0x964800, 0xc02c675ac0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:787 +0x177
github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc02c670fc0, 0xc02c64f130, 0x9671e0, 0xe17980, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:665 +0x40b
github.com/google/syzkaller/prog.(*randGen).generateArg(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:615
github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc02c670fc0, 0xc02c64f130, 0x114f9e0, 0x4, 0x4, 0x2, 0x413882, 0xc01800f958, 0x297441cf, 0x315825027804e2c0, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:603 +0x179
github.com/google/syzkaller/prog.(*StructType).generate(0xc6ee80, 0xc02c670fc0, 0xc02c64f130, 0x2, 0x1773d40, 0xc01800f990, 0x4eded3, 0xc002c72000, 0x46576c64cce74e2f)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:795 +0x7c
github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc02c670fc0, 0xc02c64f130, 0x967aa0, 0xc6ee80, 0x400002, 0x0, 0x0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:665 +0x40b
github.com/google/syzkaller/prog.(*randGen).generateArg(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:615
github.com/google/syzkaller/prog.(*PtrType).generate(0xc0c320, 0xc02c670fc0, 0xc02c64f130, 0x0, 0x964800, 0xc02c675ab0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:812 +0x127
github.com/google/syzkaller/prog.(*randGen).generateArgImpl(0xc02c670fc0, 0xc02c64f130, 0x9678e0, 0xc0c320, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:665 +0x40b
github.com/google/syzkaller/prog.(*randGen).generateArg(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:615
github.com/google/syzkaller/prog.(*randGen).generateArgs(0xc02c670fc0, 0xc02c64f130, 0xf8d5e0, 0x3, 0x3, 0x0, 0xc01800fc88, 0x4eded3, 0xc002c72000, 0x19f918472f7671c0, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:603 +0x179
github.com/google/syzkaller/prog.(*randGen).generateParticularCall(0xc02c670fc0, 0xc02c64f130, 0x1201da0, 0x253, 0xc02c64f130, 0xc02c676f80)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:558 +0xda
github.com/google/syzkaller/prog.(*randGen).generateCall(0xc02c670fc0, 0xc02c64f130, 0xc02c676100, 0x5, 0xc02c676100, 0x0, 0xc02c64f130)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/rand.go:547 +0x95
github.com/google/syzkaller/prog.(*mutator).insertCall(0xc01800fe18, 0x14)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:141 +0xfb
github.com/google/syzkaller/prog.(*Prog).Mutate(0xc02c676100, 0x961380, 0xc00cd22990, 0x14, 0xc01d08e680, 0xc01557c000, 0xa4d7, 0xc000)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:45 +0x2ee
main.(*Proc).smashInput(0xc01ba435c0, 0xc011828500)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:213 +0x133
main.(*Proc).loop(0xc01ba435c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0x1aa
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:280 +0x13f8