panic: invalid allocation length: 0x0

goroutine 9535234 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/platform/filemem.(*FileMem).Allocate(0xc4202c4000, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/platform/filemem/filemem.go:250 +0x6bb
gvisor.googlesource.com/gvisor/pkg/sentry/kernel/shm.(*Registry).newShm(0xc4205dd740, 0xc82bc0, 0xc4225c6000, 0x2c24, 0x0, 0x0, 0x0, 0x0, 0x41ea317c, 0xc4204b8ae0, ...)
	pkg/sentry/kernel/shm/shm.go:201 +0xc0
gvisor.googlesource.com/gvisor/pkg/sentry/kernel/shm.(*Registry).FindOrCreate(0xc4205dd740, 0xc82bc0, 0xc4225c6000, 0x2c24, 0x0, 0x0, 0xc420000001, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/shm/shm.go:190 +0x227
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Shmget(0xc4225c6000, 0x0, 0x0, 0x0, 0x20b39000, 0x0, 0x0, 0x428854, 0xbead70, 0xc4204b8c20, ...)
	pkg/sentry/syscalls/linux/sys_shm.go:38 +0x103
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc4225c6000, 0x1d, 0x0, 0x0, 0x0, 0x20b39000, 0x0, 0x0, 0xc42023aac0, 0xbc1d40, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x307
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc4225c6000, 0x1d, 0x0, 0x0, 0x0, 0x20b39000, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:278 +0x62
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc4225c6000, 0x1d, 0x0, 0x0, 0x0, 0x20b39000, 0x0, 0x0, 0xc75c60, 0xc4204b8e18)
	pkg/sentry/kernel/task_syscall.go:241 +0x91
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc4225c6000, 0x2, 0xc42260ea20)
	pkg/sentry/kernel/task_syscall.go:216 +0x10c
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc4225c6000, 0xc75c60, 0x0)
	pkg/sentry/kernel/task_run.go:217 +0xe56
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc4225c6000, 0xb170)
	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