panic: invalid allocation length: 0x0 goroutine 34974 gp=0x40010f7500 m=14 mp=0x400027bc08 [running]: panic({0xd9e8e0?, 0x400160ea40?}) bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x40016394b0 sp=0x4001639400 pc=0x84314 gvisor.dev/gvisor/pkg/sentry/pgalloc.(*MemoryFile).Allocate(0xffff22b03fc8?, 0x40011e1208?, {0x1, 0x6, 0x0, 0x0, 0x0, 0x0}) pkg/sentry/pgalloc/pgalloc.go:639 +0x744 fp=0x40016395f0 sp=0x40016394b0 pc=0x472124 gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*ringBuffer).init(0x4000350c90, {0x1248170, 0x40011e1208}, 0x4001606420) pkg/sentry/socket/netstack/packetmmap/ring_buffer.go:78 +0x22c fp=0x40016396c0 sp=0x40016395f0 pc=0x74f3dc gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init(0x4000350c88, {0x1248170?, 0x40011e1208?}, {0x4001606420, 0x1, 0x1, 0x4001af6808, 0x40017da0f0, 0x40015b9920, 0x0, ...}) pkg/sentry/socket/netstack/packetmmap/endpoint.go:128 +0x360 fp=0x4001639710 sp=0x40016396c0 pc=0x74cd80 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket(0x40011e1208, {0x0?, 0x4001639898?}, {0xffff22a96380, 0x40017da000}, 0xfc5480?, {0x40011e1d1c?, 0x6e1fd0?, 0x4001726008?}) pkg/sentry/socket/netstack/netstack.go:2748 +0x394 fp=0x4001639840 sp=0x4001639710 pc=0x8203b4 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt(0x1f37700?, {0x125a038?, 0x4001580500?}, {0xffff22a96380?, 0x40017da000?}, 0x40011e1d1c?, 0x10?, {0x40011e1d1c?, 0x1248170?, 0x40011e1208?}) pkg/sentry/socket/netstack/netstack.go:1873 +0x194 fp=0x40016398a0 sp=0x4001639840 pc=0x81c5d4 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt(0x4001580500, 0x40011e1208?, 0x107?, 0x5?, {0x40011e1d1c, 0x10?, 0x90?}) pkg/sentry/socket/netstack/netstack.go:634 +0x220 fp=0x4001639950 sp=0x40016398a0 pc=0x815ef0 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt(0x40011e1208, 0x14e228?, {{0x4}, {0x107}, {0x5}, {0x200000c0}, {0x10}, {0x0}}) pkg/sentry/syscalls/linux/sys_socket.go:551 +0x248 fp=0x4001639a30 sp=0x4001639950 pc=0x898b28 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x40011e1208, 0xd0, {{0x4}, {0x107}, {0x5}, {0x200000c0}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x664 fp=0x4001639c60 sp=0x4001639a30 pc=0x6df6c4 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x40011e1208, 0xd0, {{0x4}, {0x107}, {0x5}, {0x200000c0}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x48 fp=0x4001639cc0 sp=0x4001639c60 pc=0x6e0988 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x40011e1208, 0xd0, {{0x4}, {0x107}, {0x5}, {0x200000c0}, {0x10}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x7c fp=0x4001639d10 sp=0x4001639cc0 pc=0x6e054c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4000a489c0?) pkg/sentry/kernel/task_syscall.go:258 +0x2e8 fp=0x4001639df0 sp=0x4001639d10 pc=0x6e0278 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4000b4f560?, 0x40011e1208) pkg/sentry/kernel/task_run.go:269 +0x10ac fp=0x4001639f10 sp=0x4001639df0 pc=0x6d45bc gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x40011e1208, 0x1999) pkg/sentry/kernel/task_run.go:97 +0x250 fp=0x4001639fb0 sp=0x4001639f10 pc=0x6d2e60 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x2c fp=0x4001639fd0 sp=0x4001639fb0 pc=0x6dde8c runtime.goexit({}) src/runtime/asm_arm64.s:1223 +0x4 fp=0x4001639fd0 sp=0x4001639fd0 pc=0x8d564 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 35022 pkg/sentry/kernel/task_start.go:412 +0xd8