panic: expected socket to exist at '!N' in abstract socket namespace goroutine 350 [running]: panic({0x297640?, 0xc000c386f0?}) GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc0007b8dd8 sp=0xc0007b8d28 pc=0x120672c gvisor.dev/gvisor/pkg/sentry/inet.(*AbstractSocketNamespace).Remove(0xc0002aa0d8, {0xc000770151, 0x6b}, {0x711280?, 0xc0007fe0c0}) pkg/sentry/inet/abstract_socket_namespace.go:141 +0x2f4 fp=0xc0007b8f08 sp=0xc0007b8dd8 pc=0x1a99814 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).DecRef.func1() pkg/sentry/socket/unix/unix.go:120 +0x15a fp=0xc0007b8f78 sp=0xc0007b8f08 pc=0x1d3c2da gvisor.dev/gvisor/pkg/sentry/socket/unix.(*socketRefs).DecRef(0xc0007fe140, 0xc0007b8fe8) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/socket/unix/socket_refs.go:132 +0xaf fp=0xc0007b8fd8 sp=0xc0007b8f78 pc=0x1d3b74f gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).DecRef(0xc0007fe0c0, {0x71f4b8, 0xc000b3b500}) pkg/sentry/socket/unix/unix.go:116 +0x94 fp=0xc0007b9018 sp=0xc0007b8fd8 pc=0x1d3c134 gvisor.dev/gvisor/pkg/sentry/socket/unix.(*Socket).Release(0xc0007fe0c0?, {0x71f4b8, 0xc000b3b500}) pkg/sentry/socket/unix/unix.go:132 +0x4c fp=0xc0007b9048 sp=0xc0007b9018 pc=0x1d3c3ac gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef.func1() pkg/sentry/vfs/file_description.go:197 +0x48f fp=0xc0007b9188 sp=0xc0007b9048 pc=0x17b578f gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc0007fe0c0, 0xc0007b91f8) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/file_description_refs.go:132 +0xaf fp=0xc0007b91e8 sp=0xc0007b9188 pc=0x17bfbcf gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0xc0007fe0c0, {0x71f4b8, 0xc000b3b500}) pkg/sentry/vfs/file_description.go:161 +0x7a fp=0xc0007b9228 sp=0xc0007b91e8 pc=0x17b52ba gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).drop(0xc0009d2f00?, {0x71f4b8, 0xc000b3b500}, 0x3?) pkg/sentry/kernel/fd_table.go:137 +0x110 fp=0xc0007b92a8 sp=0xc0007b9228 pc=0x1ae2b50 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).NewFDAt(0xc00077a480?, {0x71f4b8, 0xc000b3b500}, 0x77a480?, 0x1242969?, {0x70?}) pkg/sentry/kernel/fd_table.go:321 +0xc5 fp=0xc0007b9318 sp=0xc0007b92a8 pc=0x1ae44a5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).NewFDAt(0xc000b3b500, 0xb31640?, 0x0?, {0x0?}) pkg/sentry/kernel/task.go:778 +0x8c fp=0xc0007b9380 sp=0xc0007b9318 pc=0x1b1fe2c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.dup3(0xc000b3b500, 0x12412cc?, 0x3, 0x0) pkg/sentry/syscalls/linux/sys_file.go:572 +0x173 fp=0xc0007b9468 sp=0xc0007b9380 pc=0x1d79bf3 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Dup3(0xc0007b9540?, 0x1239d6e?, {{0x4}, {0x3}, {0x0}, {0x0}, {0x7fa55c3479a7}, {0x7fc6cf8d56c0}}) pkg/sentry/syscalls/linux/sys_file.go:558 +0x105 fp=0xc0007b94d0 sp=0xc0007b9468 pc=0x1d79a25 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000b3b500, 0x124, {{0x4}, {0x3}, {0x0}, {0x0}, {0x7fa55c3479a7}, {0x7fc6cf8d56c0}}) pkg/sentry/kernel/task_syscall.go:142 +0xaff fp=0xc0007b9908 sp=0xc0007b94d0 pc=0x1b6285f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000b3b500, 0x1?, {{0x4}, {0x3}, {0x0}, {0x0}, {0x7fa55c3479a7}, {0x7fc6cf8d56c0}}) pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc0007b99c0 sp=0xc0007b9908 pc=0x1b6491d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b381e0?, 0x1242969?, {{0x4}, {0x3}, {0x0}, {0x0}, {0x7fa55c3479a7}, {0x7fc6cf8d56c0}}) pkg/sentry/kernel/task_syscall.go:282 +0xbd fp=0xc0007b9a38 sp=0xc0007b99c0 pc=0x1b6421d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000b3b500) pkg/sentry/kernel/task_syscall.go:257 +0x55b fp=0xc0007b9b70 sp=0xc0007b9a38 pc=0x1b63d7b gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000b3b500?, 0xc000b3b500) pkg/sentry/kernel/task_run.go:269 +0x2387 fp=0xc0007b9e60 sp=0xc0007b9b70 pc=0x1b4cc67 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000b3b500, 0x16) pkg/sentry/kernel/task_run.go:98 +0x36a fp=0xc0007b9fb0 sp=0xc0007b9e60 pc=0x1b49fca gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:391 +0x45 fp=0xc0007b9fe0 sp=0xc0007b9fb0 pc=0x1b600c5 runtime.goexit() src/runtime/asm_amd64.s:1650 +0x1 fp=0xc0007b9fe8 sp=0xc0007b9fe0 pc=0x123f741 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 345 pkg/sentry/kernel/task_start.go:391 +0x1ce