panic: Only permission mask must be set: 306f30

goroutine 797743 [running]:
panic(0x10cb560, 0xc00c094750)
	GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc000773820 sp=0xc000773758 pc=0x437c65
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*DynamicBytesFile).Init(0xc0068e7c00, 0x1476ce0, 0xc00faeea80, 0xc0003c23c0, 0x1400000000, 0xe, 0x144ab60, 0xc000a36370, 0xc0003c0200)
	pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go:55 +0x167 fp=0xc000773878 sp=0xc000773820 pc=0x845647
gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*filesystem).newQueueInode(0xc000240580, 0x1476ce0, 0xc00faeea80, 0xc0003c23c0, 0xc000a36370, 0xc000a30200, 0xc000773928, 0x869559)
	pkg/sentry/fsimpl/mqfs/queue.go:44 +0xc9 fp=0xc0007738d8 sp=0xc000773878 pc=0x86d349
gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*RegistryImpl).New(0xc00030e798, 0x1476ce0, 0xc00faeea80, 0xc010621a00, 0x1f, 0xc000a36370, 0x0, 0x80002000001, 0x0, 0x0, ...)
	pkg/sentry/fsimpl/mqfs/registry.go:107 +0xb0 fp=0xc000773938 sp=0xc0007738d8 pc=0x86e3b0
gvisor.dev/gvisor/pkg/sentry/kernel/mq.(*Registry).FindOrCreate(0xc000236160, 0x1476ce0, 0xc00faeea80, 0xc010621a00, 0x1f, 0x0, 0x10001, 0x200, 0xc000773a60, 0x0, ...)
	pkg/sentry/kernel/mq/mq.go:189 +0x469 fp=0xc0007739e0 sp=0xc000773938 pc=0x869289
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.MqOpen(0xc00faeea80, 0x20003500, 0x40, 0x200, 0x20003540, 0x0, 0x0, 0xb3d2e, 0xc000773be4, 0x40000002, ...)
	pkg/sentry/syscalls/linux/vfs2/mq.go:56 +0x1ce fp=0xc000773b00 sp=0xc0007739e0 pc=0xe3ad8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00faeea80, 0xf0, 0x20003500, 0x40, 0x200, 0x20003540, 0x0, 0x0, 0x0, 0x12d7840, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x13c fp=0xc000773c60 sp=0xc000773b00 pc=0x9d7cfc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00faeea80, 0xf0, 0x20003500, 0x40, 0x200, 0x20003540, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc000773ce8 sp=0xc000773c60 pc=0x9d8e86
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00faeea80, 0xf0, 0x20003500, 0x40, 0x200, 0x20003540, 0x0, 0x0, 0xc0906ee6a0, 0xc0906ee600)
	pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc000773d48 sp=0xc000773ce8 pc=0x9d8a78
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00faeea80, 0x2, 0xc00faeea80)
	pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc000773e18 sp=0xc000773d48 pc=0x9d841c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00faeea80, 0x144a900, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc8c fp=0xc000773f60 sp=0xc000773e18 pc=0x9cd0ac
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00faeea80, 0xc1be)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc000773fd0 sp=0xc000773f60 pc=0x9cbd2f
runtime.goexit()
	src/runtime/asm_amd64.s:1371 +0x1 fp=0xc000773fd8 sp=0xc000773fd0 pc=0x472861
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:327 +0xfe