panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0xa03424] goroutine 440115 [running]: panic({0x103dea0, 0x1e4baf0}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc001fb95d8 sp=0xc001fb9518 pc=0x4358b7 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc001fb9628 sp=0xc001fb95d8 pc=0x44c376 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CheckIORange(...) pkg/sentry/mm/io.go:71 gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x13f45f8?, 0xc00797dea0?}, 0xc008ce1500, 0xffffffffffffffff?, {0xc008ce1e44, 0x2?, 0x90}) pkg/sentry/kernel/task_usermem.go:270 +0x104 fp=0xc001fb9660 sp=0xc001fb9628 pc=0xa03424 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x13f45f8, 0xc00797dea0}, 0xc008ce1500, 0x20000240, 0x3) pkg/sentry/kernel/task_usermem.go:231 +0x286 fp=0xc001fb9700 sp=0xc001fb9660 pc=0xa031a6 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0xc00797dea0?, 0x13ff1f0?, 0xc001fb97f8?) pkg/sentry/kernel/task_usermem.go:411 +0x3a fp=0xc001fb9738 sp=0xc001fb9700 pc=0xa0435a gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doProcessVMReadWrite.func1() pkg/sentry/syscalls/linux/sys_process_vm.go:104 +0xa6 fp=0xc001fb9820 sp=0xc001fb9738 pc=0xb60b86 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.doProcessVMReadWrite(0xc00965ea80, 0xc008ce1500, 0x20000080, 0x20000240, 0x1, 0x3, 0x0) pkg/sentry/syscalls/linux/sys_process_vm.go:174 +0x1f8 fp=0xc001fb9890 sp=0xc001fb9820 pc=0xb60a38 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.processVMRW(0x561d3eb2e058?, {{0x2c5f}, {0x20000080}, {0x1}, {0x20000240}, {0x3}, {0x0}}, 0x1) pkg/sentry/syscalls/linux/sys_process_vm.go:84 +0x21c fp=0xc001fb9908 sp=0xc001fb9890 pc=0xb6075c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.ProcessVMWritev(0xc00a3daa80?, {{0x2c5f}, {0x20000080}, {0x1}, {0x20000240}, {0x3}, {0x0}}) pkg/sentry/syscalls/linux/sys_process_vm.go:42 +0x45 fp=0xc001fb9958 sp=0xc001fb9908 pc=0xb60505 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00a3daa80, 0x137, {{0x2c5f}, {0x20000080}, {0x1}, {0x20000240}, {0x3}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc001fb9c98 sp=0xc001fb9958 pc=0x9ff4eb gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00a3daa80, 0xc000c6e4e0?, {{0x2c5f}, {0x20000080}, {0x1}, {0x20000240}, {0x3}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc001fb9cf8 sp=0xc001fb9c98 pc=0xa00ad4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000382400?, 0xc001fb9e40?, {{0x2c5f}, {0x20000080}, {0x1}, {0x20000240}, {0x3}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc001fb9d58 sp=0xc001fb9cf8 pc=0xa006c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc006d04d10?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc001fb9e50 sp=0xc001fb9d58 pc=0xa0038c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc007fc0400?, 0xc00a3daa80) pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc001fb9f60 sp=0xc001fb9e50 pc=0x9f22a5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00a3daa80, 0x2ca2) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc001fb9fc0 sp=0xc001fb9f60 pc=0x9f0aec gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:378 +0x2a fp=0xc001fb9fe0 sp=0xc001fb9fc0 pc=0x9fd98a runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc001fb9fe8 sp=0xc001fb9fe0 pc=0x4695c1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:378 +0x105