SIGSEGV: segmentation violation
PC=0x42d901 m=7 sigcode=1 addr=0x4

goroutine 0 gp=0xc00018ac40 m=7 mp=0xc000188808 [idle]:

goroutine 1 gp=0xc000002380 m=nil [runnable]:
runtime.newobject(0x246a680?)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/go/src/runtime/malloc.go:1746 +0x35 fp=0xc0002f8570 sp=0xc0002f8568 pc=0x456a15
gvisor.dev/gvisor/pkg/tcpip/transport/udp.NewProtocol(0xc000506808)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/udp/protocol.go:137 +0x85 fp=0xc0002f8598 sp=0xc0002f8570 pc=0x16ccf85
gvisor.dev/gvisor/pkg/tcpip/stack.New({{0xc0003da0a8, 0x3, 0x3}, {0xc00019a020, 0x4, 0x4}, {0x28f8f00, 0xc000248070}, {0xc0001e01e8, {0x0, ...}, ...}, ...})
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/stack/stack.go:437 +0x16dc fp=0xc0002f9890 sp=0xc0002f8598 pc=0x129cddc
gvisor.dev/gvisor/runsc/boot.newEmptySandboxNetworkStack({0x28f8f00, 0xc000248070}, 0x0)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:1634 +0x38a fp=0xc0002fa678 sp=0xc0002f9890 pc=0x20a26aa
gvisor.dev/gvisor/runsc/boot.newRootNetworkNamespace(0xc0001ed508, {0x28f8f00, 0xc000248070}, 0xc0002fe008)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:1608 +0x1e9 fp=0xc0002fa750 sp=0xc0002fa678 pc=0x20a1889
gvisor.dev/gvisor/runsc/boot.New({{0x7ffd78ef6fa0, 0x24}, 0xc0001a6fc0, 0xc0001ed508, 0x8, 0xc000317128, {0xc0001a1ee8, 0x1, 0x1}, 0xffffffffffffffff, ...})
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:595 +0x3436 fp=0xc0002fb170 sp=0xc0002fa750 pc=0x208e2d6
gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc000259c20, {0xc0000403a8?, 0x13?}, 0xc000313960, {0xc000448800, 0x2, 0x0?})
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cmd/boot.go:556 +0x39ff fp=0xc0002fbbf0 sp=0xc0002fb170 pc=0x2245abf
github.com/google/subcommands.(*Commander).Execute(0xc00017e080, {0x28fb378, 0x384f3c0}, {0xc000448800, 0x2, 0x2})
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/.gocache/github.com/google/subcommands@v1.0.2-0.20190508160503-636abe8753b8/subcommands.go:200 +0x71b fp=0xc0002fbce8 sp=0xc0002fbbf0 pc=0x690f5b
github.com/google/subcommands.Execute(...)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/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(0x26b3440)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cli/cli.go:215 +0x279e fp=0xc0002fbf30 sp=0xc0002fbce8 pc=0xb4c8de
gvisor.dev/gvisor/runsc/cli/maincli.Main(...)
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cli/maincli/maincli.go:28
main.main()
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/main.go:31 +0xc5 fp=0xc0002fbf50 sp=0xc0002fbf30 pc=0x22d1ae5
runtime.main()
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/go/src/runtime/proc.go:285 +0x29d fp=0xc0002fbfe0 sp=0xc0002fbf50 pc=0x4840bd
runtime.goexit({})
	/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/4/execroot/_main/go/src/runtime/asm_amd64.s:1693 +0x1 fp=0xc0002fbfe8 sp=0xc0002fbfe0 pc=0x4c5b61