SIGSEGV: segmentation violation PC=0x39e5c m=4 sigcode=1 addr=0x4 goroutine 0 gp=0xc0000036c0 m=4 mp=0xc0000d7808 [idle]: goroutine 1 gp=0xc0000021c0 m=nil [runnable]: gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*protocolRWMutex).Lock(0xc0001f0128) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol_mutex.go:30 +0x160 fp=0xc0001536d0 sp=0xc0001536d0 pc=0xee0390 gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*protocol).SetOption(0xc0001f0120, {0x1fd8460, 0xc0004fecaf}) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol.go:262 +0x900 fp=0xc000153840 sp=0xc0001536d0 pc=0xede350 gvisor.dev/gvisor/pkg/tcpip/stack.(*Stack).SetTransportProtocolOption(0xc000180808, 0x6, {0x1fd8460, 0xc0004fecaf}) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/stack/stack.go:499 +0xfc fp=0xc000153890 sp=0xc000153840 pc=0xc4659c gvisor.dev/gvisor/runsc/boot.newEmptySandboxNetworkStack({0x1fea890, 0xc0001f4f50}, 0x0) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:1654 +0x558 fp=0xc000154670 sp=0xc000153890 pc=0x1804438 gvisor.dev/gvisor/runsc/boot.newRootNetworkNamespace(0xc0004eb188, {0x1fea890, 0xc0001f4f50}, 0xc000164008) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:1608 +0x18c fp=0xc000154750 sp=0xc000154670 pc=0x18035bc gvisor.dev/gvisor/runsc/boot.New({{0xfffff64b9f6f, 0x2a}, 0xc0004ec1b0, 0xc0004eb188, 0x8, 0xc00016cbf8, {0xc0001b28b8, 0x1, 0x1}, 0xffffffffffffffff, ...}) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:595 +0x2624 fp=0xc000155150 sp=0xc000154750 pc=0x17f47c4 gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc00050e000, {0xc000260118?, 0x12?}, 0xc0004f5420, {0xc00048a040, 0x2, 0xc000000000?}) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cmd/boot.go:556 +0x2a24 fp=0xc000155bd0 sp=0xc000155150 pc=0x194d434 github.com/google/subcommands.(*Commander).Execute(0xc000226080, {0x1fecc78, 0x2f32ac0}, {0xc00048a040, 0x2, 0x2}) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/.gocache/github.com/google/subcommands@v1.0.2-0.20190508160503-636abe8753b8/subcommands.go:200 +0x574 fp=0xc000155cd0 sp=0xc000155bd0 pc=0x242fa4 github.com/google/subcommands.Execute(...) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/.gocache/github.com/google/subcommands@v1.0.2-0.20190508160503-636abe8753b8/subcommands.go:481 gvisor.dev/gvisor/runsc/cli.Run(0x1da2508) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cli/cli.go:215 +0x1ef0 fp=0xc000155f20 sp=0xc000155cd0 pc=0x625f40 gvisor.dev/gvisor/runsc/cli/maincli.Main(...) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cli/maincli/maincli.go:28 main.main() /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/main.go:31 +0xd0 fp=0xc000155f40 sp=0xc000155f20 pc=0x19bc510 runtime.main() /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/go/src/runtime/proc.go:285 +0x278 fp=0xc000155fd0 sp=0xc000155f40 pc=0x8c488 runtime.goexit({}) /syzkaller/.cache/bazel/_bazel_root/667291253eecc7994147822c94d52fd6/sandbox/linux-sandbox/4/execroot/_main/go/src/runtime/asm_arm64.s:1268 +0x4 fp=0xc000155fd0 sp=0xc000155fd0 pc=0xcced4