panic: runtime error: slice bounds out of range

goroutine 172 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/platform/safecopy.CopyIn(0x3f937cd31000, 0x200000, 0x200000, 0x3f937ec7b000, 0x3f937cd31000, 0x200000, 0x0)
	pkg/sentry/platform/safecopy/safecopy_unsafe.go:107 +0x1ff
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.Copy(0x3f937cd31000, 0x200000, 0x0, 0x3f937ec7b000, 0x200000, 0x200001, 0x1, 0xc4205f5990, 0x428854)
	pkg/sentry/safemem/block_unsafe.go:214 +0x166
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.CopySeq(0x3f937cd31000, 0xffffffffffffffff, 0x0, 0x200000, 0xc42041e888, 0x5, 0x0, 0x200000, 0x0, 0x0, ...)
	pkg/sentry/safemem/seq_unsafe.go:276 +0x25d
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.(*BlockSeqReader).ReadToBlocks(0xc4206bd960, 0x3f937cd31000, 0xffffffffffffffff, 0x0, 0x200000, 0xc4205f5b20, 0x40fb69, 0xc4206bd960)
	pkg/sentry/safemem/io.go:86 +0x84
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.ReadFullToBlocks(0xc4e120, 0xc4206bd960, 0x3f937cd31000, 0xffffffffffffffff, 0x0, 0x200000, 0x0, 0x200000, 0x0)
	pkg/sentry/safemem/io.go:54 +0xe4
gvisor.googlesource.com/gvisor/pkg/sentry/platform.AllocateAndFill(0xc5d840, 0xc420155680, 0x200000, 0x1, 0xc4e120, 0xc4206bd960, 0x5, 0x0, 0x200000, 0xc42024c000)
	pkg/sentry/platform/platform.go:426 +0x114
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).breakCopyOnWriteLocked(0xc420172000, 0xc42024c000, 0x5, 0xcff000, 0xd00000, 0xcff000, 0xd00000, 0xc42024c000, 0x5, 0xc42024c000)
	pkg/sentry/mm/pma.go:433 +0x34d
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc420172000, 0xc5afc0, 0xc4206d8000, 0xc420172070, 0x2, 0xcff000, 0xd00000, 0x1, 0xc420172070, 0x3, ...)
	pkg/sentry/mm/pma.go:142 +0x2a2
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).HandleUserFault(0xc420172000, 0xc5afc0, 0xc4206d8000, 0xcff538, 0xc420000100, 0xc4200dde68, 0xc42013a600, 0x100)
	pkg/sentry/mm/syscalls.go:55 +0x194
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc4206d8000, 0xc4de40, 0x0)
	pkg/sentry/kernel/task_run.go:255 +0x5ba
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc4206d8000, 0x13)
	pkg/sentry/kernel/task_run.go:95 +0x174
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:258 +0x100