$GTP_CMD_GETPDP(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x54, r4, 0x4, 0x70bd2b, 0x25dfdbfc, {}, [@GTPA_TID={0xc}, @GTPA_I_TEI={0x8, 0x8, 0x4}, @GTPA_NET_NS_FD={0x8, 0x7, r6}, @GTPA_I_TEI={0x8, 0x8, 0x3}, @GTPA_O_TEI={0x8, 0x9, 0x2}, @GTPA_TID={0xc, 0x3, 0x1}, @GTPA_I_TEI={0x8}]}, 0x54}, 0x1, 0x0, 0x0, 0x1}, 0x4000810)
r7 = ioctl$KVM_CREATE_VCPU(r3, 0xae41, 0x0)
ioctl$KVM_SET_VCPU_EVENTS(r7, 0x8040ae9f, &(0x7f0000000040))
panic: replaceArg: group fields don't match: 0/3

goroutine 25 [running]:
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0279758a0?}, {0xe56770?, 0xc027975ba0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:377 +0x425
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc027975820?}, {0xe56770?, 0xc027975b20?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc027975800?}, {0xe56770?, 0xc027975b00?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc0279757a0?}, {0xe56770?, 0xc027975ae0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc027975760?}, {0xe56770?, 0xc027975a20?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc027975740?}, {0xe56770?, 0xc027975a00?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc027975720?}, {0xe56770?, 0xc0279759e0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc027975700?}, {0xe56770?, 0xc0279759a0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.(*StructType).mutate(0x16d44a0, 0xc0279758e0, 0xc0322ace60, {0xe56770, 0xc0279756e0?}, {0xc0322acd78, {0x1db72e0, 0x4, 0x4}, 0xc02273b080, ...})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:490 +0x185
github.com/google/syzkaller/prog.(*Target).mutateArg(0x7fcd38075c58?, 0x7fcd80c815b8?, 0x10?, {0xe56770, 0xc0279756e0}, {0xc0322acd78, {0x1db72e0, 0x4, 0x4}, 0xc02273b080, ...}, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:245 +0xe2
github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc003d13e48)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:196 +0x245
github.com/google/syzkaller/prog.(*Prog).Mutate(0xc0240cc6c0, {0xe52aa8?, 0xc028054060}, 0x1e, 0xc023582040, 0xc000088870, {0xc025000000, 0x10a4a, 0x11000})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:51 +0x2ba
main.(*Proc).loop(0xc0235825c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:95 +0x365
created by main.main in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:336 +0x1665