r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='memory.events\x00', 0x275a, 0x0)
fsetxattr$security_ima(r0, &(0x7f0000000400), 0x0, 0x0, 0x0)
00:10:33 executing program 4:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='memory.events\x00', 0x275a, 0x0)
fsetxattr$security_ima(r0, &(0x7f0000000400), 0x0, 0x0, 0x0)
panic: replaceArg: group fields don't match: 0/1

goroutine 12 [running]:
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0b520?}, {0x9fabc8?, 0x401a0b5860?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:377 +0x3fc
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0b480?}, {0x9fabc8?, 0x401a0b5480?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0b3a0?}, {0x9fabc8?, 0x401a0b52a0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0af80?}, {0x9fabc8?, 0x401a0b4da0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0aea0?}, {0x9fabc8?, 0x401a0b4d00?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0ad20?}, {0x9fabc8?, 0x401a0b4cc0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0ad00?}, {0x9fabc8?, 0x401a0b4ae0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.replaceArg({0x9fabc8?, 0x4019c0aca0?}, {0x9fabc8?, 0x401a0b4a20?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x328
github.com/google/syzkaller/prog.(*StructType).mutate(0x1251ae0, 0x4019c0ba20, 0x40173f9b30, {0x9fabc8, 0x4019c0a8c0?}, {0x40173f9ae8, {0x1914440, 0x4, 0x4}, 0x4013f8ba70, ...})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:490 +0x170
github.com/google/syzkaller/prog.(*Target).mutateArg(0x4003988b00?, 0x4013f8bad0?, 0x1024?, {0x9fabc8, 0x4019c0a8c0}, {0x40173f9ae8, {0x1914440, 0x4, 0x4}, 0x4013f8ba70, ...}, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:245 +0xc0
github.com/google/syzkaller/prog.(*mutator).mutateArg(0x40020cdd48)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:196 +0x1f4
github.com/google/syzkaller/prog.(*Prog).Mutate(0x40232a0480, {0x9f6e48?, 0x4023362ab0}, 0x1e, 0x40231fa000, 0x400009b8f0, {0x400439a000, 0xfca1, 0x11000})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:51 +0x224
main.(*Proc).smashInput(0x401d9783c0, 0x40117d1440)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:221 +0x10c
main.(*Proc).loop(0x401d9783c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0xf4
created by main.main in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:336 +0x1288