panic: invalid allocation length: 0x0 goroutine 132984 [running]: panic({0x10e8c80, 0xc00a4bb000}) GOROOT/src/runtime/panic.go:1147 +0x3a8 fp=0xc0010cb170 sp=0xc0010cb0b0 pc=0x435148 gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0xc0040ec600, 0xa4f03b, {0x62a17f8f, 0xc0010cb2d8}) pkg/sentry/pgalloc/pgalloc.go:417 +0x5f4 fp=0xc0010cb280 sp=0xc0010cb170 pc=0x81b614 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsInternalLocked(0xc004544000, {0x14ca230, 0xc005546000}, {0xc0063db800, 0x438107}, {0xc0010cb718, 0x9022d8}, {0x0, 0x1, 0x0}) pkg/sentry/mm/pma.go:243 +0x1949 fp=0xc0010cb688 sp=0xc0010cb280 pc=0x8e5629 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0x0, {0x14ca230, 0xc005546000}, {0xc0063db800, 0xc00021e138}, {0xc002c66e38, 0xaccfa5}, {0x0, 0x1, 0x0}) pkg/sentry/mm/pma.go:125 +0x10e fp=0xc0010cb728 sp=0xc0010cb688 pc=0x8e374e gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc004544000, {0x14ca230, 0xc005546000}, {0x14cd300, 0xc003b95d80}, {0x0, 0xc3, 0xab}, 0x8, 0x1326e60) pkg/sentry/mm/io.go:542 +0x289 fp=0xc0010cb810 sp=0xc0010cb728 pc=0x8dd229 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).EnsurePMAsExist(0xf4240, {0x14ca230, 0xc005546000}, 0x0, 0x0, {0x0, 0x0}) pkg/sentry/mm/io.go:322 +0xab fp=0xc0010cb858 sp=0xc0010cb810 pc=0x8dbd2b gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.getdents(0xc005546000, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}, 0x0) pkg/sentry/syscalls/linux/vfs2/getdents.go:53 +0x177 fp=0xc0010cb920 sp=0xc0010cb858 pc=0xd91bf7 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Getdents(0xc005546000, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/getdents.go:31 +0x45 fp=0xc0010cb970 sp=0xc0010cb920 pc=0xd919c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc005546000, 0x4e, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x7db fp=0xc0010cbcb8 sp=0xc0010cb970 pc=0xa4bf7b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc005546000, 0x0, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x57 fp=0xc0010cbd28 sp=0xc0010cbcb8 pc=0xa4d597 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc002f5ab60, 0x14da818, {{0x4}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc0010cbd88 sp=0xc0010cbd28 pc=0xa4d145 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc005546000) pkg/sentry/kernel/task_syscall.go:257 +0x3a5 fp=0xc0010cbe50 sp=0xc0010cbd88 pc=0xa4ce05 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000be6980, 0xc005546000) pkg/sentry/kernel/task_run.go:247 +0x112a fp=0xc0010cbf70 sp=0xc0010cbe50 pc=0xa3ec0a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005546000) pkg/sentry/kernel/task_run.go:90 +0x1ec fp=0xc0010cbfc8 sp=0xc0010cbf70 pc=0xa3d42c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start·dwrap·239() pkg/sentry/kernel/task_start.go:364 +0x26 fp=0xc0010cbfe0 sp=0xc0010cbfc8 pc=0xa4a426 runtime.goexit() src/runtime/asm_amd64.s:1581 +0x1 fp=0xc0010cbfe8 sp=0xc0010cbfe0 pc=0x4692a1 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:364 +0xf5