Extracting prog: 1m50.691388095s Minimizing prog: 2h8m0.438021828s Simplifying prog options: 16m0.046130257s Extracting C: 44.493840139s Simplifying C: 0s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 45s testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async, rerun: 64) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 16m0s testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async, rerun: 64) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program crashed: DATA RACE in packetmmap.(*Endpoint).marshalFrameHeader single: successfully extracted reproducer found reproducer with 3 syscalls minimizing guilty program testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async, rerun: 64) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet detailed listing: executing program 0: socket$packet(0x11, 0x2, 0x300) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: setsockopt$packet_rx_ring(0xffffffffffffffff, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async, rerun: 64) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, 0x0, 0x0) (async, rerun: 64) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (rerun: 64) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash testing program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async, rerun: 64) syz_emit_ethernet(0x142, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=16m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet program crashed: DATA RACE in packetmmap.(*Endpoint).Init a never seen crash title: DATA RACE in packetmmap.(*Endpoint).Init, ignore simplifying guilty program options testing program (duration=16m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_rx_ring-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000180)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x7fe, 0xf83, 0x8}, 0x1c) (async, rerun: 64) syz_emit_ethernet(0x142, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0) program did not crash reproducing took 2h26m35.669390979s repro crashed as (corrupted=false): WARNING: DATA RACE Read at 0x00c0001e9068 by goroutine 2385: gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).marshalFrameHeader() pkg/sentry/socket/netstack/packetmmap/endpoint.go:438 +0xab gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).HandlePacket() pkg/sentry/socket/netstack/packetmmap/endpoint.go:282 +0x98c gvisor.dev/gvisor/pkg/tcpip/transport/packet.(*endpoint).HandlePacket() pkg/tcpip/transport/packet/endpoint.go:495 +0x161 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverLinkPacket.func2() pkg/tcpip/stack/nic.go:826 +0x391 gvisor.dev/gvisor/pkg/tcpip/stack.(*packetEndpointList).forEach() pkg/tcpip/stack/nic.go:147 +0x142 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverLinkPacket() pkg/tcpip/stack/nic.go:841 +0x2e6 gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).DeliverLinkPacket() pkg/tcpip/link/nested/nested.go:71 +0xc1 gvisor.dev/gvisor/pkg/tcpip/link/packetsocket.(*endpoint).DeliverNetworkPacket() pkg/tcpip/link/packetsocket/packetsocket.go:45 +0x4b gvisor.dev/gvisor/pkg/tcpip/link/channel.(*Endpoint).InjectInbound() pkg/tcpip/link/channel/channel.go:208 +0xc1 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Write() pkg/tcpip/link/tun/device.go:250 +0x805 gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Write() pkg/sentry/devices/tundev/tundev.go:163 +0x591 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write() pkg/sentry/vfs/file_description.go:682 +0x144 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write() pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa4 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write() pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:143 +0xb9e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:323 +0x84 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:283 +0xc6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:258 +0x549 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:269 +0x2274 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:97 +0x41a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x44 Previous write at 0x00c0001e9068 by goroutine 2383: gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init() pkg/sentry/socket/netstack/packetmmap/endpoint.go:107 +0x2a8 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket() pkg/sentry/socket/netstack/netstack.go:2974 +0x907 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt() pkg/sentry/socket/netstack/netstack.go:1940 +0x365 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt() pkg/sentry/socket/netstack/netstack.go:672 +0x6a9 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt() pkg/sentry/syscalls/linux/sys_socket.go:551 +0x46b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:143 +0xb9e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:323 +0x84 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:283 +0xc6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:258 +0x549 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:269 +0x2274 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:97 +0x41a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x44 final repro crashed as (corrupted=false): WARNING: DATA RACE Read at 0x00c0001e9068 by goroutine 2385: gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).marshalFrameHeader() pkg/sentry/socket/netstack/packetmmap/endpoint.go:438 +0xab gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).HandlePacket() pkg/sentry/socket/netstack/packetmmap/endpoint.go:282 +0x98c gvisor.dev/gvisor/pkg/tcpip/transport/packet.(*endpoint).HandlePacket() pkg/tcpip/transport/packet/endpoint.go:495 +0x161 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverLinkPacket.func2() pkg/tcpip/stack/nic.go:826 +0x391 gvisor.dev/gvisor/pkg/tcpip/stack.(*packetEndpointList).forEach() pkg/tcpip/stack/nic.go:147 +0x142 gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).DeliverLinkPacket() pkg/tcpip/stack/nic.go:841 +0x2e6 gvisor.dev/gvisor/pkg/tcpip/link/nested.(*Endpoint).DeliverLinkPacket() pkg/tcpip/link/nested/nested.go:71 +0xc1 gvisor.dev/gvisor/pkg/tcpip/link/packetsocket.(*endpoint).DeliverNetworkPacket() pkg/tcpip/link/packetsocket/packetsocket.go:45 +0x4b gvisor.dev/gvisor/pkg/tcpip/link/channel.(*Endpoint).InjectInbound() pkg/tcpip/link/channel/channel.go:208 +0xc1 gvisor.dev/gvisor/pkg/tcpip/link/tun.(*Device).Write() pkg/tcpip/link/tun/device.go:250 +0x805 gvisor.dev/gvisor/pkg/sentry/devices/tundev.(*tunFD).Write() pkg/sentry/devices/tundev/tundev.go:163 +0x591 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write() pkg/sentry/vfs/file_description.go:682 +0x144 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write() pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa4 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write() pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:143 +0xb9e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:323 +0x84 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:283 +0xc6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:258 +0x549 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:269 +0x2274 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:97 +0x41a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x44 Previous write at 0x00c0001e9068 by goroutine 2383: gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init() pkg/sentry/socket/netstack/packetmmap/endpoint.go:107 +0x2a8 gvisor.dev/gvisor/pkg/sentry/socket/netstack.setSockOptPacket() pkg/sentry/socket/netstack/netstack.go:2974 +0x907 gvisor.dev/gvisor/pkg/sentry/socket/netstack.SetSockOpt() pkg/sentry/socket/netstack/netstack.go:1940 +0x365 gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).SetSockOpt() pkg/sentry/socket/netstack/netstack.go:672 +0x6a9 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.SetSockOpt() pkg/sentry/syscalls/linux/sys_socket.go:551 +0x46b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:143 +0xb9e gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:323 +0x84 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:283 +0xc6 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:258 +0x549 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:269 +0x2274 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:97 +0x41a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1() pkg/sentry/kernel/task_start.go:412 +0x44