panic: Incrementing non-positive ref count

DIAGNOSIS:
retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer


Error collecting stacks: failed to run ["/syzkaller/managers/kvm-direct-overlay-host-race/current/image" "-root" "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "-watchdog-action=panic" "-network=none" "-debug" "-platform=ptrace" "-file-access=exclusive" "-overlay" "-network=host" "debug" "-stacks" "ci-gvisor-kvm-direct-overlay-host-race-1"]: exit status 128
retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
goroutine 2785631 [running]:
gvisor.dev/gvisor/pkg/refs.(*AtomicRefCount).IncRef(...)
	pkg/refs/refcounter.go:370
gvisor.dev/gvisor/pkg/sentry/fs.(*Dirent).IncRef(0xc0002cfa20)
	pkg/sentry/fs/dirent.go:1309 +0xf7
gvisor.dev/gvisor/pkg/sentry/fs.(*Mount).Root(...)
	pkg/sentry/fs/mounts.go:106
gvisor.dev/gvisor/pkg/sentry/fs/proc.forEachMount(0xc00147ca80, 0xc000df1010)
	pkg/sentry/fs/proc/mounts.go:59 +0x2bd
gvisor.dev/gvisor/pkg/sentry/fs/proc.(*mountsFile).ReadSeqFileData(0xc000fb4078, 0x13d18e0, 0xc0015daa80, 0x0, 0x0, 0x8ae2a2, 0x8ae916, 0xc0014a8848, 0x15adf5db40000000)
	pkg/sentry/fs/proc/mounts.go:174 +0xd1
gvisor.dev/gvisor/pkg/sentry/fs/proc/seqfile.(*SeqFile).updateSourceLocked(0xc0014a8820, 0x13d18e0, 0xc0015daa80, 0x0)
	pkg/sentry/fs/proc/seqfile/seqfile.go:180 +0x136
gvisor.dev/gvisor/pkg/sentry/fs/proc/seqfile.(*seqFileOperations).Read(0xc000fb4090, 0x13d18e0, 0xc0015daa80, 0xc00168ab00, 0x13cf620, 0xc001071000, 0x0, 0x1, 0x0, 0x0, ...)
	pkg/sentry/fs/proc/seqfile/seqfile.go:229 +0xedc
gvisor.dev/gvisor/pkg/sentry/fs.(*File).Readv(0xc00168ab00, 0x13d18e0, 0xc0015daa80, 0x13cf620, 0xc001071000, 0x0, 0x1, 0x0, 0x0, 0x100, ...)
	pkg/sentry/fs/file.go:270 +0x231
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.readv(0xc0015daa80, 0xc00168ab00, 0x13cf620, 0xc001071000, 0x0, 0x1, 0x0, 0x0, 0x100, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_read.go:257 +0xe1
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Read(0xc0015daa80, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_read.go:71 +0x292
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0015daa80, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4679d1, 0xc0015db258, ...)
	pkg/sentry/kernel/task_syscall.go:165 +0x408
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0015daa80, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc000d13c20)
	pkg/sentry/kernel/task_syscall.go:283 +0xb5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0015daa80, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc000df1d38, 0xd88b85)
	pkg/sentry/kernel/task_syscall.go:244 +0x10a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0015daa80, 0x2, 0xc0006fc300)
	pkg/sentry/kernel/task_syscall.go:219 +0x1b7
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc0015daa80, 0x13b6b80, 0x0)
	pkg/sentry/kernel/task_run.go:219 +0x1524
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0015daa80, 0xa0fb)
	pkg/sentry/kernel/task_run.go:91 +0x2e6
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:286 +0x19e