panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1ec9dc4] goroutine 4107092 [running]: panic({0x322f40, 0x2800340}) GOROOT/src/runtime/panic.go:987 +0x3bb fp=0xc01b4c8860 sp=0xc01b4c87a0 pc=0x130d87b runtime.panicmem(...) GOROOT/src/runtime/panic.go:260 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:837 +0x37d fp=0xc01b4c88c0 sp=0xc01b4c8860 pc=0x132675d gvisor.dev/gvisor/pkg/sentry/inet.(*Namespace).GetInode(...) pkg/sentry/inet/namespace.go:70 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*namespaceSymlink).getInode(...) pkg/sentry/fsimpl/proc/task_files.go:1276 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*namespaceSymlink).Getlink(0xc013e6a080, {0x84d3c0, 0xc004b0c000}, 0xc00057d600) pkg/sentry/fsimpl/proc/task_files.go:1306 +0x184 fp=0xc01b4c89f8 sp=0xc01b4c88c0 pc=0x1ec9dc4 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*taskOwnedInode).Getlink(0xc00ec53470, {0x84d3c0, 0xc004b0c000}, 0xc019357710?) :1 +0x77 fp=0xc01b4c8a58 sp=0xc01b4c89f8 pc=0x1f04e77 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0x131f4b9?, {0x84d3c0, 0xc004b0c000}, 0xc0036afb00, 0xc019357680) pkg/sentry/fsimpl/kernfs/filesystem.go:85 +0x5a3 fp=0xc01b4c8b98 sp=0xc01b4c8a58 pc=0x190e643 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc00039bef0?, {0x84d3c0, 0xc004b0c000}, 0xc0036afb00) pkg/sentry/fsimpl/kernfs/filesystem.go:163 +0xdf fp=0xc01b4c8c00 sp=0xc01b4c8b98 pc=0x190ed9f gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc00039bea0, {0x84d3c0, 0xc004b0c000}, 0xc0036afb00, {0x8002, 0x0, 0x0}) pkg/sentry/fsimpl/kernfs/filesystem.go:486 +0x1c5 fp=0xc01b4c8ef0 sp=0xc01b4c8c00 pc=0x1912d65 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*filesystem).OpenAt(0xc00039bea0, {0x84d3c0, 0xc004b0c000}, 0xc0036afb00?, {0x37f5300?, 0x0?, 0x0?}) :1 +0x85 fp=0xc01b4c8f50 sp=0xc01b4c8ef0 pc=0x1ef4f65 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc02949d680?, {0x84d3c0, 0xc004b0c000}, 0xc000786000?, 0xc01b4c9370, 0xc01b4c9268) pkg/sentry/vfs/vfs.go:460 +0x517 fp=0xc01b4c91c0 sp=0xc01b4c8f50 pc=0x1872a17 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.openat(0xc004b0c000, 0x1?, 0x1349ba5?, 0x2, 0x0) pkg/sentry/syscalls/linux/sys_file.go:112 +0x2b2 fp=0xc01b4c9420 sp=0xc01b4c91c0 pc=0x1d9cff2 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Openat(0xc004b0c000?, 0x13181a5?, {{0xffffff9c}, {0x7f56f8bd8030}, {0x2}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_file.go:91 +0x45 fp=0xc01b4c9480 sp=0xc01b4c9420 pc=0x1d9cc45 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004b0c000, 0x101, {{0xffffff9c}, {0x7f56f8bd8030}, {0x2}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x9c2 fp=0xc01b4c9960 sp=0xc01b4c9480 pc=0x1bb0002 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004b0c000, 0x0?, {{0xffffff9c}, {0x7f56f8bd8030}, {0x2}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc01b4c99f8 sp=0xc01b4c9960 pc=0x1bb1dfd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc01a1151e0?, 0xc02c8265a0?, {{0xffffff9c}, {0x7f56f8bd8030}, {0x2}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc01b4c9a70 sp=0xc01b4c99f8 pc=0x1bb17af gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004b0c000) pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc01b4c9b98 sp=0xc01b4c9a70 pc=0x1bb1345 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc004b0c000?, 0xc004b0c000) pkg/sentry/kernel/task_run.go:269 +0x1d4b fp=0xc01b4c9e70 sp=0xc01b4c9b98 pc=0x1b9ba0b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004b0c000, 0xd914) pkg/sentry/kernel/task_run.go:98 +0x41b fp=0xc01b4c9fb0 sp=0xc01b4c9e70 pc=0x1b9929b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:389 +0x48 fp=0xc01b4c9fe0 sp=0xc01b4c9fb0 pc=0x1badb08 runtime.goexit() src/runtime/asm_amd64.s:1598 +0x1 fp=0xc01b4c9fe8 sp=0xc01b4c9fe0 pc=0x1346801 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:389 +0x1ad