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

goroutine 480415 [running]:
panic({0x1040680, 0x1e6e7a0})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc0008f1688 sp=0xc0008f15c8 pc=0x435837
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc0008f16d8 sp=0xc0008f1688 pc=0x44c236
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0xc08bd3e000?)
	pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc0008f16e0 sp=0xc0008f16d8 pc=0x8d32f9
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc0047aa000)
	pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc0008f1700 sp=0xc0008f16e0 pc=0xa2f84f
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc0047aa000, 0x0?, {0xc00bd3e000, 0x7ffff000, 0x7ffff000})
	pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc0008f17a0 sp=0xc0008f1700 pc=0xa2f93d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc005fae000, 0xc005fae000, 0xc004d1f620?, 0x0?, 0xc00122d948?, 0xaab8c5?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:186 +0x449 fp=0xc0008f1898 sp=0xc0008f17a0 pc=0xcf2869
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x5605c9332f88?, {{0x4582}, {0x20008400}, {0x2}, {0x20008640}, {0x286}, {0x0}}, 0x0)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:155 +0x205 fp=0xc0008f1908 sp=0xc0008f1898 pc=0xcf2325
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMReadv(0xc0052cea80?, {{0x4582}, {0x20008400}, {0x2}, {0x20008640}, {0x286}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:109 +0x45 fp=0xc0008f1958 sp=0xc0008f1908 pc=0xcf2065
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0052cea80, 0x136, {{0x4582}, {0x20008400}, {0x2}, {0x20008640}, {0x286}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc0008f1c98 sp=0xc0008f1958 pc=0xa2b14b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0052cea80, 0x85?, {{0x4582}, {0x20008400}, {0x2}, {0x20008640}, {0x286}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc0008f1cf8 sp=0xc0008f1c98 pc=0xa2c734
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x8bfd4f?, 0x1?, {{0x4582}, {0x20008400}, {0x2}, {0x20008640}, {0x286}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc0008f1d58 sp=0xc0008f1cf8 pc=0xa2c325
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0095a0680?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc0008f1e50 sp=0xc0008f1d58 pc=0xa2bfec
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002243c80?, 0xc0052cea80)
	pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc0008f1f60 sp=0xc0008f1e50 pc=0xa1dda5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0052cea80, 0x45ab)
	pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc0008f1fc0 sp=0xc0008f1f60 pc=0xa1c5ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc0008f1fe0 sp=0xc0008f1fc0 pc=0xa295ea
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc0008f1fe8 sp=0xc0008f1fe0 pc=0x469321
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0x105