panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb7576a]

goroutine 1309054 [running]:
panic({0x16ee920, 0x2544c50})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00830cf18 sp=0xc00830ce58 pc=0x438317
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00830cf68 sp=0xc00830cf18 pc=0x450556
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0x0)
	pkg/sentry/mm/lifecycle.go:246 +0x2a fp=0xc00830cf90 sp=0xc00830cf68 pc=0xb7576a
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc00b1b7920)
	pkg/sentry/kernel/task_usermem.go:353 +0xb5 fp=0xc00830cfc8 sp=0xc00830cf90 pc=0xd60475
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc00b1b7920, 0x0?, {0xc00853de44, 0x10, 0x90})
	pkg/sentry/kernel/task_usermem.go:361 +0x77 fp=0xc00830d0c0 sp=0xc00830cfc8 pc=0xd60557
gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1bc8058, 0xc00b1b7920}, 0xc00853d500, 0xc00830d220?, {0xc00853de44, 0x10, 0x90})
	pkg/sentry/kernel/task_usermem.go:261 +0xa4 fp=0xc00830d178 sp=0xc00830d0c0 pc=0xd5f684
gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1bc8058, 0xc00b1b7920}, 0xc00853d500, 0x20002ec0, 0x7)
	pkg/sentry/kernel/task_usermem.go:231 +0x27f fp=0xc00830d258 sp=0xc00830d178 pc=0xd5f37f
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(...)
	pkg/sentry/kernel/task_usermem.go:387
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc00853ca80, 0xc00853d500, 0x0?, 0x0?, 0x0?, 0x0?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x325 fp=0xc00830d3f8 sp=0xc00830d258 pc=0x1169985
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0xc009e7ca80, {{0x19f1}, {0x20002a80}, {0x6}, {0x20002ec0}, {0x7}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1c5 fp=0xc00830d490 sp=0xc00830d3f8 pc=0x1169445
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc009e7ca80?, {{0x19f1}, {0x20002a80}, {0x6}, {0x20002ec0}, {0x7}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x59 fp=0xc00830d508 sp=0xc00830d490 pc=0x1169219
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc009e7ca80, 0x137, {{0x19f1}, {0x20002a80}, {0x6}, {0x20002ec0}, {0x7}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b8 fp=0xc00830da18 sp=0xc00830d508 pc=0xd5a1f8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc009e7ca80, 0x0?, {{0x19f1}, {0x20002a80}, {0x6}, {0x20002ec0}, {0x7}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc00830dab0 sp=0xc00830da18 pc=0xd5bf5d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc007c84340?, 0xc004610c30?, {{0x19f1}, {0x20002a80}, {0x6}, {0x20002ec0}, {0x7}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc00830db28 sp=0xc00830dab0 pc=0xd5b94f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc009e7ca80)
	pkg/sentry/kernel/task_syscall.go:257 +0x496 fp=0xc00830dc50 sp=0xc00830db28 pc=0xd5b4f6
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc009e7ca80?, 0xc009e7ca80)
	pkg/sentry/kernel/task_run.go:253 +0x18f9 fp=0xc00830dec0 sp=0xc00830dc50 pc=0xd46819
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc009e7ca80, 0xaff6)
	pkg/sentry/kernel/task_run.go:94 +0x354 fp=0xc00830dfb0 sp=0xc00830dec0 pc=0xd445b4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x48 fp=0xc00830dfe0 sp=0xc00830dfb0 pc=0xd57de8
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00830dfe8 sp=0xc00830dfe0 pc=0x46df01
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0x1a8