panic: invalid allocation length: 0x0 goroutine 560483 [running]: panic({0x10e8c80, 0xc0073c9e70}) GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc00103b170 sp=0xc00103b0b0 pc=0x435148 gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0xc0060acc00, 0xc008a00000, {0xc00103b2b8, 0x94b2b1}) pkg/sentry/pgalloc/pgalloc.go:417 +0x5f4 fp=0xc00103b280 sp=0xc00103b170 pc=0x81b614 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc008f4f000, {0x14ca230, 0xc008a00000}, {0xc005bea800, 0x438107}, {0xc00103b718, 0x9022d8}, {0x0, 0x1, 0x0}) pkg/sentry/mm/pma.go:243 +0x1949 fp=0xc00103b688 sp=0xc00103b280 pc=0x8e5629 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0x14ca230, {0x14ca230, 0xc008a00000}, {0xc005bea800, 0xd8e56a}, {0xc001e49018, 0xc008a00000}, {0x0, 0x1, 0x0}) pkg/sentry/mm/pma.go:125 +0x10e fp=0xc00103b728 sp=0xc00103b688 pc=0x8e374e gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc008f4f000, {0x14ca230, 0xc008a00000}, {0x14cd300, 0xc00414e620}, {0x40, 0x87, 0xe3}, 0x9, 0x1326e60) pkg/sentry/mm/io.go:542 +0x289 fp=0xc00103b810 sp=0xc00103b728 pc=0x8dd229 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).EnsurePMAsExist(0xf4240, {0x14ca230, 0xc008a00000}, 0x0, 0x0, {0x0, 0x0}) pkg/sentry/mm/io.go:322 +0xab fp=0xc00103b858 sp=0xc00103b810 pc=0x8dbd2b gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.getdents(0xc008a00000, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}, 0x0) pkg/sentry/syscalls/linux/vfs2/getdents.go:53 +0x177 fp=0xc00103b920 sp=0xc00103b858 pc=0xd91bf7 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Getdents(0xc008a00000, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/getdents.go:31 +0x45 fp=0xc00103b970 sp=0xc00103b920 pc=0xd919c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc008a00000, 0x4e, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x7db fp=0xc00103bcb8 sp=0xc00103b970 pc=0xa4bf7b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc008a00000, 0x0, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x57 fp=0xc00103bd28 sp=0xc00103bcb8 pc=0xa4d597 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc006b72d18, 0x9080a0, {{0x3}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc00103bd88 sp=0xc00103bd28 pc=0xa4d145 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc008a00000) pkg/sentry/kernel/task_syscall.go:257 +0x3a5 fp=0xc00103be50 sp=0xc00103bd88 pc=0xa4ce05 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000b2db80, 0xc008a00000) pkg/sentry/kernel/task_run.go:247 +0x112a fp=0xc00103bf70 sp=0xc00103be50 pc=0xa3ec0a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc008a00000) pkg/sentry/kernel/task_run.go:90 +0x1ec fp=0xc00103bfc8 sp=0xc00103bf70 pc=0xa3d42c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·239() pkg/sentry/kernel/task_start.go:364 +0x26 fp=0xc00103bfe0 sp=0xc00103bfc8 pc=0xa4a426 runtime.goexit() src/runtime/asm_amd64.s:1581 +0x1 fp=0xc00103bfe8 sp=0xc00103bfe0 pc=0x4692a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:364 +0xf5