panic: invalid allocation length: 0x0 goroutine 9784 gp=0x400165e540 m=13 mp=0x400035f508 [running]: panic({0xc8e6e0?, 0x4002688bd0?}) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x40005354a0 sp=0x40005353f0 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=0x40005355f0 sp=0x40005354a0 pc=0x4219d0 gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0x40001e5910, {0x110cff0, 0x4001575908}, 0x40025e2510) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:78 +0x24c fp=0x40005356c0 sp=0x40005355f0 pc=0x6ae81c gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0x40001e5908, {0x110cff0?, 0x4001575908?}, {0x40025e2510, 0x1, 0x1, 0x40006f4808, 0x400248c4f0, 0x40021d5e60, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x274 fp=0x4000535710 sp=0x40005356c0 pc=0x6ac1f4 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0x4001575908, {0x0?, 0x4000535898?}, {0xfffebb8dd288, 0x400248c400}, 0xeb4120?, {0x400157641c?, 0x649dcc?, 0x40009c6008?}) pkg/sentry/socket/netstack/netstack.go:2745 +0x2e0 fp=0x4000535840 sp=0x4000535710 pc=0x764f40 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1bf48b0?, {0x111eeb8?, 0x40029cbe00?}, {0xfffebb8dd288?, 0x400248c400?}, 0x400157641c?, 0x1c?, {0x400157641c?, 0x110cff0?, 0x4001575908?}) pkg/sentry/socket/netstack/netstack.go:1873 +0x144 fp=0x40005358a0 sp=0x4000535840 pc=0x762014 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0x40029cbe00, 0x4001575908?, 0x107?, 0x5?, {0x400157641c, 0x1c?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x274 fp=0x4000535950 sp=0x40005358a0 pc=0x75ca34 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0x4001575908, 0x1d?, {{0x5}, {0x107}, {0x5}, {0x20000300}, {0x1c}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x1b0 fp=0x4000535a30 sp=0x4000535950 pc=0x7d94b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4001575908, 0xd0, {{0x5}, {0x107}, {0x5}, {0x20000300}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x4e8 fp=0x4000535c60 sp=0x4000535a30 pc=0x647d28 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4001575908, 0xd0, {{0x5}, {0x107}, {0x5}, {0x20000300}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x3c fp=0x4000535cc0 sp=0x4000535c60 pc=0x648c5c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4001575908, 0xd0, {{0x5}, {0x107}, {0x5}, {0x20000300}, {0x1c}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x58 fp=0x4000535d10 sp=0x4000535cc0 pc=0x6488d8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4000e442c0?) pkg/sentry/kernel/task_syscall.go:258 +0x23c fp=0x4000535df0 sp=0x4000535d10 pc=0x64868c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x40008838c0?, 0x4001575908) pkg/sentry/kernel/task_run.go:269 +0xce4 fp=0x4000535f10 sp=0x4000535df0 pc=0x63e544 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4001575908, 0xac4) pkg/sentry/kernel/task_run.go:97 +0x1d4 fp=0x4000535fb0 sp=0x4000535f10 pc=0x63d1d4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x2c fp=0x4000535fd0 sp=0x4000535fb0 pc=0x6468bc runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0x4000535fd0 sp=0x4000535fd0 pc=0x8d564 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 9829 pkg/sentry/kernel/task_start.go:412 +0xc4