panic: runtime error: invalid memory address or nil pointer dereference [recovered] panic: runtime error: invalid memory address or nil pointer dereference target: freebsd/amd64, rev: 78494d166f1bbede620120c506ccd9f7878b05f9, mode=1, prog: "r0 = socket$inet(0x2, 0x5, 0x0)\nr1 = socket$inet_sctp(0x2, 0x5, 0x84)\nr2 = dup2(r1, r0)\nsendto$inet(r2, 0x0, 0x0, 0x0, &(0x7f0000000180)={0x10, 0x2, 0x2, @rand_addr=0x5}, 0x10)\nr3 = socket$inet(0x2, 0x5, 0x0)\nr4 = socket$inet_sctp(0x2, 0x5, 0x84)\nr5 = dup2(r4, r3)\nsendto$inet(r5, 0x0, 0x0, 0x0, &(0x7f0000000180)={0x10, 0x2, 0x2, @rand_addr=0x5}, 0x10)\ngetsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r5, 0x84, 0x105, &(0x7f0000000040)=ANY=[@ANYBLOB=\"01000052\", @ANYRES32=0x0], &(0x7f0000001700)=0x8)\ngetsockopt$inet6_sctp_SCTP_EVENT(r2, 0x84, 0x1e, &(0x7f0000000000)={r6, 0xc}, &(0x7f0000000140)=0x8)\n" [signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x5c04c7] goroutine 1 [running]: github.com/google/syzkaller/prog.(*Target).Deserialize.func1(0xc0000716c0, 0x1, 0xc00024cc80, 0x25c, 0x25c) /syzkaller/gopath/src/github.com/google/syzkaller/prog/encoding.go:237 +0x228 panic(0x8f70c0, 0x10354f0) /syzkaller/go/src/runtime/panic.go:969 +0x166 github.com/google/syzkaller/prog.(*parser).parseProg(0xc0000d3750, 0xffffffffffffffff, 0x82, 0xc00046b778) /syzkaller/gopath/src/github.com/google/syzkaller/prog/encoding.go:296 +0x447 github.com/google/syzkaller/prog.(*Target).Deserialize(0xc0000716c0, 0xc00024cc80, 0x25c, 0x25c, 0x1, 0x0, 0x0, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/prog/encoding.go:242 +0x177 main.(*Fuzzer).deserializeInput(0xc000071380, 0xc00024cc80, 0x25c, 0x25c, 0x30dcc6d2b2b54894) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:462 +0x69 main.(*Fuzzer).addInputFromAnotherFuzzer(0xc000071380, 0xc000098280, 0x20, 0xc00024cc80, 0x25c, 0x25c, 0xc000300d80, 0x10c, 0x10c, 0xc000320360, ...) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:434 +0x59 main.(*Fuzzer).poll(0xc000071380, 0x99e200, 0x0, 0xc0003ebe78) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:412 +0x427 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:267 +0x11d6 login: