panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x8f5fad] goroutine 4751653 [running]: panic({0xeed060, 0x1ad79b0}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00186f540 sp=0xc00186f480 pc=0x435a77 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00186f590 sp=0xc00186f540 pc=0x44c536 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CheckIORange(...) pkg/sentry/mm/io.go:71 gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1258b40?, 0xc00a3f2840?}, 0xc00ee30000, 0x1?, {0xc00ee30944, 0x8e82da?, 0x90}) pkg/sentry/kernel/task_usermem.go:270 +0xad fp=0xc00186f5c8 sp=0xc00186f590 pc=0x8f5fad gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1258b40, 0xc00a3f2840}, 0xc00ee30000, 0x20000540, 0x3) pkg/sentry/kernel/task_usermem.go:231 +0x1ee fp=0xc00186f668 sp=0xc00186f5c8 pc=0x8f5dce gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(...) pkg/sentry/kernel/task_usermem.go:411 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doProcessVMReadWrite.func1() pkg/sentry/syscalls/linux/sys_process_vm.go:100 +0x75 fp=0xc00186f768 sp=0xc00186f668 pc=0xa1d535 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doProcessVMReadWrite(0xc00ee30000, 0xc00bdba000, 0x20000540, 0x20000280, 0x3, 0x1, 0x1) pkg/sentry/syscalls/linux/sys_process_vm.go:174 +0x1ae fp=0xc00186f7d8 sp=0xc00186f768 pc=0xa1d42e gvisor.dev/gvisor/pkg/sentry/syscalls/linux.processVMRW(0x5628f29d2f88?, {{0x6b46}, {0x20000280}, {0x1}, {0x20000540}, {0x3}, {0x0}}, 0x0) pkg/sentry/syscalls/linux/sys_process_vm.go:91 +0x19c fp=0xc00186f850 sp=0xc00186f7d8 pc=0xa1d21c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.ProcessVMReadv(0xc00c470a80?, {{0x6b46}, {0x20000280}, {0x1}, {0x20000540}, {0x3}, {0x0}}) pkg/sentry/syscalls/linux/sys_process_vm.go:37 +0x38 fp=0xc00186f8a0 sp=0xc00186f850 pc=0xa1cff8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00c470a80, 0x136, {{0x6b46}, {0x20000280}, {0x1}, {0x20000540}, {0x3}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc00186fc90 sp=0xc00186f8a0 pc=0x8f2c75 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00c470a80, 0xc0053bd860?, {{0x6b46}, {0x20000280}, {0x1}, {0x20000540}, {0x3}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc00186fcf0 sp=0xc00186fc90 pc=0x8f3eaa gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000276fc0?, 0xc00186fe38?, {{0x6b46}, {0x20000280}, {0x1}, {0x20000540}, {0x3}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc00186fd50 sp=0xc00186fcf0 pc=0x8f3b85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004b4a210?) pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc00186fe48 sp=0xc00186fd50 pc=0x8f38f0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc009618300?, 0xc00c470a80) pkg/sentry/kernel/task_run.go:253 +0xdea fp=0xc00186ff60 sp=0xc00186fe48 pc=0x8e7e8a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00c470a80, 0xafb7) pkg/sentry/kernel/task_run.go:94 +0x1ac fp=0xc00186ffc0 sp=0xc00186ff60 pc=0x8e6a8c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:378 +0x2a fp=0xc00186ffe0 sp=0xc00186ffc0 pc=0x8f14ca runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00186ffe8 sp=0xc00186ffe0 pc=0x469781 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:378 +0xf9