panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x7dda58]

goroutine 1130465 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/mm.pmaIterator.ValuePtr(...)
	bazel-out/k8-fastbuild/bin/pkg/sentry/mm/pma_set.go:973
gvisor.googlesource.com/gvisor/pkg/sentry/mm.pmaIterator.getInternalMappingsLocked(0x0, 0x0, 0x0, 0x0)
	pkg/sentry/mm/pma.go:972 +0x48
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAInternalMappingsLocked(0xc4202db900, 0xc420afcb00, 0x1, 0x20003000, 0x20013000, 0x20003000, 0x20013000, 0x1, 0xc420afcb00)
	pkg/sentry/mm/pma.go:748 +0x73
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc4202db900, 0x10c1cc0, 0xc420aa3200, 0x20003000, 0x20013000, 0x100, 0xc421237240, 0x154ada4ba082c91a, 0x1, 0x100000000000000)
	pkg/sentry/mm/io.go:493 +0x348
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc4202db900, 0x10c1cc0, 0xc420aa3200, 0x0, 0x1, 0x20003000, 0x10000, 0x100, 0xc42125d240, 0x7faa1c0c6208, ...)
	pkg/sentry/mm/io.go:533 +0x974
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOutFrom(0xc4202db900, 0x10c1cc0, 0xc420aa3200, 0x0, 0x1, 0x20003000, 0x10000, 0x10b28c0, 0xc4201f5aa0, 0x470100, ...)
	pkg/sentry/mm/io.go:272 +0x211
gvisor.googlesource.com/gvisor/pkg/sentry/usermem.IOSequence.CopyOutFrom(0x10c0820, 0xc4202db900, 0x0, 0x1, 0x20003000, 0x10000, 0x100, 0x10c1cc0, 0xc420aa3200, 0x10b28c0, ...)
	pkg/sentry/usermem/usermem.go:521 +0xcf
gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil.(*CachingInodeOperations).Read(0xc420887c00, 0x10c1cc0, 0xc420aa3200, 0xc420f98fc0, 0x10c0820, 0xc4202db900, 0x0, 0x1, 0x20003000, 0x10000, ...)
	pkg/sentry/fs/fsutil/inode_cached.go:456 +0x1fe
gvisor.googlesource.com/gvisor/pkg/sentry/fs/gofer.(*fileOperations).Read(0xc420c65290, 0x10c1cc0, 0xc420aa3200, 0xc420f98fc0, 0x10c0820, 0xc4202db900, 0x0, 0x1, 0x20003000, 0x10000, ...)
	pkg/sentry/fs/gofer/file.go:229 +0x4a7
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*overlayFileOperations).Read(0xc420c652c0, 0x10c1cc0, 0xc420aa3200, 0xc420f99050, 0x10c0820, 0xc4202db900, 0x0, 0x1, 0x20003000, 0x10000, ...)
	pkg/sentry/fs/file_overlay.go:215 +0x243
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).Preadv(0xc420f99050, 0x10c1cc0, 0xc420aa3200, 0x10c0820, 0xc4202db900, 0x0, 0x1, 0x20003000, 0x10000, 0x100, ...)
	pkg/sentry/fs/file.go:250 +0x13d
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.preadv(0xc420aa3200, 0xc420f99050, 0x10c0820, 0xc4202db900, 0x0, 0x1, 0x20003000, 0x10000, 0x100, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_read.go:234 +0xaf
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Pread64(0xc420aa3200, 0x8, 0x20003000, 0x10000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_read.go:114 +0x2fc
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc420aa3200, 0x11, 0x8, 0x20003000, 0x10000, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x14f
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc420aa3200, 0x11, 0x8, 0x20003000, 0x10000, 0x0, 0x0, 0x0, 0x8, 0x46155c)
	pkg/sentry/kernel/task_syscall.go:280 +0x7e
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc420aa3200, 0x11, 0x8, 0x20003000, 0x10000, 0x0, 0x0, 0x0, 0xc4211303a0, 0xc42125dc68)
	pkg/sentry/kernel/task_syscall.go:241 +0xc4
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc420aa3200, 0x2, 0xc4203a58c0)
	pkg/sentry/kernel/task_syscall.go:216 +0x19f
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc420aa3200, 0x10b2b60, 0x0)
	pkg/sentry/kernel/task_run.go:219 +0x1502
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc420aa3200, 0x36cf)
	pkg/sentry/kernel/task_run.go:95 +0x265
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:258 +0x194