panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x60 pc=0x999fd9]

goroutine 292 [running]:
panic({0xf39680, 0x1ba4260})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc0001e74e8 sp=0xc0001e7428 pc=0x4359f7
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc0001e7538 sp=0xc0001e74e8 pc=0x44c3f6
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(...)
	pkg/sentry/mm/lifecycle.go:246
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc0006e8040)
	pkg/sentry/kernel/task_usermem.go:353 +0x59 fp=0xc0001e7558 sp=0xc0001e7538 pc=0x999fd9
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc0006e8040, 0x44d7f2?, {0xc0001f93c4, 0x10, 0x90})
	pkg/sentry/kernel/task_usermem.go:361 +0x73 fp=0xc0001e75f8 sp=0xc0001e7558 pc=0x99a0b3
gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x12caa58?, 0xc0006e8040?}, 0xc0001f8a80, 0x15a112d?, {0xc0001f93c4, 0x7f52f52cd428?, 0x90})
	pkg/sentry/kernel/task_usermem.go:261 +0x46 fp=0xc0001e7630 sp=0xc0001e75f8 pc=0x999966
gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x12caa58, 0xc0006e8040}, 0xc0001f8a80, 0x20000900, 0x1)
	pkg/sentry/kernel/task_usermem.go:231 +0x1ee fp=0xc0001e76d0 sp=0xc0001e7630 pc=0x9997ee
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(...)
	pkg/sentry/kernel/task_usermem.go:387
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc0002daa80, 0xc0001f8a80, 0x300000002?, 0xc0002b4680?, 0xc0001e7830?, 0x463d5b?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x17e fp=0xc0001e77e0 sp=0xc0001e76d0 pc=0xc1097e
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0xcb074?, {{0xc}, {0x20000580}, {0x2}, {0x20000900}, {0x1}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x13c fp=0xc0001e7850 sp=0xc0001e77e0 pc=0xc1071c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0x9?, {{0xc}, {0x20000580}, {0x2}, {0x20000900}, {0x1}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x3b fp=0xc0001e78a0 sp=0xc0001e7850 pc=0xc105bb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0002daa80, 0x137, {{0xc}, {0x20000580}, {0x2}, {0x20000900}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc0001e7c90 sp=0xc0001e78a0 pc=0x996695
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0002daa80, 0xc0002d01c8?, {{0xc}, {0x20000580}, {0x2}, {0x20000900}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc0001e7cf0 sp=0xc0001e7c90 pc=0x9978ca
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x0?, 0xc000634000?, {{0xc}, {0x20000580}, {0x2}, {0x20000900}, {0x1}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc0001e7d50 sp=0xc0001e7cf0 pc=0x9975a5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0004fd5f0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc0001e7e48 sp=0xc0001e7d50 pc=0x997310
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0002daa80?, 0xc0002daa80)
	pkg/sentry/kernel/task_run.go:253 +0xdea fp=0xc0001e7f60 sp=0xc0001e7e48 pc=0x98b6ea
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0002daa80, 0xb)
	pkg/sentry/kernel/task_run.go:94 +0x1ac fp=0xc0001e7fc0 sp=0xc0001e7f60 pc=0x98a2ec
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc0001e7fe0 sp=0xc0001e7fc0 pc=0x994eea
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc0001e7fe8 sp=0xc0001e7fe0 pc=0x4694e1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0xf9