panic: nested locking: kernel.taskSetRWMutex:
	goroutine 643 [running]:
	gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc00002a1e0)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/taskset_mutex.go:59 +0x98
	gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).Leader(0xc000fe1408)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/threads.go:484 +0xb4
	gvisor.dev/gvisor/pkg/sentry/kernel/fasync.(*FileAsync).NotifyEvent(0xc00055fdc0, 0x41)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/fasync/fasync.go:107 +0x2b2
	gvisor.dev/gvisor/pkg/waiter.(*Queue).Notify(0xc0012ac790, 0x41)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/waiter/waiter.go:253 +0x13d
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).notifyPIDFDsLocked(0xc000f35208)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/pidfd.go:281 +0xed
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).exitNotifyLocked(0xc000f35208, 0x0)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_exit.go:655 +0x19b
	gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitNotify).execute(0xc000f35208?, 0xc000f35208)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_exit.go:634 +0x3bd
	gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000f35208, 0x4e)
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_run.go:89 +0x6e7
	created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 611
		/syzkaller/.cache/bazel/_bazel_root/3cda29e0ad466371615d977190968f26/sandbox/linux-sandbox/9/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_start.go:416 +0x1be