panic: invalid allocation length: 0x0 goroutine 50704 gp=0x4001c61dc0 m=115 mp=0x4001885808 [running]: panic({0xc8e6e0?, 0x4003400e00?}) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x40001f74a0 sp=0x40001f73f0 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=0x40001f75f0 sp=0x40001f74a0 pc=0x4219d0 gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0x400016cf10, {0x110cff0, 0x4000c00008}, 0x40032b8660) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:78 +0x24c fp=0x40001f76c0 sp=0x40001f75f0 pc=0x6ae81c gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0x400016cf08, {0x110cff0?, 0x4000c00008?}, {0x40032b8660, 0x1, 0x1, 0x400044f808, 0x400021a4f0, 0x4002d771a0, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x274 fp=0x40001f7710 sp=0x40001f76c0 pc=0x6ac1f4 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0x4000c00008, {0x40046c9208?, 0x40001f7898?}, {0xffff5d8177c0, 0x400021a400}, 0xeb4120?, {0x4000c00b1c?, 0x649dcc?, 0x40046e4008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x2e0 fp=0x40001f7840 sp=0x40001f7710 pc=0x764f40 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1bf48b0?, {0x111eeb8?, 0x40011937c0?}, {0xffff5d8177c0?, 0x400021a400?}, 0x4000c00b1c?, 0x1c?, {0x4000c00b1c?, 0x110cff0?, 0x4000c00008?}) pkg/sentry/socket/netstack/netstack.go:1873 +0x144 fp=0x40001f78a0 sp=0x40001f7840 pc=0x762014 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0x40011937c0, 0x4000c00008?, 0x107?, 0x5?, {0x4000c00b1c, 0x1c?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x274 fp=0x40001f7950 sp=0x40001f78a0 pc=0x75ca34 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0x4000c00008, 0x40000002?, {{0x3}, {0x107}, {0x5}, {0x20000000}, {0x1c}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x1b0 fp=0x40001f7a30 sp=0x40001f7950 pc=0x7d94b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4000c00008, 0xd0, {{0x3}, {0x107}, {0x5}, {0x20000000}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x4e8 fp=0x40001f7c60 sp=0x40001f7a30 pc=0x647d28 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4000c00008, 0xd0, {{0x3}, {0x107}, {0x5}, {0x20000000}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x3c fp=0x40001f7cc0 sp=0x40001f7c60 pc=0x648c5c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4000c00008, 0xd0, {{0x3}, {0x107}, {0x5}, {0x20000000}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x58 fp=0x40001f7d10 sp=0x40001f7cc0 pc=0x6488d8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4000893930?) pkg/sentry/kernel/task_syscall.go:258 +0x23c fp=0x40001f7df0 sp=0x40001f7d10 pc=0x64868c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4003682a20?, 0x4000c00008) pkg/sentry/kernel/task_run.go:269 +0xce4 fp=0x40001f7f10 sp=0x40001f7df0 pc=0x63e544 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4000c00008, 0x3ad0) pkg/sentry/kernel/task_run.go:97 +0x1d4 fp=0x40001f7fb0 sp=0x40001f7f10 pc=0x63d1d4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x2c fp=0x40001f7fd0 sp=0x40001f7fb0 pc=0x6468bc runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0x40001f7fd0 sp=0x40001f7fd0 pc=0x8d564 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 50702 pkg/sentry/kernel/task_start.go:412 +0xc4