panic: invalid allocation length: 0x0 goroutine 350250 gp=0x40022be000 m=9 mp=0x4000397508 [running]: panic({0xc8e6e0?, 0x400306d2c0?}) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x40007d74a0 sp=0x40007d73f0 pc=0x84314 gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0x1bf77f0?, 0xc912a0?, {0x1, 0x6, 0x0, 0x0, 0x0, 0x0}) pkg/sentry/pgalloc/pgalloc.go:639 +0x570 fp=0x40007d75f0 sp=0x40007d74a0 pc=0x4219d0 gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0x400164e290, {0x110cff0, 0x4001135208}, 0x4001db40d0) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:78 +0x24c fp=0x40007d76c0 sp=0x40007d75f0 pc=0x6ae81c gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0x400164e288, {0x110cff0?, 0x4001135208?}, {0x4001db40d0, 0x1, 0x0, 0x400283f008, 0x4004a8c2f0, 0x4003313890, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x274 fp=0x40007d7710 sp=0x40007d76c0 pc=0x6ac1f4 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0x4001135208, {0x600e28?, 0x40007d7898?}, {0xfffeea514118, 0x4004a8c200}, 0xeb4120?, {0x4001135d1c?, 0x649dcc?, 0x40027e0008?}) pkg/sentry/socket/netstack/netstack.go:2748 +0x2e8 fp=0x40007d7840 sp=0x40007d7710 pc=0x764f48 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1bf48b0?, {0x111eeb8?, 0x4002709400?}, {0xfffeea514118?, 0x4004a8c200?}, 0x4001135d1c?, 0x10?, {0x4001135d1c?, 0x110cff0?, 0x4001135208?}) pkg/sentry/socket/netstack/netstack.go:1873 +0x144 fp=0x40007d78a0 sp=0x40007d7840 pc=0x762014 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0x4002709400, 0x4001135208?, 0x107?, 0x5?, {0x4001135d1c, 0x10?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x274 fp=0x40007d7950 sp=0x40007d78a0 pc=0x75ca34 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0x4001135208, 0x1d?, {{0x7}, {0x107}, {0x5}, {0x20005240}, {0x10}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x1b0 fp=0x40007d7a30 sp=0x40007d7950 pc=0x7d94a0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4001135208, 0xd0, {{0x7}, {0x107}, {0x5}, {0x20005240}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x4e8 fp=0x40007d7c60 sp=0x40007d7a30 pc=0x647d28 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4001135208, 0xd0, {{0x7}, {0x107}, {0x5}, {0x20005240}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x3c fp=0x40007d7cc0 sp=0x40007d7c60 pc=0x648c5c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4001135208, 0xd0, {{0x7}, {0x107}, {0x5}, {0x20005240}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x58 fp=0x40007d7d10 sp=0x40007d7cc0 pc=0x6488d8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4000028e70?) pkg/sentry/kernel/task_syscall.go:258 +0x23c fp=0x40007d7df0 sp=0x40007d7d10 pc=0x64868c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x40032c74d0?, 0x4001135208) pkg/sentry/kernel/task_run.go:269 +0xce4 fp=0x40007d7f10 sp=0x40007d7df0 pc=0x63e544 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4001135208, 0x85bd) pkg/sentry/kernel/task_run.go:97 +0x1d4 fp=0x40007d7fb0 sp=0x40007d7f10 pc=0x63d1d4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x2c fp=0x40007d7fd0 sp=0x40007d7fb0 pc=0x6468bc runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0x40007d7fd0 sp=0x40007d7fd0 pc=0x8d564 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 350272 pkg/sentry/kernel/task_start.go:412 +0xc4