Extracting prog: 1m10.938463003s
Minimizing prog: 16m32.775622914s
Simplifying prog options: 1m22.727022191s
Extracting C: 38.279448489s
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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program crashed: DATA RACE in packetmmap.(*Endpoint).HandlePacket
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT
detailed listing:
executing program 0:
socket$packet(0x11, 0x2, 0x300)
r0 = socket$inet_udp(0x2, 0x2, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r1, 0x0, 0x0) (async)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
socket$inet_udp(0x2, 0x2, 0x0)
connect$inet(0xffffffffffffffff, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(0xffffffffffffffff, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff)
connect$inet(r1, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r1, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$inet_udp(0x2, 0x2, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r1, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10)
write$P9_RWSTAT(r2, 0x0, 0x0)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, 0x0, 0x0) (async)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r2, 0x0, 0x0)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, 0x0, 0x0) (rerun: 64)

program did not crash
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
program crashed: DATA RACE in packetmmap.(*ringBuffer).init
a never seen crash title: DATA RACE in packetmmap.(*ringBuffer).init, ignore
simplifying guilty program options
testing program (duration=1m22.664573344s, {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$packet-socket$inet_udp-fcntl$dupfd-connect$inet-write$P9_RWSTAT-setsockopt$packet_tx_ring
detailed listing:
executing program 0:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
connect$inet(r2, &(0x7f0000000000)={0x2, 0xffff, @empty}, 0x10) (async)
write$P9_RWSTAT(r2, 0x0, 0x0) (async)
setsockopt$packet_tx_ring(r0, 0x107, 0x5, &(0x7f00000000c0)=@req3={0x8000, 0x6, 0x8000, 0x6}, 0x1c) (rerun: 64)

program did not crash
reproducing took 19m44.720570957s
repro crashed as (corrupted=false):
WARNING: DATA RACE
Read at 0x00c0009e63e0 by goroutine 2879:
  gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).HandlePacket()
      pkg/sentry/socket/netstack/packetmmap/endpoint.go:223 +0x39a
  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/stack.(*nic).writeRawPacket()
      pkg/tcpip/stack/nic.go:429 +0xb0
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacket()
      pkg/tcpip/stack/nic.go:414 +0x6a
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket()
      pkg/tcpip/stack/nic.go:375 +0x22b
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacketPostRouting()
      pkg/tcpip/network/ipv4/ipv4.go:608 +0x616
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacket()
      pkg/tcpip/network/ipv4/ipv4.go:558 +0x2dd
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).WritePacket()
      pkg/tcpip/network/ipv4/ipv4.go:526 +0x244
  gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket()
      pkg/tcpip/stack/route.go:507 +0x172
  gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*WriteContext).WritePacket()
      pkg/tcpip/transport/internal/network/endpoint.go:359 +0x3ca
  gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*endpoint).write()
      pkg/tcpip/transport/udp/endpoint.go:517 +0x593
  gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*endpoint).Write()
      pkg/tcpip/transport/udp/endpoint.go:362 +0x91
  gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).Write()
      pkg/sentry/socket/netstack/netstack.go:546 +0x4e5
  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 0x00c0009e63e0 by goroutine 2882:
  gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init()
      pkg/sentry/socket/netstack/packetmmap/endpoint.go:108 +0x2e4
  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 0x00c0009e63e0 by goroutine 2879:
  gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).HandlePacket()
      pkg/sentry/socket/netstack/packetmmap/endpoint.go:223 +0x39a
  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/stack.(*nic).writeRawPacket()
      pkg/tcpip/stack/nic.go:429 +0xb0
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).writePacket()
      pkg/tcpip/stack/nic.go:414 +0x6a
  gvisor.dev/gvisor/pkg/tcpip/stack.(*nic).WritePacket()
      pkg/tcpip/stack/nic.go:375 +0x22b
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacketPostRouting()
      pkg/tcpip/network/ipv4/ipv4.go:608 +0x616
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).writePacket()
      pkg/tcpip/network/ipv4/ipv4.go:558 +0x2dd
  gvisor.dev/gvisor/pkg/tcpip/network/ipv4.(*endpoint).WritePacket()
      pkg/tcpip/network/ipv4/ipv4.go:526 +0x244
  gvisor.dev/gvisor/pkg/tcpip/stack.(*Route).WritePacket()
      pkg/tcpip/stack/route.go:507 +0x172
  gvisor.dev/gvisor/pkg/tcpip/transport/internal/network.(*WriteContext).WritePacket()
      pkg/tcpip/transport/internal/network/endpoint.go:359 +0x3ca
  gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*endpoint).write()
      pkg/tcpip/transport/udp/endpoint.go:517 +0x593
  gvisor.dev/gvisor/pkg/tcpip/transport/udp.(*endpoint).Write()
      pkg/tcpip/transport/udp/endpoint.go:362 +0x91
  gvisor.dev/gvisor/pkg/sentry/socket/netstack.(*sock).Write()
      pkg/sentry/socket/netstack/netstack.go:546 +0x4e5
  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 0x00c0009e63e0 by goroutine 2882:
  gvisor.dev/gvisor/pkg/sentry/socket/netstack/packetmmap.(*Endpoint).Init()
      pkg/sentry/socket/netstack/packetmmap/endpoint.go:108 +0x2e4
  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