panic: invalid allocation length: 0x0

goroutine 796443 [running]:
panic({0x10e8c80, 0xc008b5f7a0})
	GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc003015170 sp=0xc0030150b0 pc=0x435148
gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0xc0010c6c00, 0x1, {0x0, 0x7})
	pkg/sentry/pgalloc/pgalloc.go:417 +0x5f4 fp=0xc003015280 sp=0xc003015170 pc=0x81b614
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc006119000, {0x14ca230, 0xc008f12000}, {0xc00690e800, 0x2}, {0xc003015718, 0x9022d8}, {0x0, 0x1, 0x0})
	pkg/sentry/mm/pma.go:243 +0x1949 fp=0xc003015688 sp=0xc003015280 pc=0x8e5629
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc008f12000, {0x14ca230, 0xc008f12000}, {0xc00690e800, 0xa28966}, {0xc008f12000, 0xc003015810}, {0x0, 0x1, 0x0})
	pkg/sentry/mm/pma.go:125 +0x10e fp=0xc003015728 sp=0xc003015688 pc=0x8e374e
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc006119000, {0x14ca230, 0xc008f12000}, {0xc003015860, 0xc01104e880}, {0x40, 0x75, 0xe0}, 0xd, 0x1326e60)
	pkg/sentry/mm/io.go:542 +0x289 fp=0xc003015810 sp=0xc003015728 pc=0x8dd229
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).EnsurePMAsExist(0x55fd375c1f68, {0x14ca230, 0xc008f12000}, 0x0, 0xc0128cd680, {0x0, 0xd3})
	pkg/sentry/mm/io.go:322 +0xab fp=0xc003015858 sp=0xc003015810 pc=0x8dbd2b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.getdents(0xc008f12000, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}, 0x0)
	pkg/sentry/syscalls/linux/vfs2/getdents.go:53 +0x177 fp=0xc003015920 sp=0xc003015858 pc=0xd91bf7
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Getdents(0xc008f12000, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/getdents.go:31 +0x45 fp=0xc003015970 sp=0xc003015920 pc=0xd919c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc008f12000, 0x4e, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x7db fp=0xc003015cb8 sp=0xc003015970 pc=0xa4bf7b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc008f12000, 0x0, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x57 fp=0xc003015d28 sp=0xc003015cb8 pc=0xa4d597
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00ba540d0, 0x14da818, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc003015d88 sp=0xc003015d28 pc=0xa4d145
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc008f12000)
	pkg/sentry/kernel/task_syscall.go:257 +0x3a5 fp=0xc003015e50 sp=0xc003015d88 pc=0xa4ce05
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc01104e780, 0xc008f12000)
	pkg/sentry/kernel/task_run.go:247 +0x112a fp=0xc003015f70 sp=0xc003015e50 pc=0xa3ec0a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc008f12000)
	pkg/sentry/kernel/task_run.go:90 +0x1ec fp=0xc003015fc8 sp=0xc003015f70 pc=0xa3d42c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·239()
	pkg/sentry/kernel/task_start.go:364 +0x26 fp=0xc003015fe0 sp=0xc003015fc8 pc=0xa4a426
runtime.goexit()
	src/runtime/asm_amd64.s:1581 +0x1 fp=0xc003015fe8 sp=0xc003015fe0 pc=0x4692a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:364 +0xf5