panic: nested locking: transport.endpointMutex: goroutine 250 [running]: gvisor.dev/gvisor/pkg/sentry/socket/unix/transport.(*endpointMutex).Lock(0xc0008f42c8) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/socket/unix/transport/endpoint_mutex.go:35 +0x45 gvisor.dev/gvisor/pkg/sentry/socket/unix/transport.(*connectionedEndpoint).Close(0xc0008f42c0, {0x82c058, 0xc000812a80}) pkg/sentry/socket/unix/transport/connectioned.go:234 +0x55 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).DecRef.func1() pkg/sentry/socket/unix/unix.go:112 +0xc2 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*socketRefs).DecRef(0xc00064c080, 0xc000899930) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/socket/unix/socket_refs.go:131 +0x5f gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).DecRef(0xc00064c000, {0x82c058, 0xc000812a80}) pkg/sentry/socket/unix/unix.go:110 +0x85 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).Release(0xc00064c000?, {0x82c058, 0xc000812a80}) pkg/sentry/socket/unix/unix.go:123 +0x45 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef.func1() pkg/sentry/vfs/file_description.go:197 +0x3ca gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc00064c000, 0xc000899b38) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/file_description_refs.go:131 +0x5f gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0xc00064c000, {0x82c058, 0xc000812a80}) pkg/sentry/vfs/file_description.go:161 +0x6f gvisor.dev/gvisor/pkg/sentry/socket/control.(*RightsFiles).Release(0xc0002d4138, {0x82c058, 0xc000812a80}) pkg/sentry/socket/control/control.go:707 +0x85 gvisor.dev/gvisor/pkg/sentry/socket/unix/transport.(*streamQueueReceiver).Recv(0xc00060eba0, {0x82c058, 0xc000812a80}, {0xc000abc048, 0x1, 0x1}, 0x0, 0x0, 0x0) pkg/sentry/socket/unix/transport/unix.go:552 +0x902 gvisor.dev/gvisor/pkg/sentry/socket/unix/transport.(*baseEndpoint).RecvMsg(0xc0008f4420, {0x82c058, 0xc000812a80}, {0xc000abc048, 0x1, 0x1}, 0x5?, 0xc000899f80?, 0x2b?, 0x0) pkg/sentry/socket/unix/transport/unix.go:871 +0x10b gvisor.dev/gvisor/pkg/sentry/socket/unix.(*EndpointReader).ReadToBlocks.func1({0xc000abc048, 0x1, 0x1}) pkg/sentry/socket/unix/io.go:115 +0x14d gvisor.dev/gvisor/pkg/safemem.FromVecReaderFunc.ReadToBlocks({0x3c0?}, {0x7f42b74003c0?, 0x0?, 0x1000?, 0xffffffffffffffff?}) pkg/safemem/io.go:282 +0x38c gvisor.dev/gvisor/pkg/sentry/socket/unix.(*EndpointReader).ReadToBlocks(0xc000468500, {0x7f42b74003c0?, 0x0?, 0x200013c0?, 0x200003c0?}) pkg/sentry/socket/unix/io.go:124 +0x7f gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc0008da000, {0x82c058, 0xc000812a80}, {0x14ab432?, 0x12d2819?}, {0xd7?, 0x43?, 0x2d?}, 0x1?, 0xc00089a648) pkg/sentry/mm/io.go:522 +0x196 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc0008da000, {0x82c058, 0xc000812a80}, {0x0?, 0xc00089a680?, 0xc000812a80?, 0x2764c00?}, {0x0, 0x1, 0x0}, ...) pkg/sentry/mm/io.go:591 +0x6c5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOutFrom(0xc0008da000, {0x82c058, 0xc000812a80}, {0x0?, 0x0?, 0xc00020a3c0?, 0x0?}, {0x80fe40?, 0xc000468500?}, {0x0, ...}) pkg/sentry/mm/io.go:273 +0x2a9 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyOutFrom(...) pkg/usermem/usermem.go:508 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).RecvMsg.func1() pkg/sentry/socket/unix/unix.go:715 +0xf9 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).RecvMsg(0xc00064c0c0, 0xc000812a80, {{0x826250, 0xc0008da000}, {0x0, 0x1, 0x200003c0, 0x1000}, {0x0, 0x1}}, ...) pkg/sentry/socket/unix/unix.go:772 +0x886 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.recvSingleMsg(0xc000812a80, {0x83cd48, 0xc00064c0c0}, 0x20001580, 0x0, 0x0?, {0xc000611860?}) pkg/sentry/syscalls/linux/sys_socket.go:812 +0x268 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RecvMMsg(0xc000812a80, 0x0?, {{0x4}, {0x20001580}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:730 +0x905 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000812a80, 0x12b, {{0x4}, {0x20001580}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x9c2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000812a80, 0x0?, {{0x4}, {0x20001580}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x7d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0006a29c0?, 0xc0002d61e0?, {{0x4}, {0x20001580}, {0x1}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x8f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000812a80) pkg/sentry/kernel/task_syscall.go:257 +0x4c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000812a80?, 0xc000812a80) pkg/sentry/kernel/task_run.go:269 +0x1d4b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000812a80, 0x9) pkg/sentry/kernel/task_run.go:98 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:377 +0x1ad