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

goroutine 0 gp=0x382dee0 m=0 mp=0x3830200 [idle]:

goroutine 1 gp=0xc000002380 m=nil [runnable]:
gvisor.dev/gvisor/pkg/sync.(*SeqCount).ReadOk(0x382d2e0, 0x2)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sync/seqcount.go:90 +0xc6 fp=0xc00025a020 sp=0xc00025a018 pc=0x6fe686
gvisor.dev/gvisor/pkg/sync/locking.(*goroutineLocksAtomicPtrMap).Load(0x382d2c0, 0x1)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_goroutine_unsafe.go:165 +0x1c9 fp=0xc00025a0b8 sp=0xc00025a020 pc=0xae4e69
gvisor.dev/gvisor/pkg/sync/locking.DelGLock(0xc00019d200, 0xffffffffffffffff)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sync/locking/lockdep.go:159 +0x1a5 fp=0xc00025a230 sp=0xc00025a0b8 pc=0xae8ae5
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*dispatcherMutex).Unlock(0xc0001a4e6c)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/dispatcher_mutex.go:47 +0x98 fp=0xc00025a250 sp=0xc00025a230 pc=0x157f718
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*dispatcher).init.deferwrap1()
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/dispatcher.go:389 +0x34 fp=0xc00025a270 sp=0xc00025a250 pc=0x157cdb4
runtime.deferreturn()
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/go/src/runtime/panic.go:589 +0x5e fp=0xc00025a300 sp=0xc00025a270 pc=0x47fd3e
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*dispatcher).init(0xc0001a4e40, 0xc0002d2030, 0x6)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/dispatcher.go:395 +0x233 fp=0xc00025a388 sp=0xc00025a300 pc=0x157cd33
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.newProtocol(0xc000181008, {0x263dbf2, 0x4}, 0x0)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol.go:599 +0x485 fp=0xc00025a558 sp=0xc00025a388 pc=0x15b3be5
gvisor.dev/gvisor/pkg/tcpip/transport/tcp.NewProtocol(0xc000181008)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol.go:538 +0x91 fp=0xc00025a598 sp=0xc00025a558 pc=0x15b3711
gvisor.dev/gvisor/pkg/tcpip/stack.New({{0xc00044eae0, 0x3, 0x3}, {0xc0005f37e0, 0x4, 0x4}, {0x28f8de0, 0xc0003ab7a0}, {0xc0001a2338, {0x0, ...}, ...}, ...})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/tcpip/stack/stack.go:437 +0x16dc fp=0xc00025b890 sp=0xc00025a598 pc=0x129cddc
gvisor.dev/gvisor/runsc/boot.newEmptySandboxNetworkStack({0x28f8de0, 0xc0003ab7a0}, 0x0)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:1634 +0x38a fp=0xc00025c678 sp=0xc00025b890 pc=0x20a1fca
gvisor.dev/gvisor/runsc/boot.newRootNetworkNamespace(0xc0001f5508, {0x28f8de0, 0xc0003ab7a0}, 0xc000264008)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:1608 +0x1e9 fp=0xc00025c750 sp=0xc00025c678 pc=0x20a11a9
gvisor.dev/gvisor/runsc/boot.New({{0x7ffc25336f74, 0x25}, 0xc0003a4090, 0xc0001f5508, 0x8, 0xc0002c4528, {0xc000015638, 0x1, 0x1}, 0xffffffffffffffff, ...})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/boot/loader.go:595 +0x3436 fp=0xc00025d170 sp=0xc00025c750 pc=0x208dbf6
gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc00025fc20, {0xc000040358?, 0x12?}, 0xc00024e070, {0xc00028a040, 0x2, 0x0?})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cmd/boot.go:556 +0x39ff fp=0xc00025dbf0 sp=0xc00025d170 pc=0x224545f
github.com/google/subcommands.(*Commander).Execute(0xc00017e080, {0x28fb258, 0x38503c0}, {0xc00028a040, 0x2, 0x2})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/.gocache/github.com/google/subcommands@v1.0.2-0.20190508160503-636abe8753b8/subcommands.go:200 +0x71b fp=0xc00025dce8 sp=0xc00025dbf0 pc=0x690f5b
github.com/google/subcommands.Execute(...)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/.gocache/github.com/google/subcommands@v1.0.2-0.20190508160503-636abe8753b8/subcommands.go:481
gvisor.dev/gvisor/runsc/cli.Run(0x26b3420)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cli/cli.go:215 +0x279e fp=0xc00025df30 sp=0xc00025dce8 pc=0xb4c8de
gvisor.dev/gvisor/runsc/cli/maincli.Main(...)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/cli/maincli/maincli.go:28
main.main()
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/gopath/src/gvisor.dev/gvisor/runsc/main.go:31 +0xc5 fp=0xc00025df50 sp=0xc00025df30 pc=0x22d1485
runtime.main()
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/go/src/runtime/proc.go:285 +0x29d fp=0xc00025dfe0 sp=0xc00025df50 pc=0x4840bd
runtime.goexit({})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/1959/execroot/_main/go/src/runtime/asm_amd64.s:1693 +0x1 fp=0xc00025dfe8 sp=0xc00025dfe0 pc=0x4c5b61