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

goroutine 3331521 [running]:
panic({0xf39680, 0x1ba4260})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc0008554e8 sp=0xc000855428 pc=0x4359f7
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc000855538 sp=0xc0008554e8 pc=0x44c3f6
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(...)
	pkg/sentry/mm/lifecycle.go:246
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc001c12fc0)
	pkg/sentry/kernel/task_usermem.go:353 +0x59 fp=0xc000855558 sp=0xc000855538 pc=0x999919
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc001c12fc0, 0x44d7f2?, {0xc005ebb3c4, 0x10, 0x90})
	pkg/sentry/kernel/task_usermem.go:361 +0x73 fp=0xc0008555f8 sp=0xc000855558 pc=0x9999f3
gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x12ca9d8?, 0xc001c12fc0?}, 0xc005ebaa80, 0xc000c315a8?, {0xc005ebb3c4, 0x7f8410414cf8?, 0x90})
	pkg/sentry/kernel/task_usermem.go:261 +0x46 fp=0xc000855630 sp=0xc0008555f8 pc=0x9992a6
gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x12ca9d8, 0xc001c12fc0}, 0xc005ebaa80, 0x20001740, 0x5)
	pkg/sentry/kernel/task_usermem.go:231 +0x1ee fp=0xc0008556d0 sp=0xc000855630 pc=0x99912e
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(...)
	pkg/sentry/kernel/task_usermem.go:387
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc0036c5500, 0xc005ebaa80, 0xc00573a720?, 0x0?, 0xc000855890?, 0xa0926a?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x17e fp=0xc0008557e0 sp=0xc0008556d0 pc=0xc102fe
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x5612b5293f88?, {{0xa687}, {0x20001480}, {0x5}, {0x20001740}, {0x5}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x13c fp=0xc000855850 sp=0xc0008557e0 pc=0xc1009c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc005d0ea80?, {{0xa687}, {0x20001480}, {0x5}, {0x20001740}, {0x5}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x3b fp=0xc0008558a0 sp=0xc000855850 pc=0xc0ff3b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005d0ea80, 0x137, {{0xa687}, {0x20001480}, {0x5}, {0x20001740}, {0x5}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc000855c90 sp=0xc0008558a0 pc=0x995fd5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005d0ea80, 0xc01c9542b8?, {{0xa687}, {0x20001480}, {0x5}, {0x20001740}, {0x5}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc000855cf0 sp=0xc000855c90 pc=0x99720a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x2?, 0xc00040c000?, {{0xa687}, {0x20001480}, {0x5}, {0x20001740}, {0x5}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc000855d50 sp=0xc000855cf0 pc=0x996ee5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00513ac30?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc000855e48 sp=0xc000855d50 pc=0x996c50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc006099100?, 0xc005d0ea80)
	pkg/sentry/kernel/task_run.go:253 +0xdea fp=0xc000855f60 sp=0xc000855e48 pc=0x98b02a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005d0ea80, 0xa41d)
	pkg/sentry/kernel/task_run.go:94 +0x1ac fp=0xc000855fc0 sp=0xc000855f60 pc=0x989c2c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc000855fe0 sp=0xc000855fc0 pc=0x99482a
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000855fe8 sp=0xc000855fe0 pc=0x4694e1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0xf9