Hi, On Mon, Feb 20, 2023 at 07:39 AM -06, Hsin-Wei Hung wrote: > I think my previous report got blocked since it contained HTML > subparts so I am sending it again. Our bpf runtime fuzzer (a > customized syzkaller) triggered a lockdep warning in the bpf subsystem > indicating a potential deadlock. We are able to trigger this bug on > v5.15.25 and v5.19. The following code is a BPF PoC, and the lockdep > warning is attached at the end. Not sure if you've seen John's reply to the previous report: https://lore.kernel.org/all/63dddcc92fc31_6bb15208e9@john.notmuch/ Are you also fuzzing any newer kernel versions? Or was v5.19 the latest? Did syzkaller find a reproducer? Thanks, Jakub