panic: invalid allocation length: 0x0

goroutine 3124318 [running]:
panic({0xfe7060, 0xc00051fe40})
	GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc00118f090 sp=0xc00118efd0 pc=0x435148
gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0xc002760c00, 0xc007e8f380, {0x8d7a00, 0xc0026ca050})
	pkg/sentry/pgalloc/pgalloc.go:417 +0x545 fp=0xc00118f1a0 sp=0xc00118f090 pc=0x7d28e5
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc008346000, {0x1394d10, 0xc00a14aa80}, {0xc005ec2800, 0x8975a7}, {0x9af5da, 0x0}, {0x0, 0x1, 0x0})
	pkg/sentry/mm/pma.go:243 +0x1746 fp=0xc00118f5c8 sp=0xc00118f1a0 pc=0x880046
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0x99cb4f, {0x1394d10, 0xc00a14aa80}, {0xc005ec2800, 0xc00018f698}, {0x99ca66, 0xc0070c9c78}, {0x0, 0x1, 0x0})
	pkg/sentry/mm/pma.go:125 +0xbf fp=0xc00118f658 sp=0xc00118f5c8 pc=0x87e31f
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc008346000, {0x1394d10, 0xc00a14aa80}, {0x0, 0x0}, {0x80, 0x7f, 0x20}, 0x7, 0x1214c68)
	pkg/sentry/mm/io.go:542 +0x2e5 fp=0xc00118f748 sp=0xc00118f658 pc=0x879505
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).EnsurePMAsExist(0x55c0f0b06f68, {0x1394d10, 0xc00a14aa80}, 0x0, 0xc00352b8c0, {0x0, 0x81})
	pkg/sentry/mm/io.go:322 +0x77 fp=0xc00118f790 sp=0xc00118f748 pc=0x878377
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.getdents(0xc00a14aa80, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}, 0x0)
	pkg/sentry/syscalls/linux/vfs2/getdents.go:53 +0x131 fp=0xc00118f858 sp=0xc00118f790 pc=0xcb6a51
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Getdents(0xc00a14aa80, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/getdents.go:31 +0x38 fp=0xc00118f8a8 sp=0xc00118f858 pc=0xcb6898
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00a14aa80, 0x4e, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x825 fp=0xc00118fcb0 sp=0xc00118f8a8 pc=0x9ba365
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00a14aa80, 0x0, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4d fp=0xc00118fd20 sp=0xc00118fcb0 pc=0x9bb68d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc005ed0c68, 0x1394d10, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc00118fd80 sp=0xc00118fd20 pc=0x9bb345
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00a14aa80)
	pkg/sentry/kernel/task_syscall.go:257 +0x31a fp=0xc00118fe48 sp=0xc00118fd80 pc=0x9bb07a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0050bab00, 0xc00a14aa80)
	pkg/sentry/kernel/task_run.go:247 +0xe45 fp=0xc00118ff70 sp=0xc00118fe48 pc=0x9af145
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00a14aa80)
	pkg/sentry/kernel/task_run.go:90 +0x1a2 fp=0xc00118ffc8 sp=0xc00118ff70 pc=0x9adca2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·239()
	pkg/sentry/kernel/task_start.go:364 +0x26 fp=0xc00118ffe0 sp=0xc00118ffc8 pc=0x9b8ac6
runtime.goexit()
	src/runtime/asm_amd64.s:1581 +0x1 fp=0xc00118ffe8 sp=0xc00118ffe0 pc=0x4692a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:364 +0xe7