000680)={0x2, 0x4, 0x7fffffff, 0x4}, 0x10, 0x0, 0x0, 0x6, &(0x7f0000000ac0)=[r8, r9, r10, r11, r12, r13], &(0x7f0000000b00)=[{0x0, 0x4, 0x3}, {0x3, 0x1, 0xe, 0x9}, {0x3, 0x3, 0xff, 0xa}, {0x2, 0x5, 0xd, 0x7}, {0x5, 0x3, 0xd, 0x2}, {0x2, 0x5, 0x10, 0x6}], 0x10, 0x2bd}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000bc0)={&(0x7f0000000040)='kmem_cache_free\x00', r0}, 0x10)
open_tree(0xffffffffffffff9c, &(0x7f0000000100)='.\x00', 0x0)
panic: replaceArg: group fields don't match: 1/0

goroutine 24 [running]:
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db880?}, {0xe56770?, 0xc017532220?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:377 +0x425
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db8a0?}, {0xe56770?, 0xc0175321a0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db8c0?}, {0xe56770?, 0xc017532120?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db8e0?}, {0xe56770?, 0xc017532100?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db900?}, {0xe56770?, 0xc0175320e0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db920?}, {0xe56770?, 0xc0175320c0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db940?}, {0xe56770?, 0xc0175320a0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db960?}, {0xe56770?, 0xc017532080?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0171db980?}, {0xe56770?, 0xc017532060?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.(*StructType).mutate(0x16d4620, 0xc0171db760, 0xc017508550, {0xe56770, 0xc0171db9a0?}, {0xc017508378, {0x1db7580, 0x4, 0x4}, 0xc01750e660, ...})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:490 +0x185
github.com/google/syzkaller/prog.(*Target).mutateArg(0x0?, 0x7fdc7ceae5b8?, 0x10?, {0xe56770, 0xc0171db9a0}, {0xc017508378, {0x1db7580, 0x4, 0x4}, 0xc01750e660, ...}, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:245 +0xe2
github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc02fcd1d60)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:196 +0x245
github.com/google/syzkaller/prog.(*Prog).Mutate(0xc029ef4080, {0xe52aa8?, 0xc028e0c300}, 0x1e, 0xc01fd662c0, 0xc000094840, {0xc0227f6000, 0x1035d, 0x11000})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:51 +0x2ba
main.(*Proc).smashInput(0xc01fd66300, 0xc005e96680)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:221 +0x165
main.(*Proc).loop(0xc01fd66300)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0xf2
created by main.main in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:336 +0x1665