panic: Only permission mask must be set: 306f3435

goroutine 504146 [running]:
panic(0x10cb560, 0xc0051775b0)
	GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc00205d820 sp=0xc00205d758 pc=0x437c65
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*DynamicBytesFile).Init(0xc003b98380, 0x1476ce0, 0xc00483ea80, 0xc0005f2b40, 0x1600000000, 0x6, 0x144ab60, 0xc000d1b340, 0xc0005f0225)
	pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go:55 +0x167 fp=0xc00205d878 sp=0xc00205d820 pc=0x845647
gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*filesystem).newQueueInode(0xc0005144d0, 0x1476ce0, 0xc00483ea80, 0xc0005f2b40, 0xc000d1b340, 0xc000d10225, 0xc00205d928, 0x869559)
	pkg/sentry/fsimpl/mqfs/queue.go:44 +0xc9 fp=0xc00205d8d8 sp=0xc00205d878 pc=0x86d349
gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*RegistryImpl).New(0xc0005a2f18, 0x1476ce0, 0xc00483ea80, 0xc11b7ba800, 0x4, 0xc000d1b340, 0x0, 0x80002250001, 0x0, 0x0, ...)
	pkg/sentry/fsimpl/mqfs/registry.go:107 +0xb0 fp=0xc00205d938 sp=0xc00205d8d8 pc=0x86e3b0
gvisor.dev/gvisor/pkg/sentry/kernel/mq.(*Registry).FindOrCreate(0xc000138320, 0x1476ce0, 0xc00483ea80, 0xc11b7ba800, 0x4, 0x0, 0x10001, 0x225, 0xc00205da60, 0x0, ...)
	pkg/sentry/kernel/mq/mq.go:189 +0x469 fp=0xc00205d9e0 sp=0xc00205d938 pc=0x869289
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.MqOpen(0xc00483ea80, 0x200013c0, 0x40, 0x225, 0x20001400, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/mq.go:56 +0x1ce fp=0xc00205db00 sp=0xc00205d9e0 pc=0xe3ad8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00483ea80, 0xf0, 0x200013c0, 0x40, 0x225, 0x20001400, 0x0, 0x0, 0xc000001fa0, 0x12d7840, ...)
	pkg/sentry/kernel/task_syscall.go:103 +0x13c fp=0xc00205dc60 sp=0xc00205db00 pc=0x9d7cfc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00483ea80, 0xf0, 0x200013c0, 0x40, 0x225, 0x20001400, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:238 +0x66 fp=0xc00205dce8 sp=0xc00205dc60 pc=0x9d8e86
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00483ea80, 0xf0, 0x200013c0, 0x40, 0x225, 0x20001400, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:198 +0x98 fp=0xc00205dd48 sp=0xc00205dce8 pc=0x9d8a78
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00483ea80, 0x2, 0xc00483ea80)
	pkg/sentry/kernel/task_syscall.go:173 +0x15c fp=0xc00205de18 sp=0xc00205dd48 pc=0x9d841c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00483ea80, 0x144a900, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc8c fp=0xc00205df60 sp=0xc00205de18 pc=0x9cd0ac
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00483ea80, 0x2ab8)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc00205dfd0 sp=0xc00205df60 pc=0x9cbd2f
runtime.goexit()
	src/runtime/asm_amd64.s:1371 +0x1 fp=0xc00205dfd8 sp=0xc00205dfd0 pc=0x472861
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:327 +0xfe