panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x8d32f9]

goroutine 709 [running]:
panic({0x1040680, 0x1e6e7a0})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000a57688 sp=0xc000a575c8 pc=0x435837
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc000a576d8 sp=0xc000a57688 pc=0x44c236
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0xc080e94000?)
	pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc000a576e0 sp=0xc000a576d8 pc=0x8d32f9
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc000488380)
	pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc000a57700 sp=0xc000a576e0 pc=0xa2f84f
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc000488380, 0xc00057a818?, {0xc000e94000, 0x7ffff000, 0x7ffff000})
	pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc000a577a0 sp=0xc000a57700 pc=0xa2f93d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc0008cd500, 0xc0008cd500, 0x0?, 0x0?, 0x7f4baa4be090?, 0x28?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:186 +0x449 fp=0xc000a57898 sp=0xc000a577a0 pc=0xcf2869
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x13f00c000a57980?, {{0x22}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1cf fp=0xc000a57908 sp=0xc000a57898 pc=0xcf22ef
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc0001443e8?, {{0x22}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x45 fp=0xc000a57958 sp=0xc000a57908 pc=0xcf20e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a5ea80, 0x137, {{0x22}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000a57c98 sp=0xc000a57958 pc=0xa2b14b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a5ea80, 0xc000d21380?, {{0x22}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000a57cf8 sp=0xc000a57c98 pc=0xa2c734
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0004a4040?, 0xc000a57e40?, {{0x22}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000a57d58 sp=0xc000a57cf8 pc=0xa2c325
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0001fcd10?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000a57e50 sp=0xc000a57d58 pc=0xa2bfec
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000901080?, 0xc000a5ea80)
	pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc000a57f60 sp=0xc000a57e50 pc=0xa1dda5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a5ea80, 0x23)
	pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc000a57fc0 sp=0xc000a57f60 pc=0xa1c5ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc000a57fe0 sp=0xc000a57fc0 pc=0xa295ea
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000a57fe8 sp=0xc000a57fe0 pc=0x469321
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0x105