panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x4dc1a8]

goroutine 140955 gp=0x4001e99dc0 m=13 mp=0x4000416708 [running]:
panic({0xcd9020?, 0x1b7e880?})
	bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x154 fp=0x4000cef8e0 sp=0x4000cef830 pc=0x84234
runtime.panicmem(...)
	bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262
runtime.sigpanic()
	bazel-out/aarch64-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x300 fp=0x4000cef940 sp=0x4000cef8e0 pc=0x86a40
gvisor.dev/gvisor/pkg/sentry/mm.vmaIterator.Start(...)
	bazel-out/aarch64-fastbuild/bin/pkg/sentry/mm/vma_set.go:1476
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).madviseMutateVMAs(0x4006aee008, 0x2070b000?, 0x86ac726dff2f4713, 0x4000cefa18)
	pkg/sentry/mm/syscalls.go:1264 +0x168 fp=0x4000cef9f0 sp=0x4000cef950 pc=0x4dc1a8
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).SetDontFork(...)
	pkg/sentry/mm/syscalls.go:1292
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Madvise(0x4008ef5908?, 0x78ac?, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_mmap.go:186 +0x98 fp=0x4000cefa30 sp=0x4000cef9f0 pc=0x7b4088
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4008ef5908, 0xe9, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x4e8 fp=0x4000cefc60 sp=0x4000cefa30 pc=0x647678
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4008ef5908, 0xe9, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x3c fp=0x4000cefcc0 sp=0x4000cefc60 pc=0x6485ac
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4008ef5908, 0xe9, {{0x20bdc000}, {0x86ac726dff2f4713}, {0xa}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x58 fp=0x4000cefd10 sp=0x4000cefcc0 pc=0x648228
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x400a53f6b0?)
	pkg/sentry/kernel/task_syscall.go:258 +0x23c fp=0x4000cefdf0 sp=0x4000cefd10 pc=0x647fdc
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4004f58990?, 0x4008ef5908)
	pkg/sentry/kernel/task_run.go:269 +0xce4 fp=0x4000ceff10 sp=0x4000cefdf0 pc=0x63df84
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4008ef5908, 0xb59b)
	pkg/sentry/kernel/task_run.go:97 +0x1d4 fp=0x4000ceffb0 sp=0x4000ceff10 pc=0x63cc14
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x2c fp=0x4000ceffd0 sp=0x4000ceffb0 pc=0x64620c
runtime.goexit({})
	src/runtime/asm_arm64.s:1223 +0x4 fp=0x4000ceffd0 sp=0x4000ceffd0 pc=0x8d484
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 140950
	pkg/sentry/kernel/task_start.go:400 +0xc4