Extracting prog: 57.36081143s
Minimizing prog: 33.51µs
Simplifying prog options: 0s
Extracting C: 33.629633217s
Simplifying C: 2m36.936813961s


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}}): madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000bdc000/0x4000)=nil, 0x86ac726dff2f4713, 0xa)

program crashed: panic: runtime error: invalid memory address or nil pointer dereference
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
extracting C reproducer
testing compiled C program (duration=1m2.009859853s, {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}}): madvise
program crashed: panic: runtime error: invalid memory address or nil pointer dereference
simplifying C reproducer
testing compiled C program (duration=1m2.009859853s, {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}}): madvise
program crashed: panic: runtime error: invalid memory address or nil pointer dereference
testing compiled C program (duration=1m2.009859853s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false 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}}): madvise
program crashed: panic: runtime error: invalid memory address or nil pointer dereference
testing compiled C program (duration=1m2.009859853s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise
program crashed: panic: runtime error: invalid memory address or nil pointer dereference
testing compiled C program (duration=1m2.009859853s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise
program crashed: panic: runtime error: invalid memory address or nil pointer dereference
testing compiled C program (duration=1m2.009859853s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:10 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise
program crashed: panic: runtime error: invalid memory address or nil pointer dereference
reproducing took 4m7.927305198s
repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xd3a412]

goroutine 292 gp=0xc000e80700 m=9 mp=0xc000980008 [running]:
panic({0x1c5a8e0?, 0x2c2fca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000c234d0 sp=0xc000c23420 pc=0x478628
runtime.panicmem(...)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262
runtime.sigpanic()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x359 fp=0xc000c23530 sp=0xc000c234d0 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/mm.vmaIterator.Start(...)
	bazel-out/k8-fastbuild/bin/pkg/sentry/mm/vma_set.go:1476
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).madviseMutateVMAs(0xc000e56008, 0x20bdc000, 0x86ac726dff2f4713, 0xc000c23660)
	pkg/sentry/mm/syscalls.go:1264 +0x432 fp=0xc000c23640 sp=0xc000c23530 pc=0xd3a412
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).SetDontFork(0xc000e56008, 0x20bdc000, 0x86ac726dff2f4713, 0x1)
	pkg/sentry/mm/syscalls.go:1292 +0x95 fp=0xc000c23690 sp=0xc000c23640 pc=0xd3a8f5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Madvise(0xc000848c88, 0x484ca9?, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/syscalls/linux/sys_mmap.go:186 +0x1a8 fp=0xc000c236e8 sp=0xc000c23690 pc=0x12893e8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000848c88, 0x1c, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc000c23998 sp=0xc000c236e8 pc=0xff429f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000848c88, 0x1c, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc000c23a40 sp=0xc000c23998 pc=0xff63c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000848c88, 0x1c, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc000c23ab0 sp=0xc000c23a40 pc=0xff5ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000848c88)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc000c23bd0 sp=0xc000c23ab0 pc=0xff584a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000848c88?, 0xc000848c88)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc000c23e78 sp=0xc000c23bd0 pc=0xfe02d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000848c88, 0x8)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc000c23fb0 sp=0xc000c23e78 pc=0xfdd5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc000c23fe0 sp=0xc000c23fb0 pc=0xff1ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000c23fe8 sp=0xc000c23fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 256
	pkg/sentry/kernel/task_start.go:400 +0x185

final repro crashed as (corrupted=false):
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xd3a412]

goroutine 292 gp=0xc000e80700 m=9 mp=0xc000980008 [running]:
panic({0x1c5a8e0?, 0x2c2fca0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000c234d0 sp=0xc000c23420 pc=0x478628
runtime.panicmem(...)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262
runtime.sigpanic()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x359 fp=0xc000c23530 sp=0xc000c234d0 pc=0x47adf9
gvisor.dev/gvisor/pkg/sentry/mm.vmaIterator.Start(...)
	bazel-out/k8-fastbuild/bin/pkg/sentry/mm/vma_set.go:1476
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).madviseMutateVMAs(0xc000e56008, 0x20bdc000, 0x86ac726dff2f4713, 0xc000c23660)
	pkg/sentry/mm/syscalls.go:1264 +0x432 fp=0xc000c23640 sp=0xc000c23530 pc=0xd3a412
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).SetDontFork(0xc000e56008, 0x20bdc000, 0x86ac726dff2f4713, 0x1)
	pkg/sentry/mm/syscalls.go:1292 +0x95 fp=0xc000c23690 sp=0xc000c23640 pc=0xd3a8f5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Madvise(0xc000848c88, 0x484ca9?, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/syscalls/linux/sys_mmap.go:186 +0x1a8 fp=0xc000c236e8 sp=0xc000c23690 pc=0x12893e8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000848c88, 0x1c, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:143 +0xb9f fp=0xc000c23998 sp=0xc000c236e8 pc=0xff429f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000848c88, 0x1c, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:323 +0x85 fp=0xc000c23a40 sp=0xc000c23998 pc=0xff63c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000848c88, 0x1c, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x6}})
	pkg/sentry/kernel/task_syscall.go:283 +0xc7 fp=0xc000c23ab0 sp=0xc000c23a40 pc=0xff5ce7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000848c88)
	pkg/sentry/kernel/task_syscall.go:258 +0x54a fp=0xc000c23bd0 sp=0xc000c23ab0 pc=0xff584a
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000848c88?, 0xc000848c88)
	pkg/sentry/kernel/task_run.go:269 +0x2295 fp=0xc000c23e78 sp=0xc000c23bd0 pc=0xfe02d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000848c88, 0x8)
	pkg/sentry/kernel/task_run.go:97 +0x41b fp=0xc000c23fb0 sp=0xc000c23e78 pc=0xfdd5fb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x45 fp=0xc000c23fe0 sp=0xc000c23fb0 pc=0xff1ba5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000c23fe8 sp=0xc000c23fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 256
	pkg/sentry/kernel/task_start.go:400 +0x185