ioctl$BTRFS_IOC_QGROUP_ASSIGN(r0, 0x40189429, &(0x7f0000000080)={0x1, 0x4, 0x2}) (async)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
tee(r3, r3, 0x3, 0x0)
panic: replaceArg: group fields don't match: 1/0

goroutine 29 [running]:
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfad40?}, {0xe56770?, 0xc006cfb6c0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:377 +0x425
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfad00?}, {0xe56770?, 0xc006cfb680?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cface0?}, {0xe56770?, 0xc006cfb660?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfacc0?}, {0xe56770?, 0xc006cfb640?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfaca0?}, {0xe56770?, 0xc006cfb620?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfac80?}, {0xe56770?, 0xc006cfb600?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfac60?}, {0xe56770?, 0xc006cfb5e0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc006cfac40?}, {0xe56770?, 0xc006cfb5c0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.(*StructType).mutate(0x16d44a0, 0xc006cfade0, 0xc027797400, {0xe56770, 0xc006cfac20?}, {0xc027797228, {0x1db72e0, 0x4, 0x4}, 0xc01ba2ec60, ...})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:490 +0x185
github.com/google/syzkaller/prog.(*Target).mutateArg(0x0?, 0xc020a70720?, 0xc0337bfce0?, {0xe56770, 0xc006cfac20}, {0xc027797228, {0x1db72e0, 0x4, 0x4}, 0xc01ba2ec60, ...}, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:245 +0xe2
github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc0337bfd60)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:196 +0x245
github.com/google/syzkaller/prog.(*Prog).Mutate(0xc024349440, {0xe52aa8?, 0xc01e8b2cc0}, 0x1e, 0xc01a7ca380, 0xc00007e870, {0xc010248000, 0xdba7, 0x11000})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:51 +0x2ba
main.(*Proc).smashInput(0xc01a7ca3c0, 0xc024762e40)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:221 +0x165
main.(*Proc).loop(0xc01a7ca3c0)
	/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