panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x60 pc=0x999919]

goroutine 325 [running]:
panic({0xf39680, 0x1ba4260})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00098d5c0 sp=0xc00098d500 pc=0x4359f7
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00098d610 sp=0xc00098d5c0 pc=0x44c3f6
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(...)
	pkg/sentry/mm/lifecycle.go:246
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc0004f2220)
	pkg/sentry/kernel/task_usermem.go:353 +0x59 fp=0xc00098d630 sp=0xc00098d610 pc=0x999919
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc0004f2220, 0xc0004f2240?, {0xc000b00000, 0x7ffff000, 0x7ffff000})
	pkg/sentry/kernel/task_usermem.go:361 +0x73 fp=0xc00098d6d0 sp=0xc00098d630 pc=0x9999f3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc00034f500, 0xc00034f500, 0x300000002?, 0xc0006b8820?, 0xc00098d830?, 0x463d5b?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:186 +0x3a9 fp=0xc00098d7e0 sp=0xc00098d6d0 pc=0xc10529
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x68ee1?, {{0x13}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x13c fp=0xc00098d850 sp=0xc00098d7e0 pc=0xc1009c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc0006b8820?, {{0x13}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x3b fp=0xc00098d8a0 sp=0xc00098d850 pc=0xc0ff3b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000021500, 0x137, {{0x13}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc00098dc90 sp=0xc00098d8a0 pc=0x995fd5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000021500, 0xc0002d2678?, {{0x13}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc00098dcf0 sp=0xc00098dc90 pc=0x99720a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x0?, 0xc000612000?, {{0x13}, {0x200000c0}, {0x1}, {0x20000ac0}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc00098dd50 sp=0xc00098dcf0 pc=0x996ee5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00053d5f0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc00098de48 sp=0xc00098dd50 pc=0x996c50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0004da280?, 0xc000021500)
	pkg/sentry/kernel/task_run.go:253 +0xdea fp=0xc00098df60 sp=0xc00098de48 pc=0x98b02a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000021500, 0x14)
	pkg/sentry/kernel/task_run.go:94 +0x1ac fp=0xc00098dfc0 sp=0xc00098df60 pc=0x989c2c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc00098dfe0 sp=0xc00098dfc0 pc=0x99482a
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00098dfe8 sp=0xc00098dfe0 pc=0x4694e1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0xf9