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

goroutine 327 [running]:
panic({0x1040680, 0x1e6e780})
	GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00087b578 sp=0xc00087b4b8 pc=0x435837
runtime.panicmem(...)
	GOROOT/src/runtime/panic.go:220
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00087b5c8 sp=0xc00087b578 pc=0x44c236
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0x140f6b0?)
	pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc00087b5d0 sp=0xc00087b5c8 pc=0x8d32f9
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc000544960)
	pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc00087b5f0 sp=0xc00087b5d0 pc=0xa2ff6f
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc000544960, 0x44d632?, {0xc0005f9e44, 0x10, 0x90})
	pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc00087b690 sp=0xc00087b5f0 pc=0xa3005d
gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1404e38?, 0xc000544960?}, 0xc0005f9500, 0xc00087b748?, {0xc0005f9e44, 0xc00087b768?, 0x90})
	pkg/sentry/kernel/task_usermem.go:261 +0x50 fp=0xc00087b6c8 sp=0xc00087b690 pc=0xa2f6f0
gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1404e38, 0xc000544960}, 0xc0005f9500, 0x20000a00, 0x4)
	pkg/sentry/kernel/task_usermem.go:231 +0x286 fp=0xc00087b768 sp=0xc00087b6c8 pc=0xa2f526
gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0xc0004fe780?, 0xc00087b818?, 0x8349ef?)
	pkg/sentry/kernel/task_usermem.go:387 +0x3a fp=0xc00087b7a0 sp=0xc00087b768 pc=0xa3057a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc000722a80, 0xc0005f9500, 0x7f84344f4000?, 0x0?, 0xc00087b8f4?, 0xc00087b8f8?)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x190 fp=0xc00087b898 sp=0xc00087b7a0 pc=0xcf2c70
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x0?, {{0x22}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}}, 0x1)
	pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1cf fp=0xc00087b908 sp=0xc00087b898 pc=0xcf29af
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0x0?, {{0x22}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x45 fp=0xc00087b958 sp=0xc00087b908 pc=0xcf27a5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000722a80, 0x137, {{0x22}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc00087bc98 sp=0xc00087b958 pc=0xa2b86b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000722a80, 0x85?, {{0x22}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc00087bcf8 sp=0xc00087bc98 pc=0xa2ce54
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x8bfd4f?, 0x0?, {{0x22}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc00087bd58 sp=0xc00087bcf8 pc=0xa2ca45
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00072eb60?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc00087be50 sp=0xc00087bd58 pc=0xa2c70c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0008a4e80?, 0xc000722a80)
	pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc00087bf60 sp=0xc00087be50 pc=0xa1e4c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000722a80, 0x21)
	pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc00087bfc0 sp=0xc00087bf60 pc=0xa1cd0c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc00087bfe0 sp=0xc00087bfc0 pc=0xa29d0a
runtime.goexit()
	src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00087bfe8 sp=0xc00087bfe0 pc=0x469321
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:370 +0x105