panic: invalid allocation length: 0x0

goroutine 124079 [running]:
panic({0x17130e0, 0xc007829bf0})
	GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc000b12988 sp=0xc000b128c8 pc=0x437c88
gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0xc00044a300, 0x0, {0x471017, 0xc0001bf620})
	pkg/sentry/pgalloc/pgalloc.go:417 +0x5c6 fp=0xc000b12af8 sp=0xc000b12988 pc=0xa3af46
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc0036bf000, {0x1be6590, 0xc00408ea80}, {0xc003b6e000, 0xb74d0c}, {0xc0036bf080, 0x0}, {0x0, 0x1, 0x0})
	pkg/sentry/mm/pma.go:243 +0x1df7 fp=0xc000b130b8 sp=0xc000b12af8 pc=0xb4f7b7
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc000b13288, {0x1be6590, 0xc00408ea80}, {0xc003b6e000, 0x6729a0}, {0x44a101, 0x159be60}, {0x0, 0x1, 0x0})
	pkg/sentry/mm/pma.go:125 +0x126 fp=0xc000b131a0 sp=0xc000b130b8 pc=0xb4d0c6
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc0036bf000, {0x1be6590, 0xc00408ea80}, {0xc004b77480, 0xc0049c1900}, {0x65, 0xe, 0x47}, 0x0, 0x1947168)
	pkg/sentry/mm/io.go:542 +0x3d3 fp=0xc000b13330 sp=0xc000b131a0 pc=0xb45213
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).EnsurePMAsExist(0xc0036bf000, {0x1be6590, 0xc00408ea80}, 0x0, 0x0, {0x37, 0xe})
	pkg/sentry/mm/io.go:322 +0x135 fp=0xc000b133a8 sp=0xc000b13330 pc=0xb43715
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.getdents(0xc00408ea80, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}, 0x37)
	pkg/sentry/syscalls/linux/vfs2/getdents.go:53 +0x193 fp=0xc000b134d0 sp=0xc000b133a8 pc=0x119f473
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Getdents(0xc00408ea80, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/getdents.go:31 +0x56 fp=0xc000b13548 sp=0xc000b134d0 pc=0x119f1b6
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00408ea80, 0x4e, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9d8 fp=0xc000b13a90 sp=0xc000b13548 pc=0xd3e5b8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00408ea80, 0x46f779, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x6a fp=0xc000b13b18 sp=0xc000b13a90 pc=0xd401aa
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc003859770, 0x46fc2c, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc000b13b90 sp=0xc000b13b18 pc=0xd3fc2f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00408ea80)
	pkg/sentry/kernel/task_syscall.go:257 +0x3e7 fp=0xc000b13c98 sp=0xc000b13b90 pc=0xd3f847
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00408ea80, 0xc00408ea80)
	pkg/sentry/kernel/task_run.go:247 +0x16b8 fp=0xc000b13ed0 sp=0xc000b13c98 pc=0xd2ab78
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00408ea80)
	pkg/sentry/kernel/task_run.go:90 +0x35b fp=0xc000b13fc0 sp=0xc000b13ed0 pc=0xd28abb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·239()
	pkg/sentry/kernel/task_start.go:364 +0x3a fp=0xc000b13fe0 sp=0xc000b13fc0 pc=0xd3c0da
runtime.goexit()
	src/runtime/asm_amd64.s:1581 +0x1 fp=0xc000b13fe8 sp=0xc000b13fe0 pc=0x46e001
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:364 +0x191