panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1585621] goroutine 1308461 [running]: panic(0x1943560, 0x26d2bc0) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc0008bc8d0 sp=0xc0008bc808 pc=0x43a6c5 runtime.panicmem() GOROOT/src/runtime/panic.go:212 +0x5b fp=0xc0008bc8f0 sp=0xc0008bc8d0 pc=0x43871b runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:734 +0x173 fp=0xc0008bc928 sp=0xc0008bc8f0 pc=0x453db3 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).callFuture(0xc035e1ecc0, 0xc00bea9500, 0xc035f4a420, 0x0, 0x0, 0x0) pkg/sentry/fsimpl/fuse/connection.go:287 +0x181 fp=0xc0008bc9f8 sp=0xc0008bc928 pc=0x1585621 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).Call(0xc035e1ecc0, 0xc00bea9500, 0xc035f4a420, 0x1, 0xc000000001, 0x1dc9908) pkg/sentry/fsimpl/fuse/connection.go:262 +0xba fp=0xc0008bca70 sp=0xc0008bc9f8 pc=0x158523a gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*inode).newEntry(0xc005b7c800, 0x1dcd6f8, 0xc00bea9500, 0xc00826f001, 0x3, 0x12ae00000, 0x1dc9908, 0xc02c4ba840, 0x44d85c, 0x175e5e0, ...) pkg/sentry/fsimpl/fuse/fusefs.go:602 +0x28f fp=0xc0008bcc00 sp=0xc0008bca70 pc=0x1591b8f gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*inode).Lookup(0xc005b7c800, 0x1dcd6f8, 0xc00bea9500, 0xc00826f001, 0x3, 0x101c0008bcd08, 0xa0045599c, 0x478c42, 0x6e53590a617a4e) pkg/sentry/fsimpl/fuse/fusefs.go:493 +0xec fp=0xc0008bcc98 sp=0xc0008bcc00 pc=0x159048c gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).revalidateChildLocked(0xc00b0f4300, 0x1dcd6f8, 0xc00bea9500, 0xc0002f0900, 0xc00a25d4d0, 0xc00826f001, 0x3, 0x0, 0x0, 0x0, ...) pkg/sentry/fsimpl/kernfs/filesystem.go:134 +0xe9 fp=0xc0008bcd20 sp=0xc0008bcc98 pc=0xb02349 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0xc00b0f4300, 0x1dcd6f8, 0xc00bea9500, 0xc009dd9b00, 0xc00a25d4d0, 0xc0008bce01, 0x44cb2a, 0xc001e54900, 0xc00b0f435c) pkg/sentry/fsimpl/kernfs/filesystem.go:76 +0x29c fp=0xc0008bce48 sp=0xc0008bcd20 pc=0xb019dc gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc00b0f4300, 0x1dcd6f8, 0xc00bea9500, 0xc009dd9b00, 0x1766db0, 0x7f93f54b0008, 0xc02bc73868) pkg/sentry/fsimpl/kernfs/filesystem.go:166 +0xfe fp=0xc0008bcec8 sp=0xc0008bce48 pc=0xb0275e gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc00b0f4300, 0x1dcd6f8, 0xc00bea9500, 0xc009dd9b00, 0x2, 0x0, 0x0, 0x0) pkg/sentry/fsimpl/kernfs/filesystem.go:475 +0x185 fp=0xc0008bd1a8 sp=0xc0008bcec8 pc=0xb057e5 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*filesystem).OpenAt(0xc00b0f4300, 0x1dcd6f8, 0xc00bea9500, 0xc009dd9b00, 0x8002, 0x0, 0xc00cafe72a, 0x9) :1 +0x91 fp=0xc0008bd210 sp=0xc0008bd1a8 pc=0x15a41f1 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc0002f0900, 0x1dcd6f8, 0xc00bea9500, 0xc000793260, 0xc0008bd600, 0xc0008bd528, 0x100, 0xc035e1ef60, 0xc00a25d4d0) pkg/sentry/vfs/vfs.go:437 +0x302 fp=0xc0008bd490 sp=0xc0008bd210 pc=0x981342 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.openat(0xc00bea9500, 0xc0ffffff9c, 0x20000100, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0) pkg/sentry/syscalls/linux/vfs2/filesystem.go:179 +0x31e fp=0xc0008bd6b0 sp=0xc0008bd490 pc=0x145985e gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Openat(0xc00bea9500, 0xffffffffffffff9c, 0x20000100, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/filesystem.go:158 +0x6f fp=0xc0008bd728 sp=0xc0008bd6b0 pc=0x14593cf gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00bea9500, 0x101, 0xffffffffffffff9c, 0x20000100, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/kernel/task_syscall.go:103 +0x195 fp=0xc0008bd9b8 sp=0xc0008bd728 pc=0xd8d135 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00bea9500, 0x101, 0xffffffffffffff9c, 0x20000100, 0x2, 0x0, 0x0, 0x0, 0xc00bea9ddf, 0xc00bea9500) pkg/sentry/kernel/task_syscall.go:238 +0xb4 fp=0xc0008bda90 sp=0xc0008bd9b8 pc=0xd8eb54 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00bea9500, 0x101, 0xffffffffffffff9c, 0x20000100, 0x2, 0x0, 0x0, 0x0, 0x1ffffffff, 0xc000000000) pkg/sentry/kernel/task_syscall.go:198 +0x10f fp=0xc0008bdb38 sp=0xc0008bda90 pc=0xd8e44f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00bea9500, 0x2, 0xc00bea9500) pkg/sentry/kernel/task_syscall.go:173 +0x214 fp=0xc0008bdca8 sp=0xc0008bdb38 pc=0xd8dbd4 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00bea9500, 0x1d9f420, 0x0) pkg/sentry/kernel/task_run.go:254 +0x1287 fp=0xc0008bded8 sp=0xc0008bdca8 pc=0xd79e07 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00bea9500, 0xd2b2) pkg/sentry/kernel/task_run.go:95 +0x353 fp=0xc0008bdfd0 sp=0xc0008bded8 pc=0xd783b3 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc0008bdfd8 sp=0xc0008bdfd0 pc=0x477541 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:342 +0x1a5