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

goroutine 351561 [running]:
panic({0x1040680, 0x1e6e7a0})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000a4d688 sp=0xc000a4d5c8 pc=0x435837
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc000a4d6d8 sp=0xc000a4d688 pc=0x44c236
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0xc08c580000?)
	pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc000a4d6e0 sp=0xc000a4d6d8 pc=0x8d32f9
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc0023b4100)
	pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc000a4d700 sp=0xc000a4d6e0 pc=0xa2f84f
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc0023b4100, 0xc000000000?, {0xc00c580000, 0x0, 0x7ffff000})
	pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc000a4d7a0 sp=0xc000a4d700 pc=0xa2f93d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc002ee7500, 0xc002ee7500, 0x0?, 0x55e06f91ef8c?, 0xc000a4d948?, 0xaab9f2?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:186 +0x449 fp=0xc000a4d898 sp=0xc000a4d7a0 pc=0xcf2869
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x55e06f91ef8c?, {{0x31bc}, {0x20000340}, {0x1}, {0x20001640}, {0x2}, {0x0}}, 0x0)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:155 +0x205 fp=0xc000a4d908 sp=0xc000a4d898 pc=0xcf2325
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMReadv(0xc00542c000?, {{0x31bc}, {0x20000340}, {0x1}, {0x20001640}, {0x2}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:109 +0x45 fp=0xc000a4d958 sp=0xc000a4d908 pc=0xcf2065
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00542c000, 0x136, {{0x31bc}, {0x20000340}, {0x1}, {0x20001640}, {0x2}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000a4dc98 sp=0xc000a4d958 pc=0xa2b14b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00542c000, 0x85?, {{0x31bc}, {0x20000340}, {0x1}, {0x20001640}, {0x2}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000a4dcf8 sp=0xc000a4dc98 pc=0xa2c734
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x8bfd4f?, 0x0?, {{0x31bc}, {0x20000340}, {0x1}, {0x20001640}, {0x2}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000a4dd58 sp=0xc000a4dcf8 pc=0xa2c325
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001f224e0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000a4de50 sp=0xc000a4dd58 pc=0xa2bfec
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0072ca380?, 0xc00542c000)
	pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc000a4df60 sp=0xc000a4de50 pc=0xa1dda5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00542c000, 0x31e8)
	pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc000a4dfc0 sp=0xc000a4df60 pc=0xa1c5ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc000a4dfe0 sp=0xc000a4dfc0 pc=0xa295ea
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000a4dfe8 sp=0xc000a4dfe0 pc=0x469321
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0x105