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

goroutine 621416 [running]:
panic({0x1040680, 0x1e6e7a0})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000b0d578 sp=0xc000b0d4b8 pc=0x435837
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc000b0d5c8 sp=0xc000b0d578 pc=0x44c236
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0x140f5f0?)
	pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc000b0d5d0 sp=0xc000b0d5c8 pc=0x8d32f9
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc0088ad9c0)
	pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc000b0d5f0 sp=0xc000b0d5d0 pc=0xa2f84f
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc0088ad9c0, 0x44d632?, {0xc00945c944, 0x10, 0x90})
	pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc000b0d690 sp=0xc000b0d5f0 pc=0xa2f93d
gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1404d78?, 0xc0088ad9c0?}, 0xc00945c000, 0xc00888f1a0?, {0xc00945c944, 0xc000b0d768?, 0x90})
	pkg/sentry/kernel/task_usermem.go:261 +0x50 fp=0xc000b0d6c8 sp=0xc000b0d690 pc=0xa2efd0
gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1404d78, 0xc0088ad9c0}, 0xc00945c000, 0x20001780, 0x2)
	pkg/sentry/kernel/task_usermem.go:231 +0x286 fp=0xc000b0d768 sp=0xc000b0d6c8 pc=0xa2ee06
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0x0?, 0x0?, 0xa07920?)
	pkg/sentry/kernel/task_usermem.go:387 +0x3a fp=0xc000b0d7a0 sp=0xc000b0d768 pc=0xa2fe5a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc00907f500, 0xc00945c000, 0xc0018c6ba0?, 0x0?, 0xc000b0d948?, 0xaab8c5?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x190 fp=0xc000b0d898 sp=0xc000b0d7a0 pc=0xcf25b0
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x558a62bd9f88?, {{0x36e9}, {0x20001540}, {0x3}, {0x20001780}, {0x2}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1cf fp=0xc000b0d908 sp=0xc000b0d898 pc=0xcf22ef
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc0094bc000?, {{0x36e9}, {0x20001540}, {0x3}, {0x20001780}, {0x2}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x45 fp=0xc000b0d958 sp=0xc000b0d908 pc=0xcf20e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0094bc000, 0x137, {{0x36e9}, {0x20001540}, {0x3}, {0x20001780}, {0x2}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000b0dc98 sp=0xc000b0d958 pc=0xa2b14b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0094bc000, 0x85?, {{0x36e9}, {0x20001540}, {0x3}, {0x20001780}, {0x2}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000b0dcf8 sp=0xc000b0dc98 pc=0xa2c734
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000b0dda0?, 0x9e1546?, {{0x36e9}, {0x20001540}, {0x3}, {0x20001780}, {0x2}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000b0dd58 sp=0xc000b0dcf8 pc=0xa2c325
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00928e9c0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000b0de50 sp=0xc000b0dd58 pc=0xa2bfec
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a80000?, 0xc0094bc000)
	pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc000b0df60 sp=0xc000b0de50 pc=0xa1dda5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0094bc000, 0x3716)
	pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc000b0dfc0 sp=0xc000b0df60 pc=0xa1c5ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc000b0dfe0 sp=0xc000b0dfc0 pc=0xa295ea
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000b0dfe8 sp=0xc000b0dfe0 pc=0x469321
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0x105