panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xc43291] goroutine 177959 [running]: panic({0x1674160, 0x2425c80}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00379efc0 sp=0xc00379ef00 pc=0x438397 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00379f010 sp=0xc00379efc0 pc=0x450696 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CheckIORange(...) pkg/sentry/mm/io.go:71 gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1b060e0, 0xc00314e500}, 0xc0048ea000, 0x1?, {0xc0048ea944, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:270 +0x3d1 fp=0xc00379f0c8 sp=0xc00379f010 pc=0xc43291 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1b060e0, 0xc00314e500}, 0xc0048ea000, 0x20000940, 0x8) pkg/sentry/kernel/task_usermem.go:231 +0x27f fp=0xc00379f1a8 sp=0xc00379f0c8 pc=0xc42c5f 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 +0xb4 fp=0xc00379f348 sp=0xc00379f1a8 pc=0xe2f814 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doProcessVMReadWrite(0xc0048ea000, 0xc005879500, 0x20000940, 0x200002c0, 0x8, 0x3, 0x1) pkg/sentry/syscalls/linux/sys_process_vm.go:174 +0x32e fp=0xc00379f3f0 sp=0xc00379f348 pc=0xe2f6ae gvisor.dev/gvisor/pkg/sentry/syscalls/linux.processVMRW(0xc003a6d500, {{0x62a}, {0x200002c0}, {0x3}, {0x20000940}, {0x8}, {0x0}}, 0x0) pkg/sentry/syscalls/linux/sys_process_vm.go:91 +0x294 fp=0xc00379f490 sp=0xc00379f3f0 pc=0xe2f294 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.ProcessVMReadv(0xc003a6d500?, {{0x62a}, {0x200002c0}, {0x3}, {0x20000940}, {0x8}, {0x0}}) pkg/sentry/syscalls/linux/sys_process_vm.go:37 +0x56 fp=0xc00379f508 sp=0xc00379f490 pc=0xe2eed6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003a6d500, 0x136, {{0x62a}, {0x200002c0}, {0x3}, {0x20000940}, {0x8}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x9b8 fp=0xc00379fa18 sp=0xc00379f508 pc=0xc3dad8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003a6d500, 0x0?, {{0x62a}, {0x200002c0}, {0x3}, {0x20000940}, {0x8}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc00379fab0 sp=0xc00379fa18 pc=0xc3f83d gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc006adbee0?, 0xc0002a72c0?, {{0x62a}, {0x200002c0}, {0x3}, {0x20000940}, {0x8}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc00379fb28 sp=0xc00379fab0 pc=0xc3f22f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003a6d500) pkg/sentry/kernel/task_syscall.go:257 +0x496 fp=0xc00379fc50 sp=0xc00379fb28 pc=0xc3edd6 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc003a6d500?, 0xc003a6d500) pkg/sentry/kernel/task_run.go:253 +0x18f9 fp=0xc00379fec0 sp=0xc00379fc50 pc=0xc2a419 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003a6d500, 0x17ad) pkg/sentry/kernel/task_run.go:94 +0x354 fp=0xc00379ffb0 sp=0xc00379fec0 pc=0xc281b4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:378 +0x48 fp=0xc00379ffe0 sp=0xc00379ffb0 pc=0xc3b6c8 runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00379ffe8 sp=0xc00379ffe0 pc=0x46e1c1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:378 +0x1a8